[TriEmbed] 3D printing online

[Pete Soper via TriEmbed]

I just noticed JLC does more than PCBs and related services. How about 3D 
printing, including in stainless steel?

https://jlc3dp.com/3d-printing-quote

Pete
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[TriEmbed] Reminder & Discord link Re: Join us July 1st to learn about a new Scanning tunneling microscope project

[Pete soper via TriEmbed]

The meeting is 7pm via a zoom-like thing in your browser here: 
https://meet.jit.si/TriEmbed


The Discord server mentioned earlier can be joined here:

https://discord.gg/7NUxwzKc

(Discord is not being used directly for the meeting)

On 6/27/24 20:49, Pete Soper wrote:


Folks,

   Nick Edgington started a project with the Forge Initiative to build 
an affordable scanning tunneling microscope ("STM") capable of 
visualizing individual atoms. He,  Jaime Johnsen, and I have been 
gathering up information and doing a few initial things to test the 
waters with input from Rob Mackey of the Forge and others.  Now we'd 
like to start organizing the project and connecting with folks 
interested in becoming involved.


   An STM is a primarily electronic device that senses quantum 
tunneling current flows between individual atoms while an electrically 
charged, atomically sharp probe moves at very close range across the 
surface to be scanned. Commercial STMs such as at universities are 
very expensive. Our goal is to make something that can be reproduced 
for a few hundred dollars. Ultimately we want a kit suitable for 
school children. More details of STM operation here: 
https://my.eng.utah.edu/~lzang/images/Lecture_6_STM.pdf


  Here are some key features of the project:

  * Extremely efficient resistance to vibration. Because the probe
must move less  than a nanometer from the surface to be scanned,
very efficient dampening must be used. Also the dampening must be
portable and use inexpensive materials.
  * A means of moving the probe very precisely. Piezo crystals and
precise applied voltages are the common method for hobby STMs.
  * A means of creating atomically sharp probe wires (the tip must be
a single atom!). This typically involves electrochemical etching
with gizmos to manage the process in a very repeatable manner.
Alternatively, a probe tip can be made in a much simpler way with
manual techniques for cutting the probe wire.
  * A very stable package for the probe that contains the piezo probe
actuator and the probe current front end electronics. One of the
best projects we've found uses what appears to be a CNC-machined
block of aluminum that is a thing of beauty just asking to be used
for inspiration.
  * High performance but inexpensive electronics to sense probe
current (*peak* current is a nanoampere or two) and digitize it,
arrange bias voltages between tip and target to enable quantum
tunneling, and move the probe on three axes. The power supplies
have to be excellent. Custom PC boards are a given.
  * Software to control the system, gather data and translate it into
visualization and provide a user interface. A large body of code
for the Espressif ESP32 (project Edger) can be leveraged for a
very low cost system. The software will probably be a mixture of
Python, C, and Javascript.
  * Making test systems that help detect things going right and wrong.
  * Many supporting tasks to do with documentation, safety,
communication, coordination, sponsorship, etc.

*An informal meeting will be held this Monday July 1st at 7pm *with 
Jitsi using the usual TriEmbed URL : https://meet.jit.si/TriEmbed .


*A more formal meeting will be held in mid August* in a room provided 
by the town of Apex (the Forge is based in Apex).


  The various subsystems of an STM really push the envelope for 
performance, and this project will be quite challenging, even though 
there are many shoulders to stand on.


  A Discord channel on the Edger project is accumulating records while 
we finish setting up a GitHub repository and supporting web resources. 
I'll send directions on how to hook up with it later.


Pete
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Re: [TriEmbed] Now this is a cheap microcontroller

[Pete Soper via TriEmbed]

:-)
We just need to go in on a wire bond machine and the other stuff for packaging.
Pete

Jun 30, 2024 9:22:49 PM Mauricio Tavares :

> On Sun, Jun 30, 2024 at 9:06 PM Pete Soper via TriEmbed
>  wrote:
>> 
>> https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
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>   Should we make a group buy?
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[TriEmbed] Now this is a cheap microcontroller

[Pete Soper via TriEmbed]

https://zeptobars.com/en/read/Nyquest-Technology-NY8A051H-8051-smallest-microcontroller
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[TriEmbed] Join us July 1st to learn about a new Scanning tunneling microscope project

[Pete Soper via TriEmbed]

Folks,

   Nick Edgington started a project with the Forge Initiative to build 
an affordable scanning tunneling microscope ("STM") capable of 
visualizing individual atoms. He,  Jaime Johnsen, and I have been 
gathering up information and doing a few initial things to test the 
waters with input from Rob Mackey of the Forge and others.  Now we'd 
like to start organizing the project and connecting with folks 
interested in becoming involved.


   An STM is a primarily electronic device that senses quantum 
tunneling current flows between individual atoms while an electrically 
charged, atomically sharp probe moves at very close range across the 
surface to be scanned. Commercial STMs such as at universities are very 
expensive. Our goal is to make something that can be reproduced for a 
few hundred dollars. Ultimately we want a kit suitable for school 
children. More details of STM operation here: 
https://my.eng.utah.edu/~lzang/images/Lecture_6_STM.pdf


  Here are some key features of the project:

 * Extremely efficient resistance to vibration. Because the probe must
   move less  than a nanometer from the surface to be scanned, very
   efficient dampening must be used. Also the dampening must be
   portable and use inexpensive materials.
 * A means of moving the probe very precisely. Piezo crystals and
   precise applied voltages are the common method for hobby STMs.
 * A means of creating atomically sharp probe wires (the tip must be a
   single atom!). This typically involves electrochemical etching with
   gizmos to manage the process in a very repeatable manner.
   Alternatively, a probe tip can be made in a much simpler way with
   manual techniques for cutting the probe wire.
 * A very stable package for the probe that contains the piezo probe
   actuator and the probe current front end electronics. One of the
   best projects we've found uses what appears to be a CNC-machined
   block of aluminum that is a thing of beauty just asking to be used
   for inspiration.
 * High performance but inexpensive electronics to sense probe current
   (*peak* current is a nanoampere or two) and digitize it, arrange
   bias voltages between tip and target to enable quantum tunneling,
   and move the probe on three axes. The power supplies have to be
   excellent. Custom PC boards are a given.
 * Software to control the system, gather data and translate it into
   visualization and provide a user interface. A large body of code for
   the Espressif ESP32 (project Edger) can be leveraged for a very low
   cost system. The software will probably be a mixture of Python, C,
   and Javascript.
 * Making test systems that help detect things going right and wrong.
 * Many supporting tasks to do with documentation, safety,
   communication, coordination, sponsorship, etc.

*An informal meeting will be held this Monday July 1st at 7pm *with 
Jitsi using the usual TriEmbed URL : https://meet.jit.si/TriEmbed .


*A more formal meeting will be held in mid August* in a room provided by 
the town of Apex (the Forge is based in Apex).


  The various subsystems of an STM really push the envelope for 
performance, and this project will be quite challenging, even though 
there are many shoulders to stand on.


  A Discord channel on the Edger project is accumulating records while 
we finish setting up a GitHub repository and supporting web resources. 
I'll send directions on how to hook up with it later.


Pete
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[TriEmbed] PCB creepage story

[Pete Soper via TriEmbed]

https://tomscii.sig7.se/2024/05/PSU-burnout-and-torture-cracking-water

PS The news story about the burned down house after "just one more experiment" 
was omitted. :-)
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Re: [TriEmbed] A peer to peer scheme for Raspberry Pi

[Pete Soper via TriEmbed]

Remind me of previous mechanisms for accessing a pi from "anywhere on the 
planet"?
Pete

May 21, 2024 9:49:56 PM Mike Lisanke :

> I'm seeing this New function promoted everywhere But what's new?
> With X windows and ssh, raspberry pi and every linux OS has had remote access 
> from anywhere always.
> Are these folks selling something custom where you use there web site to 
> access your RPi?
> It does take some skills to setup a working RPi desktop through SSH and still 
> have your mouse work to drive the cursor without glitch.
> But Most people also Only need a text console to remotely control a RPi and 
> in that case Putty works fine.
> Also Windows OS has a remote terminal app that works fine for remoting RPi's 
> X desktop. No webpage or browser app necessary. 
> So please explain what they've done New? and Is their custom app thru browser 
> necessary? do they see your usage? 
> Thanks for comments/opinions. 
> 
> On Tue, May 7, 2024 at 11:41 AM Pete Soper via TriEmbed 
>  wrote:
>> https://www.raspberrypi.com/news/raspberry-pi-connect/
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>> 
> 
> 
> -- 
> Best regards,  Mike
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[TriEmbed] A peer to peer scheme for Raspberry Pi

[Pete Soper via TriEmbed]

https://www.raspberrypi.com/news/raspberry-pi-connect/
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[TriEmbed] Single molecule transistor

[Pete Soper via TriEmbed]

It switches with constructive and destructive quantum interference.

https://spectrum.ieee.org/quantum-interference-transistor
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Re: [TriEmbed] Monthly meeting 4/8/24

[Pete soper via TriEmbed]

Don't forget tomorrow is the Raleigh hamfest:https://www.rarsfest.org/

There will be some TriEmbed and Splatspace tables to visit. If you're 
interested in amateur radio, in addition to  the obvious venue items, 
look out for the PVRC tables. The oldest amateur radio contesting club 
in the country and with a chapter in this area. (Potomac Valley Radio Club)


If it's your first time it is advisable to not take a lot of cash with 
you. :-)


Pete

On 4/5/24 09:04, The MacDougals via TriEmbed wrote:


We will have our normal monthly meeting on Monday 4/8/24 at 7:00 pm

Agenda:

- Welcome

- Announcements

    - RARSfest report

- P.O.T.M.

- Show and Tell

The plan for this month is to use https://meet.jit.si/TriEmbed

---> Paul


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[TriEmbed] 2FA required by Github on the 19th

[Pete Soper via TriEmbed]

Here's how to set it 
up:https://github.com/settings/two_factor_authentication/setup/intro



Pete
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[TriEmbed] list posting size limit

[Pete soper via TriEmbed]

I've increased the message size limit from 250 kilobytes to four megabytes.

Pete


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[TriEmbed] one more reminder Re: Next week's meeting will be in person!

[Pete soper via TriEmbed]

Ring in the new year with your fellow nerds tomorrow night!

Pete

On 1/4/24 11:53, The MacDougals via TriEmbed wrote:


Ok, so I booked a room at Abbey Road Tavern in Cary (not Apex).  We 
have met there before for the Edger group.


https://www.google.com/maps/place/1195+W+Chatham+St,+Cary,+NC+27513

1195 W. Chatham St Cary, NC 27513
(919) 481-4434 

If you are interested in ordering a meal, you may come at 6:30.

The meeting will start some time after 7:00.

Bring something for show-and-tell!

There will *not* be an online meeting via Jitsi this month.

Hope to see you there.

---> Paul

*From:*TriEmbed  *On Behalf Of *The 
MacDougals via TriEmbed

*Sent:* Tuesday, January 02, 2024 5:53 PM
*To:* triembed@triembed.org
*Cc:* The MacDougals 
*Subject:* [TriEmbed] Next week's meeting

Do we want to reserve a room at a restaurant (e.g. Abby Road) or 
reserve a room elsewhere (The Forge, a church, NCSU, …)?


Does anyone want to help with making the arrangements?

---> Paul


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[TriEmbed] Edger project meeting @ Forge & online 7pm Wednesday (tomorrow) the 20th

[Pete soper via TriEmbed]

Please join us tomorrow for another project meeting for Edger, a system 
to make esp32 easier to use for some classes of application. We'll start 
at 7pm and end when the agenda is completed or 9pm at the latest with a 
break to chin wag around 8.


The in person meeting will be at the Forge Initiative at 2172 Salem 
Street, Suite 002, Apex, NC (easy to reach from highway 64).


The online connection will be via Jitsi at https://meet.jit.si/TriEmbed. 
If you are an early bird connecting to this please wait for me to log in 
as "admin" and this will connect everybody to the meeting who had been 
waiting. Please don't login yourself.


The agenda for the meeting:

0) Hellos,  introductions and announcements

1) Review of current (version 0.1.0)  Edger features:

  * Aardvark web GUI screenshots/notes (for this and items below)

  * Command line interfaces (CLIs) via Python

  * Short demos of Aardvark GUI and Python CLI in action

2) Review of upcoming (version 0.2.0) features:

   * Ant command line interface (CLI) (screenshots/notes for all)

   * Ant date/time handling

   * Ant flash filesystem web graphical interface (GUI)

   * Short demo of Ant CLI and GUI

3) If time allows:

   * What to use in addition to Signal?

The meeting will be recorded for upload to YouTube.

Pete


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[TriEmbed] Novel approach for low power logic from Intel

[Pete soper via TriEmbed]

https://www.wired.com/2012/02/intel-solar-chip-nears-light-of-day/


Pete


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Re: [TriEmbed] All Electronics is going out of business!

[Pete soper via TriEmbed]

When I lived in the Boston area in the mid 70s I frequently visited Poly 
Paks , an easy drive 
from where I lived. If you follow the link check out the lower right 
corner: their terms were even more amazing than their prices. Best 
selection of factory floor sweepings in the east at the time. They're 
long gone but I'm still nostalgic about them and All Electronics was 
certainly an outfit in the same vein. I loved the stuff from All.


Now most folks have very easy access to cheap stuff as well as parts 
with provenance online. With my little biz I was careful to keep the 
floor sweepings strictly segregated from the parts I could trust. But I 
cannot recall more than one or two episodes of untraceable parts failing 
in the past several years. The same could not be said for the Poly Paks 
parts. Many of them were very obviously seconds and testing them before 
soldering if possible was important. For instance noticing your linear 
regulator is smoking hot while trying to power a single 7400 logic chip. 
Sometimes the part of the package just above the IC would go funny and 
you could actually see the magic smoke come out. :-)


Pete


On 7/14/23 22:26, Scott Hall via TriEmbed wrote:

I've bought from a lot over the years...
https://www.allelectronics.com/

--
Scott G. Hall
scottgha...@gmail.com

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Re: [TriEmbed] a full custom biz card that runs Linux

[Pete soper via TriEmbed]

Wow, John. It never occurred to me to turn solder paste into "solder 
paint"!  Does that really work for you for .5mm centered QFNs?


Pete

On 6/4/23 14:01, John Wettroth wrote:

I think everyone experiments with SMT assembly to get to something that works.  
I used a little Chinese clone pneumatic dispenser that pushed out paste through 
a blunt needle- its fine for small board if you can pull an airline into your 
lab.  The only designator is 983A, it must be a copy of something made by Hakko 
or Plato, etc.- I still use it but its only suited for really simple boards.  
Hitting pads on a 300 pin BGA or a few hundred R's and C's is no fun.  Metal 
stencils are the way to go, they work so well- plastic does work but past can 
go under them pretty easily.  The only problem I have now is keeping solder 
paste from going bad and turning to concrete.  I have a little beer fridge in 
my lab and keep it in there which help.  I bring it up to room temp and if its 
too stiff, add a little Isopropyl- I don't go strictly by the expire dates- I 
can use it for 2 years or so though it might expire at 6 mos.  You can also put 
a little bit of liquid flux in it to liven it up.  It fails somewhat 
gracefully, you can do a test run and see if it will reflow without committing 
a bunch of boards.

I guess the original point of that post is the guy built a Linux box on a biz 
car- that's pretty cool.  I jumped to your stencil comment.

Regards,
John M. Wettroth
E: j...@mindspring.com
M: (919) 349-9875
H:  (984) 329-5420

-Original Message-
From: TriEmbed  On Behalf Of Pete soper via 
TriEmbed
Sent: Sunday, June 4, 2023 12:40 PM
To: triembed@triembed.org
Subject: Re: [TriEmbed] a full custom biz card that runs Linux

About 10 years ago OSH Stencils started out selling stencils made of
kapton. The kapton came on rolls and there was curvature in the stencils
such that 80% of the hassle of applying paste was holding the stencil
down as flat as possible. For fine pitch parts it was a serious PITA. I
was told kapton was used because it would cut cleanly. After Matt
(owner) had shipped a zillion kapton stencils he could afford a serious
laser cutter to offer stainless steel. For me this was a cause for major
celebration. The time with the kapton was when stainless steel stencils
from other sources were expensive. Now they are  cheap, as you noted
John. A lot of the stencils I get from Matt are $10. A hobbyist might
flinch at this cost, but IMO it's a small price to pay for the ability
to actually assemble a board vs imagining that one can do it by manually
putting paste to board. One can't actually manually put paste to board
reliably for small parts. :-) Again, my focus is on small pitch parts as
these have become a fact of life and avoiding them imposes a very heavy
constraint on design. I'm preparing to make a flexible board for a
sensor that has 10 pads around it's sides underneath and is 1.8x2.0mm
overall. That takes a good stencil. :-)

A plastic that is dead flat to begin with and that doesn't go bonkers
with a laser (i.e. that can be cut cleanly without the edges swelling)
would IMO make for a cottage industry for somebody because they could
beat the stainless steel prices and perhaps offer comparable quality
results. But I'd have to see such a plastic stencil under my microscope
to be convinced that it can actually compete with stainless steel. My
'scope has a very good camera and I'd be happy to take pictures to share
with the group so we could see what the apertures look like close up.
("Aperture" is the 50 cent term for the mostly square corner holes in a
stencil.)

Pete

On 6/4/23 08:09, John Wettroth via TriEmbed wrote:

I've played with this with standard transparency film and a little 40w Chinese
laser- takes a bit of tuning to get it all correct but works.  Stencils are
really cheap when you order a board if you remember.

Regards,
John M. Wettroth
E: j...@mindspring.com
M: (919) 349-9875
H:  (984) 329-5420

-Original Message-
From: TriEmbed  On Behalf Of Pete soper via
TriEmbed
Sent: Saturday, June 3, 2023 1:51 PM
To: Triangle Embedded Interest Group 
Subject: [TriEmbed] a full custom biz card that runs Linux

He made his solder stencil with a laser cutter and the BOM runs around $3.

https://www.thirtythreeforty.net/posts/2019/12/my-business-card-runs-linux/


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[TriEmbed] a full custom biz card that runs Linux

[Pete soper via TriEmbed]

He made his solder stencil with a laser cutter and the BOM runs around $3.

https://www.thirtythreeforty.net/posts/2019/12/my-business-card-runs-linux/


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Re: [TriEmbed] Project Edger meeting Wednesday 5/24 7-9pm @ Forge & Jitsi

[Pete soper via TriEmbed]

We'll create an agenda at the start of the meeting.

Pete

On 5/18/23 14:18, Pete soper wrote:


Project Edger Meeting
Wednesday the 24th we'll have an Edger meeting at the Forge Initiative 
at 2172 Salem St., suite 002, Apex, NC. Doors will open at 6:30pm for 
setup and the meeting will start at 7pm and finish at 9pm. This will 
be a hybrid meeting with a Jitsi session at 
_https://meet.jit.si/TriEmbed_ 


The meeting agenda will be published closer to the day.

The project website is at https://edger.app and the repository is at 
https://github.com/triembed/edger .


Pete
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[TriEmbed] Project Edger meeting Wednesday 5/24 7-9pm @ Forge & Jitsi

[Pete soper via TriEmbed]

Project Edger Meeting
Wednesday the 24th we'll have an Edger meeting at the Forge Initiative 
at 2172 Salem St., suite 002, Apex, NC. Doors will open at 6:30pm for 
setup and the meeting will start at 7pm and finish at 9pm. This will be 
a hybrid meeting with a Jitsi session at _https://meet.jit.si/TriEmbed_ 



The meeting agenda will be published closer to the day.

The project website is at https://edger.app and the repository is at 
https://github.com/triembed/edger .


Pete
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Re: [TriEmbed] Python print problem

[Pete soper via TriEmbed]

flush = True did the trick. Thanks!

Pete

On 5/11/23 13:41, jonathan hunsberger via TriEmbed wrote:
Probably output buffering if the script continues running. See what 
happens if you set PYTHONUNBUFFERED environment variable or add , 
flush=True to your print arguments.


On Thu, May 11, 2023, 13:31 Pete soper via TriEmbed 
 wrote:


I have some python code that has this statement:

 print(f'C: {degrees_c:6.2f} F: {degrees_f:6.2f}')

If I run the script from an Ubuntu bash terminal session I get the
two
temperatures as expected. But if I redirect the output I get nothing.
For instance these two commands result in zero output to the
terminal or
log file:

 ./edgerBMP3XX.py >log

 ./edgerBMP3XX.py | tee -a log

What am I doing wrong? The version is 3.8.10.

Pete



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[TriEmbed] Python print problem

[Pete soper via TriEmbed]

I have some python code that has this statement:

    print(f'C: {degrees_c:6.2f} F: {degrees_f:6.2f}')

If I run the script from an Ubuntu bash terminal session I get the two 
temperatures as expected. But if I redirect the output I get nothing. 
For instance these two commands result in zero output to the terminal or 
log file:


    ./edgerBMP3XX.py >log

    ./edgerBMP3XX.py | tee -a log

What am I doing wrong? The version is 3.8.10.

Pete



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[TriEmbed] Short discourse on computer language commonality

[Pete soper via TriEmbed]

This is a nice, compact treatment of computer languages arranged in 
seven categories:


https://madhadron.com/programming/seven_ur_languages.html

-Pete


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Re: [TriEmbed] Linux beginning

[Pete soper via TriEmbed]

For me it was 1993 using Slackware with a .91 kernel. A bazillion 
floppies (or maybe 35) as Brad said. Had to customize/rebuild the kernel 
a lot. Making uucp work was my first goal as I recall. This was on a 
40MHz AMD 386. Printing was an additional adventure, and sound another 
one. I eventually learned to go with the flow so when it came time to 
use ethernet I simply bought one of the blessed cards and followed 
somebody's cookbook and so that was mercifully straight forward.


But at the time at work I had hardware coming out of my ears. My main 
(Encore) machine had four 50Mhz Motorola 88110 processors running BSD 
Unix. So, much like Lars (fantastic dry humor) put it, I mostly used the 
home Linux system to access usenet with uucp. :-)


Pete

On 4/15/23 01:32, Robert Mackie wrote:
Wow, that's cool to read.  When did folks on this list first use 
Linux? Just kind of curious since this is the kind of crowd that might 
have been early adopters.


Rob.

On Fri, Apr 14, 2023 at 7:06 PM Peter Soper via TriEmbed 
 wrote:


The early days of Linux -
https://lwn.net/SubscriberLink/928581/841b747332791ac4/

Pete
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[TriEmbed] Hobby PCB vendor comparison

[Pete soper via TriEmbed]

https://lcamtuf.substack.com/p/comparing-hobby-pcb-vendors


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[TriEmbed] Project Edger meeting FRIDAY 3/31 7-9pm @ Forge & Jitsi

[Pete soper via TriEmbed]

Project Edger Meeting

FRIDAY the 31st we'll have an Edger meeting at the Forge Initiative at 
2172 Salem St., suite 002, Apex, NC. This is the new space above and 
behind the main one (suite 101). Doors will open at 6:30pm for setup and 
the meeting will start at 7pm and finish at 9pm. This will be a hybrid 
meeting with a Jitsi session at https://meet.jit.si/TriEmbed


Meeting agenda:

Hellos, intros
Demo of new major release of the Edger system
Discussion
What's next?
Testing, exercising, applying the new release
We need volunteers!
Opening up to communities beyond the current Signal group
Discussion
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[TriEmbed] Edger meeting postponed due to unexpected problems

[Pete soper via TriEmbed]

Well folks, I have to apologetically let you know that Nick and I could 
not finish preparing for tonight's meeting and we have to postpone. 
There was a catastrophic disk restore problem that left Nick's dev 
environment in tatters and I overestimated my ability to function on the 
worst day of my chemo cycle to pull together an alternative agenda to 
justify the meeting. We'll publish a new meeting date as soon as we can.


Pete


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[TriEmbed] Tomorrow's Edger meeting will be virtual

[Pete soper via TriEmbed]

We have some logistic problems with the meeting being in person as well 
as remote and so it has to be virtual this time at the usual URL:  
https://meet.jit.si/TriEmbed


Sorry for the late notice.

Pete



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[TriEmbed] Project Edger meeting Wednesday evening 3/15 7-9pm @Forge/Jitsi

[Pete soper via TriEmbed]

Project Edger Meeting

Wednesday the 15th we'll have an Edger meeting at the Forge Initiative 
at 2172 Salem St., suite 002, Apex, NC. This is the new space above and 
behind the main one (suite 101). Doors will open at 6:30pm for setup and 
the meeting will start at 7pm and finish at 9pm. This will be a hybrid 
meeting with a Jitsi session at _https://meet.jit.si/TriEmbed_ 



Meeting agenda:

 * Hellos, intros
 * Demo of new major release of the Edger system
 o Discussion
 * What's next?
 o Testing, exercising, applying the new release
 + We need volunteers!
 o Opening up to communities beyond the current Signal group
 o Discussion
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[TriEmbed] what's going on? Re: test message, please ignore

[Pete Soper via TriEmbed]

Jonathan Hunsberger will be taking over hosting of the triembed.org web 
site. We were doing surgery on DNS records last night to separate web 
and email handling so the former can go to Jonathan's server while email 
continues to be handled by the current server. In conjunction with this 
Jonathan has cleaned up the appearance of the forthcoming site and 
created a very welcoming top post, John Wettroth's super archive page 
and the meeting details page will be accessible with a  simpler menu 
arrangement. Jonathan has to do some magic on his server before the 
transition can be completed. We'll sync with any changes to the old site 
before doing the final steps (e.g. any new archive entries John has 
made). I also have a todo involving a few hyperlinks that go to file 
paths on triembed.org outside of Wordpress to pull the files in question 
into the Wordpress database.


The Wordpress configuration will be identical with respect to user 
accounts, so when it's done the move should be completely transparent.


Pete


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[TriEmbed] Project Edger meeting this Wednesday evening 1/18 7-9pm online via Jitsi

[Pete soper via TriEmbed]

Project Edger Meeting

This Wednesday the 18th we'll have an Edger meeting from 7-9pm via a 
Jitsi session at https://meet.jit.si/TriEmbed.


The agenda will be sent out soonest.

Pete


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[TriEmbed] Raspberry Pi autofocus cameras

[Pete Soper via TriEmbed]

https://www.raspberrypi.com/news/new-autofocus-camera-modules/

Pete


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[TriEmbed] Jitsi URL Re: Project Edger meeting this Wednesday evening @ The Forge Initiative and online

[Pete Soper via TriEmbed]

I forgot to mention the Jitsi URL: https://meet.jit.si/TriEmbed

Pete

On 1/2/23 17:48, Pete soper wrote:


Project Edger Meeting

This Wednesday the 4th we'll have an Edger meeting at the Forge 
Initiative at 2172 Salem St., suite 002, Apex, NC. This is the new 
space above and behind the main one (suite 101). Doors will open at 
6:30pm for setup and the meeting will start at 7pm and finish at 9pm. 
This will be a hybrid meeting with a Jitsi session at 
https://meet.jit.si/TriEmbed.


Agenda:

  * Hellos, intros, explanation of long delay
  * Changes to the agenda
  * The state of the project
  o Software
  + Prerequisites: the build and execution environment
  # Bootable thumb drives
  + Demo of existing functionality and limitations
  + Coming features
  o Hardware: new version 2 White Board dev tool
  + Assembly details
  + Kit changes (blue wire)
  o Architecture committee
  *  Discussion
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[TriEmbed] Project Edger meeting this Wednesday evening @ The Forge Initiative and online

[Pete soper via TriEmbed]

Project Edger Meeting

This Wednesday the 4th we'll have an Edger meeting at the Forge 
Initiative at 2172 Salem St., suite 002, Apex, NC. This is the new space 
above and behind the main one (suite 101). Doors will open at 6:30pm for 
setup and the meeting will start at 7pm and finish at 9pm. This will be 
a hybrid meeting with a Jitsi session at https://meet.jit.si/TriEmbed.


Agenda:

 * Hellos, intros, explanation of long delay
 * Changes to the agenda
 * The state of the project
 o Software
 + Prerequisites: the build and execution environment
 # Bootable thumb drives
 + Demo of existing functionality and limitations
 + Coming features
 o Hardware: new version 2 White Board dev tool
 + Assembly details
 + Kit changes (blue wire)
 o Architecture committee
 *   Discussion
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[TriEmbed] Edger project meeting postponed until 12/21

[Pete soper via TriEmbed]

Folks,

   It's very disappointing but circumstances have prevented the 
progress needed to make a meeting tonight profitable. There are a 
handful of things that simply haven't come together as expected, for 
very good reasons. We'll have to look forward to Wednesday the 21st and 
sharing about progress between now and then to rebuild interest. Thank 
you for your patience.


Pete (and Nick)



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[TriEmbed] Fwd: Local FCC & CE Mark EMC Lab

[Pete Soper via TriEmbed]

 Forwarded Message 
Subject:Local FCC & CE Mark EMC Lab
Date:   Tue, 6 Dec 2022 10:30:21 -0800 (PST)
From:   Nicolas Ouimet 
Reply-To:   Nicolas Ouimet 
To: p...@apexprotofactory.com



Hello Pete,


North Carolina has a second FCC and CE Mark registered independent EMC 
test lab. Keystone Compliance, located in Durham, can provide both the 
EMC pre-compliance and certification testing you need. Unlike product 
safety testing, when it comes to EMC testing, a Nationally Recognized 
Test Lab (NRTL) like UL, TUV, SGS, or ETL… is not required.


As an ISO-17025 accredited test lab with Mutual Recognition Agreements 
through our accrediting body, Keystone Compliance’s test reports are 
recognized and accepted in nearly every global market. Whether you need 
to certify a product for North America, Europe, Asia, South America, 
Australia, or Africa, we can provide the EMC testing you need.


Unlike other labs, our scheduling lead times are short, our pricing is 
competitive and we provide engineering guidance and assistance during 
the entire test program.


Request a quote on your next test program and experience why so many 
manufacturers partner with Keystone Compliance for their regulatory 
compliance testing needs.



Sincerely,

Nicolas Ouimet
Business Development

Keystone Compliance
2320 Presidential Dr. Suite 101
Durham, NC 27703
(919) 296-0098


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[TriEmbed] Project Edger meeting this Wednesday evening @ The Forge Initiative and online

[Pete soper via TriEmbed]

Project Edger Meeting

This Wednesday the 7th we'll have an Edger meeting at the Forge 
Initiative at 2172 Salem St., suite 002, Apex, NC. This is the new space 
above and behind the main one (suite 101). Doors will open at 6:30pm for 
setup and the meeting will start at 7pm and finish at 9pm. This will be 
a hybrid meeting with a Jitsi session at https://meet.jit.si/TriEmbed.


Tentative Agenda:

* Hellos, intros
* Changes to the agenda
* Shall we move Jitsi to from "TriEmbed" to "Edger"?
* The state of the project
  * Software
    * Edger software snapshot
  * Feature set
  * Limitations
    * Tool chain and dev enviroment setup
  * The new version 2 White Board dev tool
    * Kits
    * How to use it
  * Repository management
* Discussion


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[TriEmbed] Information for invitiation to TriEmbed

[Pete soper via TriEmbed]

Here is some boilerplate for communicating with potential new TriEmbed 
persons. Just replace "date of next meeting" with the proper date (i.e. 
date of next 2nd Monday).


---
TriEmbed is mainly a meeting every second Monday evening of the month, a 
moderated and archived email list, and a web site (falling into 
disrepair). Since the pandemic meetings are via an A/V and messaging 
system called "Jitsi" that is similar to Zoom but without any login. 
Just point your browser to https://meet.jit.si/TriEmbed at or before 7pm 
on (date of next meeting), give it permission to use your camera and 
mic, enter your name and click on "join meeting". Chrome works better 
than FireFox on Linux. Paul MacDougal puts out an agenda to the email 
list the week before the meeting. If you are interested in presenting 
and/or sharing something specific just send it to the email list for 
discussion and getting it on an agenda. Most meetings have a time at the 
end for a short show and tell. An archive of past meetings (incomplete) 
is here: https://triembed.org/meetings/triembed-presentation-archive . 
To subscribe to the email list go here: 
http://mail.triembed.org/mailman/listinfo/triembed_triembed.org . If you 
aren't recognized or recommended by a list subscriber you'll be asked a 
few friendly questions. The subscription scheme is to avoid spam by 
non-subscribers: it is not for censorship. Messages sent to the list 
(mailto:triembed@triembed.org ) must be no 
larger than 250 kilobytes or they will be held for a publish or 
rejection decision by a moderator (currently Paul or Pete Soper). (The 
triembed.org domain is hosted on a personal domain server with a disc 
storage quota.)


More information is available on the web site: https://TriEmbed.org 
 .

-


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[TriEmbed] Edger (Formerly Quercus) development meeting Wed 10/26 @ The Forge Initiative

[Pete soper via TriEmbed]

Wednesday October 26, 2022 Edger Development Meeting

Setup from 6:30pm, meeting from 7-9pm. The Forge Initiative is at 2172 
Salem St., suite 001, Apex, NC


Agenda

1. Project Briefing
1. Major revision of code

 + More generic
 + More position independent (i.e. on both LAN and WAN)
 + More configurable
 + (Under the covers: complex as all get out!)
 + Short demo

2. Provisional patent application status
3. Rob Mackey briefing about Edger/Forge Initiative relationship
4. November 9 meeting preview

 + Workshop for building new “white boards” to use ESP32 C3
   module and enable an inexpensive JTAG debug interface
 + 12 kits of parts: Espressif ESP32-C3-DEVKIT-02, USB breakout
   for JTAG interface, Renesas ForgeFPGA DIP board, 830 point
   solderless breadboard

5. Demo JTAG with ESP32
6. Discussion
7. Edger Handouts

 + Answers basic questions about the project
 + But incomplete: what do *you*want to see in this?
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[TriEmbed] need document camera and tripod

[Pete Soper via TriEmbed]

My document camera and other tripod seem to have dematerialized. Did I 
lend them out? If somebody has one of each it would be helpful for the 
Forge meeting at 7.


Thanks,
Pete

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[TriEmbed] program for October or November meeting

[Pete Soper via TriEmbed]

I propose giving a talk about using gdb and gdbgui with ESP32 with all 
the steps needed to get started with this inexpensively and how it can 
be a wonderful alternative to print statements. Anybody interested?  It 
could actually be a workshop if attendees can spring for about $13 for 
the cost of a JTAG dongle and install a few bits and bobs before the 
talk. Unfortunately this will be Linux-centric, but Windows users might 
be supported via WSL (Windows Subsystem for LInux) +/- me figuring out 
the niggling details of the USB interface, but only might. My bandwidth 
for stuff is severely limited these days and will only get worse in the 
next few months.


Pete



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[TriEmbed] virtual Quercus (TriEmbed ESP32+FPGA) User Group Meeting 8/31 7-9pm

[Pete soper via TriEmbed]

Note the regular monthly TriEmbed meeting will be the 2nd Monday of the 
month as usual.


This is the kick off meeting of a user group for folks interested in 
learning to make applications with ESP32 MPUs and the Renesas (formerly 
Dialog) line of mixed signal FPGAs.  It will be online with Jitsi at 
https://meet.jit.si/TriEmbed


Quercus User Group Meeting Agenda

1) Introduction Roundtable

2) Intro to Quercus User Group (Dawn/Pete)
Overview of quercus project parts (diagram)
User group Goal #1
- get ourselves (initial user group members) to the point where we can 
change the blink rate on the ESP32/FPGA project boards. Tools include:

- quercus tools (aardvark)
- GoConfigure software (FPGA)
- ESP32
- debugger (JTAG? - for future discussion)
- document our steps so future members can easily get up to speed
- create curated list of external resources

Possible Goal #2 - progress to programming some FPGAs (Cookbook designs, 
or design-your-own)
Possible Goal #3 - provide feedback to quercus designers on limitations, 
feature requests, ease of use, etc


Discussion – what do users want from Quercus User Group & Meetings? 
Comments? Other suggestions?


3) Quick overview of Quercus tool usage (Pete/ Nick)
- demo current tools using an ESP32 program to blink an the LED
- comments on future features in the works (Nick)

4) Hands on with GoConfigure software (Nick/Pete)
- Attendees are invited to download and install in advance of the 
meeting from here: 
https://www.renesas.com/us/en/software-tool/go-configure-software-hub#download



5) Other?
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[TriEmbed] Quercus (ESP32/FPGA community project) update

[Pete soper via TriEmbed]

This is an update on what's happening with the project.

Quercus is a standalone system for developing for and using the 
combination of a WIFI-capable ESP32 and one or more Renesas/Dialog mixed 
signal FPGA chips. The FPGA synthesis tool has a drag and drop GUI that 
involves zero Verilog or VHDL. It has a built in simulator and generates 
files that Quercus can program in place in the user's system for simple 
FPGA applications. These FPGAs are around one to two dollars in single 
quantity, even ones mounted on a DIP board that can plug into a wireless 
breadboard. Quercus is aimed at making FPGAs available to "the rest of 
us" while also creating a development ecosystem to augment the Espressif 
IDF and Arduino IDE.


Jaime Johnsen is facilitating meetings, Carl Nobile and Rob Mackie are 
starting to plan test systems, Dawn Trembath is taking over the Linux 
toolchain build process and when Rob and Paul MacDougal have a Windows 
(Powershell) install working Dawn will take that over too. Nick 
Edgington is getting mdns working to allow Dawn and I to eliminate all 
but one command from the install process (i.e. installit, then point 
browser to localhost:8080 to use the installed/running system). Nick is 
also adding a range of enhancements to Aardvark (the web-based UI) and 
Ant (the ESP32 firmware). I am refactoring the pieces and parts into a 
monorepo at https://github.com/TriEmbed/quercus while meditating about 
the UX for users to add ESP32 application code.


(Well) over the horizon and around a few bends the plan is to implement 
a network-centric implementation with no dependencies on the USB 
connection to the ESP32 (i.e. user apps can own that entirely), over the 
air updates of ESP32 native code, and a means of managing systems from 
anywhere on the Internet, not just with a user's local wireless LAN.


On the hardware front there has been zero dependency on my current 
custom board as it can be functionally replaced with off the shelf ESP32 
boards, a solderless breadboard and one of the Renesas/Dialog "DIP" eval 
boards for their mixed signal FPGA chips. (This is a hint for those of 
you who might be interested in trying the system out: FPGA DIP boards 
are available from us for free). However, decent ESP32 boards have 
become expensive and folks evaluating the system will find a custom 
board easier to use, especially with raw FPGA chips via an Espressif 
adapter that plugs into a socket on the custom board. So another short 
run of 12-15 boards is being planned. Some of these will be given to 
Renesas/Dialog and folks out on the 'Net to generate interest.


Finally, EVERYBODY is welcome to attend meetings. We're especially 
focused on keeping people safe at the face to face meetings. There are 
periodic virtual meetings too. WE NEED HELP.


-Pete

PS Beware ESP32 boards from Amazon. Read the one and two star reviews 
and steer around the boards that have under-powered regulators, bigger 
form factors than advertised, DOA rates, etc. To avoid heartache 
consider boards from Espressif, Digikey, Mouser, Adafruit, and SparkFun. 
Quercus will currently run with most boards supporting WIFI and if it 
can't the install process can almost certainly get a trivial tweak to 
extend support.



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[TriEmbed] Quercus (ESP32+FPGA) project virtual meeting Wednesday (tomorrow) 7-9pm on Jitsi

[Pete soper via TriEmbed]

Tomorrow evening the Quercus project team and any interested parties 
will meet on Jitsi at https://meet.jit.si/TriEmbed


The agenda will be the set of issues in the project repositories here 
(click on a repo, then click "issues"): https://github.com/TriEmbed . 
We'll discuss each issue, how it should be tackled, identify details to 
add at a later date, etc.


We'll first prioritize the issues and then work through the list as far 
as we can go and before the end decide how to proceed with unfinished 
issues (i.e. as "homework" or tabled until a future meeting). Issues 
already assigned to a team member will simply be explained as needed but 
otherwise skipped over.


Pete
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[TriEmbed] Wednesday July 27 7-9pm virtual Quercus community project meeting

[Pete soper via TriEmbed]

Quercus, Latin for oak, is the project name for the ESP32+FPGA community 
project.


There will be a virtual meeting Wednesday the 27th from 7-9pm to discuss 
a range of topics. An agenda will be forthcoming. But we're getting to 
the point where we can fan out tasks related to the project beyond Nick 
and I. But Rob Mackie and Paul Macdougal have already volunteered to 
work on the Windows tool chain installation and Dawn Trembath will be 
taking over the Linux installer. We need people to help with 
documentation of various types (i.e. non-technical as well as 
technical). Stay tuned for more details.


-Pete


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[TriEmbed] Wednesday 7/13 6:30pm: Face to Face Community Project Meeting

[Pete Soper via TriEmbed]

Sorry for the short notice!

On Wednesday,7/13/22 at 6:30pm to 9pm at the Forge Initiative, 2172 N 
Salem St Suite 001, Apex, NC 27523 there will be another meeting of the 
TriEmbed comunity project to create and use development tools coupling 
ESP32 microcontrollers with Dialog mixed signal Field Programmable Gate 
Arrays (FPGAs). This is now called project Quercus (latin for oak).


Best to park on the street or in front of an adjacent building if 
possible so that folks who find the hill hard to walk can park in front 
of the door.


This will follow up from previous meetings to get as many people as 
possible up and running with a simple ESP32/Dialog FPGA combination on a 
solderless breadboard. Bring your laptops and 60 column breadboards and 
ESP32 dev boards and jumper wires if you have them. There will be Dialog 
SLG47004V-DIP FPGAs available at the meeting and at least prebuilt 
boards available.


If time allows the Dialog FPGA drag and drop synthesis tool will 
demonstrated with a projector.


Currently best support is for Linux followed by Windows Subsystem for 
Linux (WSL) but raw Windows /will/ succeed with extra work, Docker 
images are in the dev plan to take the sweat out.


The daily infection rate in Wake county is currently high and there will 
be high risk people at the meeting. Please wear a mask (available at the 
meeting). There will be an ice chest with some soft drinks to enjoy 
outside but you’re invited to bring your favorite.
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[TriEmbed] Wednesday 6/29 6:30pm: Face to Face Community Project Meeting

[Pete soper via TriEmbed]

On Wednesday, 6/29/22 at 6:30pm at the Forge Initiative, 2172 N Salem St 
Suite 001, Apex, NC 27523 there will be another meeting of the TriEmbed 
comunity project to create and use development tools coupling ESP32 
microcontrollers with Dialog mixed signal Field Programmable Gate Arrays 
(FPGAs).


Best to park on the street or in front of an adjacent building if 
possible so that folks who find the hill hard to walk can park in front 
of the door.


This will follow up from last month’s “installathon” format to refine 
tool chain installation and get as many people as possible up and 
running while turning attention to the Dialog Synthesis tool and 
creating and running some simple FPGA applications. There will also be 
demos of things around the corner and related technology (Aaardvark has 
a graphing function now!) A lot of work has gone into the project 
(special thanks to alpha testers Jaime Johnsen, Rob Mackie and Dawn 
Trembath and note taker Glen Smith). Bring your laptop (currently best 
support is for Linux followed by Windows Subsystem for Linux (WSL) but 
raw Windows /will/ succeed with extra work and Docker images are in the 
works to take the sweat out. An ESP32 dev board is highly desirable but 
there will be a few spares at the meeting. The meeting will be 
facilitated by the usual suspects Rob Mackie, Nick Edgington and Pete 
Soper and is scheduled to end at 9pm.


The daily infection rate in Wake county is currently 433 per day and 
there will be high risk people at the meeting. Please wear a mask 
(available at the meeting). There will be an ice chest with some soft 
drinks to enjoy outside but you’re invited to bring your favorite.
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[TriEmbed] Free access to set of PCB CAD libraries via octopart.com

[Pete soper via TriEmbed]

https://connect.octopart.com/e/956342/our-free-cad-model-marketplace/sb8n/36487621?h=VFIUoALTgjkbJSmV2_IVsBKULKYxz2DSWMClK1a6r0k


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[TriEmbed] Chris Siegl has passed away... funeral at St. Andrews Church in Apex on June 24

[Pete soper via TriEmbed]

From: Adelaide Siegl 

Chris Siegl died on June 8 at Duke hospital his funeral is June 24 at 11 am

at st Andrews rc church in Apex on old Raleigh Rd. Please forward to any

one who knew him. He enjoyed your Forge group
Adelaide Siegl , (919) 349-6436
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[TriEmbed] working group meeting will be virtual

[Pete soper via TriEmbed]

We can't meet in person tonight, so will be using Jitsi at 7pm: 
https://meet.jit.si/TriEmbed


-Pete



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[TriEmbed] Community FPGA project working group meeting agenda

[Pete soper via TriEmbed]

The meeting will be 7-9pm this evening at the Abbey Road Tavern and 
Grill, 1195 West Chattham St, Cary, NC 27513 (919) 481 4434.


Agenda:

1. Hellos to new attendees
2. Project briefing
 * Overview
 * ESP32 firmware for flashing FPGA ("Aardvark")
 * Target Hardware (needs a new name)
3. Installathon
 * Dialog Synthesis Tool
 * ESP32 tool chain
 * Eagle for those interested in the hardware
4. Try out Dialog Synthesis Tool
 * Using Aardvark if possible
 * Using the Dialog USB programmer


NOTE The next regular TriEmbed meeting will be  Monday the 9th 7-9pm via 
Jitsi. Details to follow.




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[TriEmbed] thanks & Re: TFT'S from Hamfest

[Pete Soper via TriEmbed]

Hi Trampas,

  It was great to see you subscribed to the list. Welcome!

    First, thank you for the donations of gear for Saturday's 
fundraiser. Together with the stuff I donated Nick and I raised $672 for 
two NC First Robotics teams (PyroTech and TerrorBytes) going to the 
world championship this week in Houston.


   If you want a couple of the Seeed display boards to experiment with 
I can arrange that.


-Pete


On 4/18/22 15:34, Trampas Stern via TriEmbed wrote:

   I think that pretty much sums up Arduino and Arduino libraries in
   general!

   Arduino is great to get something working quickly but Arduino
   libraries in my experience are full of bugs, err 'features'.  Hence
   If you want to create something stable it is best to use arduino
   code and libraries as educational examples.

   If there is an interest in this LCD I will order one and make up a
   sample project and tutorial.  I even have some spare Cortex M0+
   boards (ATSAMD21) I can provide to those interested, so everyone is
   using the same processor.

   Trampas




   On Mon, Apr 18, 2022 at 3:05 PM Pete Soper  wrote:


   Unfortunately, the Adafruit library doesn't  play well with this
   display. Their ILI9341 driver (and/or how their GFX library
   works with it) has changed over the years and in some subtle 
   and this has caused it to stop being compatible. So the first
   URL is useful but the second is problematic.

   -Pete

   On 4/18/22 14:58, Trampas Stern wrote:

   I think this is the Seeed one:
   https://wiki.seeedstudio.com/2.8inch_TFT_Touch_Shield_v2.0/

   It appears to use the *ILI9341 *driver chip.  The ILI9341
   chip is what you are talking to via the SPI interface to
   turn pixels on and off.   Adafruit has some examples and
   tutorials on how to use the ILI9341, note the adafruit
   lcd/board is different, but process should be similar:
   
https://learn.adafruit.com/adafruit-2-8-and-3-2-color-tft-touchscreen-breakout-v2/spi-wiring-and-test


   Here is the ILI9341 datasheet:
   https://cdn-shop.adafruit.com/datasheets/ILI9341.pdf

   I have used the ILI9341 (as well as several other LCD
   controllers) on past projects, so if anyone needs some help
   I will be happy to help.   If there is enough interest I
   would not mind setting up an online(zoom) tutorial session.

   In general if anyone needs help solving hardware or firmware
   problems, please let me know and I will do my best to help.

   Thanks
   Trampas


   On Mon, Apr 18, 2022 at 2:15 PM John Wettroth via TriEmbed
wrote:


   It was the Wiki and was V2.0- brain fart on something
   else I was doing.



   https://wiki.seeedstudio.com/2.8inch_TFT_Touch_Shield_v2.0/





   All worked well for me even with the very latest Arduino
   iDE (.19)





   Regards,
   John M. Wettroth

   E: j...@mindspring.com
   M: (919) 349-9875
   H: (984) 329-5420



   *From:* Pete Soper 
   *Sent:* Monday, April 18, 2022 2:05 PM
   *To:* j...@mindspring.com
   *Subject:* Re: [TriEmbed] TFT'S from Hamfest



   The displays from the hamfest are V2.0 but I'm excited
   this more recent stuff is compatible. Could you point us
   to the web page(s) you found the firmware resources on?
   I've poked around the Seeed github site and don't see
   this. Or is it in their wiki?

   Pete

   On 4/18/22 13:33, John Wettroth via TriEmbed wrote:

   TFT Touch v4.2

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Re: [TriEmbed] TFT'S from Hamfest

[Pete Soper via TriEmbed]

Unfortunately, the Adafruit library doesn't  play well with this 
display. Their ILI9341 driver (and/or how their GFX library works with 
it) has changed over the years and in some subtle  and this has caused 
it to stop being compatible. So the first URL is useful but the second 
is problematic.


-Pete

On 4/18/22 14:58, Trampas Stern wrote:
I think this is the Seeed one: 
https://wiki.seeedstudio.com/2.8inch_TFT_Touch_Shield_v2.0/


It appears to use the *ILI9341 *driver chip.  The ILI9341 chip is what 
you are talking to via the SPI interface to turn pixels on and off.  
 Adafruit has some examples and tutorials on how to use the ILI9341, 
note the adafruit lcd/board is different, but process should be similar:

https://learn.adafruit.com/adafruit-2-8-and-3-2-color-tft-touchscreen-breakout-v2/spi-wiring-and-test

Here is the ILI9341 datasheet: 
https://cdn-shop.adafruit.com/datasheets/ILI9341.pdf


I have used the ILI9341 (as well as several other LCD controllers)  on 
past projects, so if anyone needs some help I will be happy to help.  
 If there is enough interest I would not mind setting up an 
online(zoom) tutorial session.


In general if anyone needs help solving hardware or firmware problems, 
please let me know and I will do my best to help.


Thanks
Trampas


On Mon, Apr 18, 2022 at 2:15 PM John Wettroth via TriEmbed 
 wrote:


It was the Wiki and was V2.0- brain fart on something else I was
doing.

https://wiki.seeedstudio.com/2.8inch_TFT_Touch_Shield_v2.0/

All worked well for me even with the very latest Arduino iDE (.19)

Regards,
John M. Wettroth

E: j...@mindspring.com
M: (919) 349-9875
H:(984) 329-5420

*From:*Pete Soper 
*Sent:* Monday, April 18, 2022 2:05 PM
*To:* j...@mindspring.com
*Subject:* Re: [TriEmbed] TFT'S from Hamfest

The displays from the hamfest are V2.0 but I'm excited this more
recent stuff is compatible. Could you point us to the web page(s)
you found the firmware resources on? I've poked around the Seeed
github site and don't see this. Or is it in their wiki?

Pete

On 4/18/22 13:33, John Wettroth via TriEmbed wrote:

TFT Touch v4.2

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[TriEmbed] update Re: support your local robotics teams for the world championship

[Pete soper via TriEmbed]

Amongst other things there is now a T962 reflow oven for sale tomorrow. 
Keep it coming, and on behalf of the teams: THANK YOU.


-Pete


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[TriEmbed] Eagle frozen at 9.6.2? (and fix on Linux)

[Pete Soper via TriEmbed]

The rate of updates to Eagle has slowed drastically. Based on my 
experience from the other side of the fence I'd say development of this 
has stopped with the focus shifted to the "Eagle+Fusion 360" product 
(that costs almost 4X as much as Eagle by itself).


Anybody seen an official pronouncement on this topic?

By the way, if you're using Eagle with Linux you may suddenly find that 
after a Linux update Eagle comes up with black windows. The fix is to 
mod your desktop launcher exec line something like this:


    Exec=env LIBGL_ALWAYS_SOFTWARE=1 /opt/eagle-9.6.2/eagle

Pete



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[TriEmbed] ESP32+FPGA meeting notes

[Pete Soper via TriEmbed]

https://docs.google.com/document/d/1v57_ZThdvw2mZOPHmUD0n6Kgo6CmU0x3lk0ibehx3dk/edit#heading=h.vb9w9ebg9898


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[TriEmbed] reminder of TriEmbed ESP32+FPGA community project meeting Monday @ 7pm

[Pete Soper via TriEmbed]

This is a reminder of the monthly meeting, Monday night 7-9pm. This will 
be eyes to eyes at Abbey Road Tavern and Grill, 1195 W Chattham St, 
Cary, NC 27513 in a private room with a HEPA-13 filter. 3M N95 masks 
will also be available. There will be multiple demos of the current 
prototypes (surplus/unused examples available to interested parties), 
discussion of the next hardware prototype design and next steps with the 
ESP32. Other topics will naturally spring up!


-Pete



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[TriEmbed] Fwd: FW: Monday meeting

[Pete soper via TriEmbed]

 Forwarded Message 
Subject:FW: Monday meeting
Date:   Sat, 12 Mar 2022 18:01:17 -0500
From:   paulmac...@att.net
To: p...@soper.us



*From:* paulmac...@att.net 
*Sent:* Saturday, March 12, 2022 11:01 AM
*To:* 'triembed@triembed.org' 
*Subject:* Monday meeting

We will have our normal monthly meeting on Monday 3/14/22 at 7:00 pm

Agenda:

- Welcome

- Announcements

- P.O.T.M.

- Software Defined Radio: Hack RF– Kevin McClaning

- FPGA project update

- Show and tell

The plan for this month is to use https://meet.jit.si/TriEmbed

---> Paul
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Re: [TriEmbed] test

[Pete soper via TriEmbed]

There was a problem with the list. Hopefully it's corrected.

On 3/12/22 17:07, Rodney Radford wrote:

dah dah?

On Sat, Mar 12, 2022 at 4:36 PM Pete soper via TriEmbed 
 wrote:


dit dah dit dit


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[TriEmbed] test

[Pete soper via TriEmbed]

dit dah dit dit


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[TriEmbed] CORRECTED URL Re: Community project meeting tomorrow @ 7pm: agenda?

[Pete soper via TriEmbed]

THANKS, Carl.

Everything after *https://meet.jit.si/ *is case sensitive so the correct 
URL is below.




https://meet.jit.si/TriEmbed

~Carl
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[TriEmbed] Community project meeting tomorrow @ 7pm: agenda?

[Pete Soper via TriEmbed]

Would it make sense to start the Google shared document that will become 
the meeting notes but can start off with the agenda?


Here's what's on my mind:

1) More folks engaging, such as:

   a) Design of the 0.80 C3-based prototype

   b) Explaining what we're doing in prose such as in a GitHub repo 
README.md


   c) Using the long awaited Dialog debugger/programmers to exercise 
the Dialog mixed signal FPGAs. I have one uncommitted one for anyone 
that would like to work directly with a couple of SLG47004V-DIP boards 
 
using the Dialog synthesis software called "Designer" here 
).


   d) Helping Nick figure out the missing spell necessary to program 
the Dialog FPGAs with his ESP32 code


   e) Ideas for applications (e.g. your personal desire for a one or 
two chip solution)


   f) Phasing in the 1000 LUT digital FPGA

   g) Catching up with notes for Carl's YouTube videos

   h) Various coding projects related to application ideas

   i) Planning the "big system" with a regular two core ESP32. Perhaps 
this will be a natural evolution from the 0.80 board and its kin?


   j) ???

2)  Review of the current state of the 0.60, 0.70 and 0.80 prototypes

3) Review of the current state of the web-based FPGA programmer

4) ???

The meeting will be with Jitsi at https://meet.jit.si/triembed.

If you'd like to join the working group just send me or Rob Mackie (rob 
dot mackie at gmail) or I an email including your cell phone number 
(we're using Signal to communicate and cell numbers are "identities" vs 
user ids or email addresses, etc).


Pete


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[TriEmbed] Fwd: Webinar Tomorrow: Understanding RISC-V Architecture

[Pete Soper via TriEmbed]

 Forwarded Message 
Subject:Webinar Tomorrow: Understanding RISC-V Architecture
Date:   Tue, 22 Feb 2022 09:05:38 -0600 (CST)
From:   Digi-Key 
Reply-To:   reply...@e.digikey.com
To: em...@sdevcs.com



Digi-Key Electronics
Last Chance for RVfpga: Understanding RISC-V Architecture and 
Implementation on an FPGA


*View Online* 
 



Digi-Key 
 



SEARCH 
 






RVfpga: Understanding RISC-V Architecture and Implementation on an FPGA 
 



This RVfpga webinar covers the foundational knowledge that the next 
generation of Programmers and Engineers need to harness the potential of 
RISC-V.


If you can't attend the live webinar, be sure to still register as we'll 
send you the recording afterward! This webinar will be in English only.


*Tomorrow: Wednesday, February 23, 2022 *
*Starting at: 2:00 PM CST*

*Last Chance to Register! ► 
* 



*Email Signup* 
 



Email Signup 
 



Signing up for Digi-Key’s email program will keep you on the cutting 
edge of the electronics industry by keeping you informed on the newest 
products, application and design ideas, and industry information.
Google Play 
 
	App Store 
 




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**
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Make sure you receive your email from Digi-Key. Add 
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book. If you no longer wish to receive promotional emails, click here 

Re: [TriEmbed] community project: looking for USB chip

[Pete soper via TriEmbed]

Robert Gasiorowski  has graciously donated a board with the needed chip.

-Pete



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[TriEmbed] Fwd: Current State of the Electronics Supply Chain - Webinar

[Pete Soper via TriEmbed]

 Forwarded Message 
Subject:Current State of the Electronics Supply Chain - Webinar
Date:   Mon, 31 Jan 2022 09:46:57 -0600
From:   MacroFab 
Reply-To:   market...@macrofab.com
To: p...@apexprotofactory.com



Current State of the Electronics Supply Chain - Webinar
You're invited to join us on Feb 3, 2022, for an up-to-date view on the 
overall electronics component and materials supply chain
MacroFab logo 
 



Current-State-Webinar-Email-Header 
 




WEBINAR


   The Current State of the Electronics Supply Chain


   Thursday, February 3, 2022

12:00-1:00 pm CT

*Register Now* 
 



Hi Pete,

Every day, we hear bad news about the supply chain for electronics 
materials and components. However, the supply chain is not a static 
system, and while some new issues may appear, many others can improve.


Join us to receive an up-to-date view on the overall electronics 
component and materials supply chain 
, 
which vendors are improving their outcomes, which ones are having 
greater market pressures, and an up-to-date view of the next six months.


In this webinar, you will:

 * Current status of the electronic supply chain: which materials are
   facing new supply pressures, which are improving, and which remain
   challenges
 * How manufacturers and vendors are reacting to the supply chain
   challenges and what we can expect to see in the coming months
 * Projections for material availability and pricing for the near term

*REGISTER NOW* 
 




   View Previous Webinars in Our On Demand Library
   


macrofab-primary-logo-medium-darkbkgd 
 

Re: [TriEmbed] speaker stuff

[Pete Soper via TriEmbed]

Oops. Can't imagine how the Cc got into that email msg to my brother. 
Sorry about that.


Pete

On 1/12/22 11:57, Pete Soper via TriEmbed wrote:


I'm very impressed. Given eight ohm speakers the fuse will open with P 
= I^2R or .5x.5x8 = two watts going into the speaker for long enough 
to heat up the fuse and cause it to open. I'm assuming, however, that 
the fuse operates properly with AC. You should study the datasheet for 
this part to confirm this. If you hit a snag, holler and I'll ask a 
guy who knows a lot about this type of device. But well done you!


On 1/12/22 09:12, David Soper wrote:
I have some NP capacitors in the closet wired into the wires going to 
my kitchen speakers.  It occurred to me that I don't need those if I 
switch my receiver back to crossing over. It was the tweeters I was 
blowing up anyways. I soldered these in this time for the tweeters 
but plan to be careful. I had .75 amp ones in before.


https://www.parts-express.com/TE-Connectivity-Raychem-RXEF050-0.50A-Polyswitch-071-254?quantity=1=TE%20Connectivity%2FRaychem%20RXEF050%200.50A%20Polyswitch_ava_item=071-254_ava_incomeaccount=General_ava_upccode=844632046889_ava_pickup=F_disableshopping=F 
<https://www.parts-express.com/TE-Connectivity-Raychem-RXEF050-0.50A-Polyswitch-071-254?quantity=1=TE%20Connectivity%2FRaychem%20RXEF050%200.50A%20Polyswitch_ava_item=071-254_ava_incomeaccount=General_ava_upccode=844632046889_ava_pickup=F_disableshopping=F>


--
Dave Soper


Mailtrack 
<https://mailtrack.io?utm_source=gmail_medium=signature_campaign=signaturevirality11;> 
	Sender notified by
Mailtrack 
<https://mailtrack.io?utm_source=gmail_medium=signature_campaign=signaturevirality11;> 
	01/12/22, 09:05:51 AM 	




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Re: [TriEmbed] speaker stuff

[Pete Soper via TriEmbed]

I'm very impressed. Given eight ohm speakers the fuse will open with P = 
I^2R or .5x.5x8 = two watts going into the speaker for long enough to 
heat up the fuse and cause it to open. I'm assuming, however, that the 
fuse operates properly with AC. You should study the datasheet for this 
part to confirm this. If you hit a snag, holler and I'll ask a guy who 
knows a lot about this type of device. But well done you!


On 1/12/22 09:12, David Soper wrote:
I have some NP capacitors in the closet wired into the wires going to 
my kitchen speakers.  It occurred to me that I don't need those if I 
switch my receiver back to crossing over. It was the tweeters I was 
blowing up anyways.  I soldered these in this time for the tweeters 
but plan to be careful. I had .75 amp ones in before.


https://www.parts-express.com/TE-Connectivity-Raychem-RXEF050-0.50A-Polyswitch-071-254?quantity=1=TE%20Connectivity%2FRaychem%20RXEF050%200.50A%20Polyswitch_ava_item=071-254_ava_incomeaccount=General_ava_upccode=844632046889_ava_pickup=F_disableshopping=F 



--
Dave Soper


Mailtrack 
 
	Sender notified by
Mailtrack 
 
	01/12/22, 09:05:51 AM 	
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[TriEmbed] EZNEC IS NO LONGER FOR SALE. IT IS FREE

[Pete soper via TriEmbed]

This is an easy to use, interactive superset of NEC, a means of 
simulating electromagnetic fields, especially for designing antennas. 
Super powerful and the gold standard of simulation within amateur radio 
(for those without the other pro tools).


Pete AD4L

== msg from the Potomac Valley Radio Club (PVRC):

Until EZNEC Pro/2+ v. 7.0 is available, you can download EZNEC Pro/2 v. 
6.0 by clicking here:


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[TriEmbed] Thanks

[Pete soper via TriEmbed]

Thanks to Nick Edgington for stirring up the group and sparking the 
community "ESP32+FPGA" project.


Thanks to Rob Mackie for bootstrapping the note taking and capturing the 
bulk of the December working group meeting. Thanks to Paul MacDougal for 
finishing his welding class so he can take the virtual meeting 
management back.


Thanks to all for being such a rich bunch of interesting people!

-Pete



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[TriEmbed] December community project working group meeting notes (w link to November)

[Pete soper via TriEmbed]

Hoping I got this right:

https://docs.google.com/document/d/1ktX2JbQsFjKyKze8ykhS0etCmbW-7UpdzAKlqqGx5ac/edit#heading=h.n4rvx1grrlcj

-Pete


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[TriEmbed] Re JST

[Pete Soper via TriEmbed]

Here is a four position (largest i have). Looks similar.
If it were me i would send JST part # of your connector and the mating one you 
expect in the motor and have them confirm a match.
Pete

 [cid:eu.faircode.email.2891]
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Re: [TriEmbed] Triangle Embedded Interest Group monthly meeting reminder: Monday 12/13/21

[Pete Soper via TriEmbed]

CORRECTION: Monday 12/13

On 12/9/21 13:53, Pete Soper via TriEmbed wrote:
We will have our regular monthly meeting online on Monday 12/13 at 
7:00 pm EDT

To join the meeting point your browser to https://meet.jit.si/TriEmbed

Agenda:

- Welcome new attendees

- Announcements

- Problem/Design Review of the Month (but none scheduled so far)

- Program part I:

    This month’s presentation will be by Nick Edgington of Edgington 
Labs. Nick will share details of Dialog's line of very inexpensive 
mixed signal FPGAs (initial breakout board coming from OSH Park).


- Program part II:

   The TriEmbed Community  Project working group will provide updates 
about their activities and goals for their next meeting on the 20th.


- Show and Tell

--
Perception is not reality - Jim Price

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[TriEmbed] Triangle Embedded Interest Group monthly meeting reminder: Monday 12/13/21

[Pete Soper via TriEmbed]

We will have our regular monthly meeting online on Monday 11/8 at 7:00 
pm EDT

To join the meeting point your browser to https://meet.jit.si/TriEmbed

Agenda:

- Welcome new attendees

- Announcements

- Problem/Design Review of the Month (but none scheduled so far)

- Program part I:

    This month’s presentation will be by Nick Edgington of Edgington 
Labs. Nick will share details of Dialog's line of very inexpensive mixed 
signal FPGAs (initial breakout board coming from OSH Park).


- Program part II:

   The TriEmbed Community  Project working group will provide updates 
about their activities and goals for their next meeting on the 20th.


- Show and Tell
--
The sky isn't the limit, unless it is blue and genuinely infinite

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[TriEmbed] In depth exam of Zepher and big a** FPGA

[Pete Soper via TriEmbed]

https://www.electronicdesign.com/technologies/iot/video/21181856/introduction-to-the-zephyr-rtos?utm_source=EG%20ED%20Connected%20Solutions_medium=email_campaign=CPS211130087_eid=4933F5595389H6I%5Bpull%5D=omeda%7C4933F5595389H6I_enc_id=4933F5595389H6I 



https://endeavor.omeclk.com/portal/wts/ugmc%7C9egvd7aehwg%5EqjC4s3MyfeOzS3Nb0rmYBE-B%7EfY%7CfEeOR0Bs0PxP6w-tpzFzjGr5sa

--
The sky isn't the "limit", unless it is blue and genuinely infinite

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[TriEmbed] Fully open notes frim community board project working group meeting

[Pete Soper via TriEmbed]

https://docs.google.com/document/u/0/d/1i73PtfVsI3SHNMMAXXbZghYp09OHsxfGGIDYFTVABqc/mobilebasic
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[TriEmbed] missing posts to the list

[Pete Soper via TriEmbed]

The root cause of the problem was discovered between screen and chair, 
so the qth.com record for the domain server remains intact.


-Pete



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[TriEmbed] Community board "front ends" and "back ends"

[Pete Soper via TriEmbed]

The community board project will have an ESP32 single board computer 
plugged or soldered onto it as a "daughter board" to use common 
engineering terminology. The ESP32 boards of the type the working group 
has in mind are under $10 from Amazon or cheaper direct from China 
(anybody want to make a cheat sheet/advice column for buying from China 
and/or point to resources? Just do it, as Nike is wont to say. If you 
want a Wordpress user account on the TriEmbed web site, just ask). Note 
that these are "vanilla" ESP32 types as previously mentioned by Josh 
Wyatt, NOT the special types that don't have bluetooth.


The ESP32 is extremely versatile, having two "cores" and this means the 
same thing as when your PC comes with a "two core processor". Sometimes 
the board's memory is empty, sometimes it comes with "MicroPython", a 
stand alone interpreted language system named "Lua", a web-oriented 
system called "node.js" (but in a special, tiny version  cleverly named 
"try.js"), or a "real time operating system" (RTOS) supporting low level 
languages like C++ and C, and _many_ other choices findable via web 
searches. The working group thinks of these as the "front" or 
user-facing end choices of the community development board. One last 
front end on the list is an education-oriented language dreamed up at 
MIT named Scratch. This may not run on the ESP32 yet but Mike Monaghan 
has started scoping out the task of rehosting it to ESP32 and we'll 
figure out the retargeting further down the road.


The "back end" is another techie term but refers to the hardware-facing 
end. This will come in a familiar and unfamiliar flavor. The flavor 
familiar to the hard core sort of techie is called "machine language". 
This language is uttered in words made of strings of ones and zeroes 
called "machine instructions" that the ESP32's two cores "understand" 
and sequences of instructions make up "computer programs" using that 
term in the lowest-level back end context. Virtually nobody has to think 
for one second about machine language instructions: that's the job of 
the people writing or improving one of the front end choices mentioned 
above or a sub-class of those folks called "compiler people", 
"interpreter people", "virtual machine people", but mostly "people 
speaking weird languages sometimes mistaken for English" (there are very 
few left and hopefully all have a sense of humor).


But the community board will also contain one or more wildly cool chips 
called "field programmable gate arrays" or FPGAs. These are strange 
chips that will be made available on daughter boards because soldering 
them ranges from "VERY difficult" to "surely you're joking, mister 
soldering design man".


The front end of the FPGA will be one of a number of computer languages 
much like with the ESP32. But these are not familiar to the vast 
majority of people likely to read these words. Instead these range from 
esoteric to "you want HOW MANY DOLLARS per programmer to use this 
language?!?".


A major goal of the community board project is to hide these unspeakably 
difficult languages so only a fraction of the community has to see or 
think about them (those with very strange definitions of "fun"), but 
with two exceptions. First, for Nick Edgington, hereafter named 
"community board user one", there will have to be some simple C or C++ 
"library functions" that can be thought of as reusable pieces of 
programs that plug into a user's application program on an as-needed 
basis (sort of: experts, don't hate on me). The functions correspond to 
a set of common operations Nick will want doing in the FPGA. If Nick 
wants to get crazy with C++ he might want to play with "overloaded 
operators" but methinks he'd rather discover high voltage in a 
surprising place.


The working group will dream up additional Scratch features that will 
play with the FPGA(s) using mechanisms too weird to mention except to 
say ideally the back end will use a "register transfer language" or RTL 
if you want to say it fast. The RTL will be turned into a flavor of 
magic smoke called a "bit stream" and that is what makes the FPGA mimic 
any imaginable chip that fits with the number of pieces and parts in the 
specific digital or "mixed signal" (both digital and analog) FPGA chip 
package. Ideally once the smoke is in place then when that chip is 
powered up, whether in its daughter board position on the community main 
board (aka "motherboard") or in situ in somebody's Cool Device[tm] then 
the personality of that chip can be in evidence with its operation. That 
is, there will be some means of arranging for the FPGA chip and a few 
other parts to "stand alone" for certain applications.


If you didn't follow any of this please ask questions. The people on 
this list are exceptionally polite and helpful.


More on the ESP32:

https://en.wikipedia.org/wiki/ESP32?wprov=sfla1

More on Scratch:

[TriEmbed] missing postings involving the best ISP in the United States

[Pete Soper via TriEmbed]

For the first time in the 21 years I've been using qth.com as my ISP 
something weird has happened. What I mean is that this exceptionally 
affordable, friendly and amazing ISP has given me 24 hours times 7665 
days of availability up to now. I'm not saying this glitch is their 
fault: it will get figured out. But a messed up draft and a corrected 
version of a posting with subject 'Community board "front ends" and 
"back ends"' was posted to the list and nothing has happened on the 
other end: it hasn't been reflected to the list subscribers, it isn't in 
the archive or the searchable archive, etc, and (what I at first thought 
was involved), it isn't being held for moderation for some reason.


It's about 99.9% likely this is some kind of corner case of cockpit 
error on my part. But in the meantime "please stand by".


Pete

PS Yes, it seems weird that I'd send something when I know the system is 
"down", but this gets it to the two best support guys in the business.




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[TriEmbed] searchable email archive

[Pete Soper via TriEmbed]

Thanks to The Mail Archive project there is a searchable archive of all 
the TriEmbed email here:


https://www.mail-archive.com/triembed@triembed.org/

If the admin change worked correctly this URL will be at the bottom of 
each posting too.



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Re: [TriEmbed] MIT Scratch on an ESP32?

[Pete Soper via TriEmbed]

Way cool. That might be enough to host Scratch.

-Pete

On 11/28/21 17:45, Michael Monaghan via TriEmbed wrote:
Low.js is an ESP implementation of Node.js.  May be worth looking 
into.  I have some ESP32 with 16M flash and 16M psram.


On Sat, Nov 27, 2021, 3:34 PM Jon Wolfe via TriEmbed 
 wrote:


Oh yes, I forgot they have updated it. Originally it was done in
Squeak, and it's been either transpiled or ported to
Javascript/node.js



On Saturday, November 27, 2021 15:28 EST, Pete Soper via TriEmbed
 wrote:

But Mike and I did a search this morning and it seemed to be the
Scratch
we found is implemented with node.js?

-Pete

On 11/27/21 15:27, Pete Soper via TriEmbed wrote:
> The programming paradigm of Scratch in which changes to the
code are
> immediately reflected in program execution is extremely
attractive for
> the community board project. On the fly updating of FPGA bitstreams
> may be a challenge but Mike North and I think it's doable. We're
> currently married to Scratch because it is the lingua franca of
little
> kids.
>
> Pete
>
> On 11/27/21 15:23, Jon Wolfe wrote:
>> Its written in Squeak, which is a derivative language of
SmallTalk.
>>
>> What are the goals, to "Run" something developed in Scratch?
Does it
>> have to be Scratch specifically, or any similar visual programming
>> system? Does it need to be able to run standalone?
>>
>> The "Scractch For Arduino" project used a modified version of
scratch
>> with an Arduino as a "peripheral" that could be treated like a
sensor
>> or actuator from Scratch programs, but everything still ran on
the PC
>> in Scratch.
>>
>> If you want something that is "Scratch-like" but that can generate
>> code that can run standalone on the embedded side, checkout
Blockly,
>> or one of the projects based on that. There is a "Blockly rduino"
>> project that takes blockly programs and generates source. I
wrote a
>> tool several years ago that uses a [very old] version of
blockly and
>> generates Adruino Code targeting Pololu's 3Pi Robot, which is
based
>> on an Arduino Leonardo. https://anibit.com/webtools/3pi/
>>
>> Blockly is web/javascript based, but you can run it offline
using one
>> of the many ways to host offline content, I made a Windows Desktop
>> version of my tool that can directly program an attached arduino,
>> using an embedded instance of Firefox and corrdination between the
>> Javscript and the native decktop code to handle comms with the
>> Arduino software.
>>
>>
>>
>>
>>
>>
>> On Saturday, November 27, 2021 08:28 EST, Pete Soper via TriEmbed
>>  wrote:
>>> What do you all think of the feasibility of the MIT Scratch
system
>>> being
>>> ported to a fat ESP32? By fat I mean one with outboard
memory. I am
>>> clueless about the Scratch implementation. Is it written in
Python by
>>> chance?
>>>
>>> -Pete (on behalf of the community project working group)
>>>
>>>
>>>
>>> ___
>>> Triangle, NC Embedded Computing mailing list
>>>
>>> To post message: TriEmbed@triembed.org
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>>
>
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Re: [TriEmbed] MIT Scratch on an ESP32?

[Pete Soper via TriEmbed]

But Mike and I did a search this morning and it seemed to be the Scratch 
we found is implemented with node.js?


-Pete

On 11/27/21 15:27, Pete Soper via TriEmbed wrote:
The programming paradigm of Scratch in which changes to the code are 
immediately reflected in program execution is extremely attractive for 
the community board project. On the fly updating of FPGA bitstreams 
may be a challenge but Mike North and I think it's doable. We're 
currently married to Scratch because it is the lingua franca of little 
kids.


Pete

On 11/27/21 15:23, Jon Wolfe wrote:

Its written in Squeak, which is a derivative language of SmallTalk.

What are the goals, to "Run" something developed in Scratch? Does it 
have to be Scratch specifically, or any similar visual programming 
system? Does it need to be able to run standalone?


The "Scractch For Arduino" project used a modified version of scratch 
with an Arduino as a "peripheral" that could be treated like a sensor 
or actuator from Scratch programs, but everything still ran on the PC 
in Scratch.


If you want something that is "Scratch-like" but that can generate 
code that can run standalone on the embedded side, checkout Blockly, 
or one of the projects based on that. There is a "Blockly rduino" 
project that takes blockly programs and generates source. I wrote a 
tool several years ago that uses a [very old] version of blockly and 
generates Adruino Code targeting Pololu's 3Pi Robot, which is based 
on an Arduino Leonardo. https://anibit.com/webtools/3pi/


Blockly is web/javascript based, but you can run it offline using one 
of the many ways to host offline content, I made a Windows Desktop 
version of my tool that can directly program an attached arduino, 
using an embedded instance of Firefox and corrdination between the 
Javscript and the native decktop code to handle comms with the 
Arduino software.







On Saturday, November 27, 2021 08:28 EST, Pete Soper via TriEmbed 
 wrote:
What do you all think of the feasibility of the MIT Scratch system 
being

ported to a fat ESP32? By fat I mean one with outboard memory. I am
clueless about the Scratch implementation. Is it written in Python by
chance?

-Pete (on behalf of the community project working group)



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Re: [TriEmbed] MIT Scratch on an ESP32?

[Pete Soper via TriEmbed]

The programming paradigm of Scratch in which changes to the code are 
immediately reflected in program execution is extremely attractive for 
the community board project. On the fly updating of FPGA bitstreams may 
be a challenge but Mike North and I think it's doable. We're currently 
married to Scratch because it is the lingua franca of little kids.


Pete

On 11/27/21 15:23, Jon Wolfe wrote:

Its written in Squeak, which is a derivative language of SmallTalk.

What are the goals, to "Run" something developed in Scratch? Does it 
have to be Scratch specifically, or any similar visual programming 
system? Does it need to be able to run standalone?


The "Scractch For Arduino" project used a modified version of scratch 
with an Arduino as a "peripheral" that could be treated like a sensor 
or actuator from Scratch programs, but everything still ran on the PC 
in Scratch.


If you want something that is "Scratch-like" but that can generate 
code that can run standalone on the embedded side, checkout Blockly, 
or one of the projects based on that. There is a "Blockly rduino" 
project that takes blockly programs and generates source. I wrote a 
tool several years ago that uses a [very old] version of blockly and 
generates Adruino Code targeting Pololu's 3Pi Robot, which is based on 
an Arduino Leonardo. https://anibit.com/webtools/3pi/


Blockly is web/javascript based, but you can run it offline using one 
of the many ways to host offline content, I made a Windows Desktop 
version of my tool that can directly program an attached arduino, 
using an embedded instance of Firefox and corrdination between the 
Javscript and the native decktop code to handle comms with the Arduino 
software.







On Saturday, November 27, 2021 08:28 EST, Pete Soper via TriEmbed 
 wrote:

What do you all think of the feasibility of the MIT Scratch system being
ported to a fat ESP32? By fat I mean one with outboard memory. I am
clueless about the Scratch implementation. Is it written in Python by
chance?

-Pete (on behalf of the community project working group)



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[TriEmbed] FYI: Black Friday through Cyber Monday, the Tindie Sale is now on!

[Pete Soper via TriEmbed]

 Forwarded Message 

Subject:Black Friday through Cyber Monday, the Tindie Sale is now on!
Date:   Fri, 26 Nov 2021 12:03:10 +
From:   Jasmine at Tindie 
Reply-To:   Jasmine at Tindie 
To: 



Black Friday through Cyber Monday, the Tindie Sale is now on!



*TINDIE SALE NOW ON*


 



Now through Cyber Monday, dozens of sellers have opted into the largest 
Tindie Sale 
 
event of the year. All the current offers are on tindie.com/sale 
. 
Check back as more deals go live throughout Black Friday and Cyber Monday.


The sale highlights some of the best maker made devices, breakout boards 
and shields from our community. You will find unique electronics that 
you'll not find on any other sites. And, when you buy on Tindie you're 
supporting a community of independent inventors and tinkerers.


Whether you celebrate this holiday or not, we hope you have a wonderful 
day and look forward to seeing you on Tindie soon!


Shop Tindie Sale 
 









logo 
 




logo 
 
	logo 
 
	logo 
 




/Copyright © 2021 Tindie, All rights reserved./
Tindie 51 West Dayton St. Pasadena, CA 91105
Update your preferences 
 
or unsubscribe 
. 



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[TriEmbed] MIT Scratch on an ESP32?

[Pete Soper via TriEmbed]

What do you all think of the feasibility of the MIT Scratch system being 
ported to a fat ESP32? By fat I mean one with outboard memory. I am 
clueless about the Scratch implementation. Is it written in Python by 
chance?


-Pete (on behalf of the community project working group)



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[TriEmbed] TriEmbed Community project kickoff meeting details TIME SENSITIVE

[Pete Soper via TriEmbed]

This Monday the 22nd from 6pm-9pm will be the first working group 
meeting to discuss the community board project (name TBD. See the first 
32 minutes of the 11/8 presentation at https://triembed.org to get to 
square one about the project)



The location is the Abbey Road Tavern and Grill,  1195 W Chatham St, 
Cary, NC. (PLEASE NOTE ADDRESS CORRECTION)


Dining, chit chat and general setup will be 6-7, formal meeting 7-9.

ALL ARE WELCOME


The following have RSVP'd:

Nick Edgington

Haven Harris

Rob Mackie

Mike North

Kevin Schilf

Pete Soper

Dawn Trembath

Linda Whipker (maybe)

Space is limited in the venue room, but we can accommodate a few more 
people. RSVP ASAP to p...@apexprotofactory.com  or 919-270-9433 (Signal 
preferred).


You can still be in the working group if you can't make this meeting.



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Re: [TriEmbed] Anybody using this with C?

[Pete Soper via TriEmbed]

Yes. Or I2S, UART/USART, CAN, RS485, etc. Or in other cases the 
serialization mechanism allows you to "freeze dry" an object and stash 
it some place and then pull it out and reconstitute it.


I was mainly curious if anybody's been using this already.

-Pete

On 11/20/21 17:45, Carl Nobile wrote:

Do you mean like I2C or SPI?
~Carl

On Sat, Nov 20, 2021 at 5:43 PM Pete Soper  wrote:

Putting objects onto a wire or getting them off a wire.

-Pete

On 11/20/21 17:20, Carl Nobile wrote:

So I look over the Python version of this code. It seems to just
be a way to store any type of data in a JSON object. It's kinda
neat, but you need to write a lot of code around this library. It
doesn't just work by itself. Since it supports a lot of different
languages I'm betting they all are the same in this respect.

Pete, what is your projected use for this library?

~Carl

On Fri, Nov 19, 2021 at 10:30 PM Peter Soper via TriEmbed
 wrote:

This looks pretty good. Anybody have experience with it on a
small C (or C++ w extern C) platform?
Pete

https://amzn.github.io/ion-docs/
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-- 
--

Carl J. Nobile (Software Engineer/API Design)
carl.nob...@gmail.com
--




--
--
Carl J. Nobile (Software Engineer/API Design)
carl.nob...@gmail.com
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Re: [TriEmbed] Anybody using this with C?

[Pete Soper via TriEmbed]

Putting objects onto a wire or getting them off a wire.

-Pete

On 11/20/21 17:20, Carl Nobile wrote:
So I look over the Python version of this code. It seems to just be a 
way to store any type of data in a JSON object. It's kinda neat, but 
you need to write a lot of code around this library. It doesn't just 
work by itself. Since it supports a lot of different languages I'm 
betting they all are the same in this respect.


Pete, what is your projected use for this library?

~Carl

On Fri, Nov 19, 2021 at 10:30 PM Peter Soper via TriEmbed 
 wrote:


This looks pretty good. Anybody have experience with it on a small
C (or C++ w extern C) platform?
Pete

https://amzn.github.io/ion-docs/
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--
--
Carl J. Nobile (Software Engineer/API Design)
carl.nob...@gmail.com
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Re: [TriEmbed] nevermind Re: Best esp32 board w a few constraints

[Pete Soper via TriEmbed]

I think I may be better off making cardboard models  or put energy into 
a white board for the short term.  A daughter board for a 100 pin device 
that needs to solder in place with .1" headers involves 
geometry/mechanical skills where my execution speed is off by orders of 
magnitude.


-Pete

On 11/15/21 14:40, Pete Soper via TriEmbed wrote:


Don't need help, thanks. The v0.01 board will be what it will be. Was 
flirting with dropping out of the fun zone but recovered. :-)


-Pete

On 11/15/21 13:47, Pete Soper via TriEmbed wrote:


Thanks again, Josh. I appreciate it. Got to go with the Adafruit 
huzzah lib 'cause of time. Actually, I'm in trouble and need 
somebody(s)  good with Eagle to swing by and help if possible. I was 
expecting OSH Park to say I could get it to them tomorrow. Another 
mistake.


-Pete

919 270 9433



On 11/15/21 13:39, Josh Wyatt wrote:

Negative on the eagle, I apologize.

But I found these:
https://grabcad.com/library/mh-et-esp32-d1-mini-eagle-1
https://easyeda.com/search?wd=esp+wemos=components 
<https://easyeda.com/search?wd=esp+wemos=components>


Thanks,
Josh

On Mon, Nov 15, 2021 at 1:30 PM Pete Soper  wrote:

Sorry for the confusion. Do you have an Eagle lib for this? Have
to upload to OSH Park by 6pm.

THANKS!

Pete

On 11/15/21 13:21, Josh Wyatt wrote:

The link I shared was for ESP32 boards. What I was trying to
convey (and maybe was miscommunicated, yay email!) is that
these linked ESP32 boards seem to follow a form factor and
convention of prior/historical ESP8266 boards, and therefore
bring some additional consistency. I attached a screenshot of
the page that loads for me, from that Amazon link.

Thanks,
Josh

On Mon, Nov 15, 2021 at 1:16 PM Peter Soper  wrote:

Thanks very much, Josh. Agree with point about pin
conflicts. But did i go to the wrong page? I want to use an
esp32 not 8266. This is for the "0.01" versuon of the
community project board.

Nov 15, 2021 1:11:29 PM Josh Wyatt :

This is sort of an indirect response to your question,
but my experience is that the more complex and
"featured" the dev board, the less consistent. For
example, for boards with onboard 18650 battery holders
and Liion charger, OLED display, and even onboard LEDs
will be on different I/O ports. So my guidance would be
to choose the simplest boards available, which is sort
of antithetical to the "dev board" concept.

I've had pretty good luck with consistency on the
"wemos esp8266 clone" boards, presumably because
the Wemos D1 mini became very established with the
8266; search on amazon for "esp32 d1 mini." Here's a
link:

https://www.amazon.com/Bluetooth-Internet-Development-Functional-Ardu-ino/dp/B08MFCC4SR/?th=1


You mentioned soldering footprint, and that one's not
super friendly; but it should be pretty consistent
since the design tries to adhere to the original
ESP8266 Wemos D1 Mini form factor.

You mentioned Amazon specifically, so I assume you're
prototyping?

Thanks,
Josh

On Mon, Nov 15, 2021 at 11:38 AM Peter Soper via
TriEmbed  wrote:

What esp32 dev board soldering footprint should be
used on a board combining this with other stuff
where it has to be 1) obtainable reliably 2) offer
wifi and BT and 3) be cheap? I see many cheap on
amazon. Are their pinouts de facto standard? And
finally, anybody got an Eagle lib for this board?
Or could you make and send me an .lbr for it?
Thanks in advance.
Pete
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To po

[TriEmbed] nevermind Re: Best esp32 board w a few constraints

[Pete Soper via TriEmbed]

Don't need help, thanks. The v0.01 board will be what it will be. Was 
flirting with dropping out of the fun zone but recovered. :-)


-Pete

On 11/15/21 13:47, Pete Soper via TriEmbed wrote:


Thanks again, Josh. I appreciate it. Got to go with the Adafruit 
huzzah lib 'cause of time. Actually, I'm in trouble and need 
somebody(s)  good with Eagle to swing by and help if possible. I was 
expecting OSH Park to say I could get it to them tomorrow. Another 
mistake.


-Pete

919 270 9433



On 11/15/21 13:39, Josh Wyatt wrote:

Negative on the eagle, I apologize.

But I found these:
https://grabcad.com/library/mh-et-esp32-d1-mini-eagle-1
https://easyeda.com/search?wd=esp+wemos=components 
<https://easyeda.com/search?wd=esp+wemos=components>


Thanks,
Josh

On Mon, Nov 15, 2021 at 1:30 PM Pete Soper  wrote:

Sorry for the confusion. Do you have an Eagle lib for this? Have
to upload to OSH Park by 6pm.

THANKS!

Pete

On 11/15/21 13:21, Josh Wyatt wrote:

The link I shared was for ESP32 boards. What I was trying to
convey (and maybe was miscommunicated, yay email!) is that these
linked ESP32 boards seem to follow a form factor and convention
of prior/historical ESP8266 boards, and therefore bring some
additional consistency. I attached a screenshot of the page that
loads for me, from that Amazon link.

Thanks,
Josh

On Mon, Nov 15, 2021 at 1:16 PM Peter Soper  wrote:

Thanks very much, Josh. Agree with point about pin
conflicts. But did i go to the wrong page? I want to use an
esp32 not 8266. This is for the "0.01" versuon of the
community project board.

Nov 15, 2021 1:11:29 PM Josh Wyatt :

This is sort of an indirect response to your question,
but my experience is that the more complex and
"featured" the dev board, the less consistent. For
example, for boards with onboard 18650 battery holders
and Liion charger, OLED display, and even onboard LEDs
will be on different I/O ports. So my guidance would be
to choose the simplest boards available, which is sort
of antithetical to the "dev board" concept.

I've had pretty good luck with consistency on the "wemos
esp8266 clone" boards, presumably because the Wemos D1
mini became very established with the 8266; search on
amazon for "esp32 d1 mini." Here's a link:

https://www.amazon.com/Bluetooth-Internet-Development-Functional-Ardu-ino/dp/B08MFCC4SR/?th=1


You mentioned soldering footprint, and that one's not
super friendly; but it should be pretty consistent since
the design tries to adhere to the original ESP8266 Wemos
D1 Mini form factor.

You mentioned Amazon specifically, so I assume you're
prototyping?

Thanks,
Josh

On Mon, Nov 15, 2021 at 11:38 AM Peter Soper via
TriEmbed  wrote:

What esp32 dev board soldering footprint should be
used on a board combining this with other stuff
where it has to be 1) obtainable reliably 2) offer
wifi and BT and 3) be cheap? I see many cheap on
amazon. Are their pinouts de facto standard? And
finally, anybody got an Eagle lib for this board? Or
could you make and send me an .lbr for it?
Thanks in advance.
Pete
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[TriEmbed] triembed community board project

[Pete Soper via TriEmbed]

Anybody know of forum(s) for the SIPeed Tang Nano 1K?

-Pete


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Re: [TriEmbed] Best esp32 board w a few constraints

[Pete Soper via TriEmbed]

Thanks again, Josh. I appreciate it. Got to go with the Adafruit huzzah 
lib 'cause of time. Actually, I'm in trouble and need somebody(s)  good 
with Eagle to swing by and help if possible. I was expecting OSH Park to 
say I could get it to them tomorrow. Another mistake.


-Pete

919 270 9433



On 11/15/21 13:39, Josh Wyatt wrote:

Negative on the eagle, I apologize.

But I found these:
https://grabcad.com/library/mh-et-esp32-d1-mini-eagle-1
https://easyeda.com/search?wd=esp+wemos=components 



Thanks,
Josh

On Mon, Nov 15, 2021 at 1:30 PM Pete Soper  wrote:

Sorry for the confusion. Do you have an Eagle lib for this? Have
to upload to OSH Park by 6pm.

THANKS!

Pete

On 11/15/21 13:21, Josh Wyatt wrote:

The link I shared was for ESP32 boards. What I was trying to
convey (and maybe was miscommunicated, yay email!) is that these
linked ESP32 boards seem to follow a form factor and convention
of prior/historical ESP8266 boards, and therefore bring some
additional consistency. I attached a screenshot of the page that
loads for me, from that Amazon link.

Thanks,
Josh

On Mon, Nov 15, 2021 at 1:16 PM Peter Soper  wrote:

Thanks very much, Josh. Agree with point about pin conflicts.
But did i go to the wrong page? I want to use an esp32 not
8266. This is for the "0.01" versuon of the community project
board.

Nov 15, 2021 1:11:29 PM Josh Wyatt :

This is sort of an indirect response to your question,
but my experience is that the more complex and "featured"
the dev board, the less consistent. For example, for
boards with onboard 18650 battery holders and Liion
charger, OLED display, and even onboard LEDs will be on
different I/O ports. So my guidance would be to choose
the simplest boards available, which is sort of
antithetical to the "dev board" concept.

I've had pretty good luck with consistency on the "wemos
esp8266 clone" boards, presumably because the Wemos D1
mini became very established with the 8266; search on
amazon for "esp32 d1 mini." Here's a link:

https://www.amazon.com/Bluetooth-Internet-Development-Functional-Ardu-ino/dp/B08MFCC4SR/?th=1


You mentioned soldering footprint, and that one's not
super friendly; but it should be pretty consistent since
the design tries to adhere to the original ESP8266 Wemos
D1 Mini form factor.

You mentioned Amazon specifically, so I assume you're
prototyping?

Thanks,
Josh

On Mon, Nov 15, 2021 at 11:38 AM Peter Soper via TriEmbed
 wrote:

What esp32 dev board soldering footprint should be
used on a board combining this with other stuff where
it has to be 1) obtainable reliably 2) offer wifi and
BT and 3) be cheap? I see many cheap on amazon. Are
their pinouts de facto standard? And finally, anybody
got an Eagle lib for this board? Or could you make
and send me an .lbr for it?
Thanks in advance.
Pete
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Re: [TriEmbed] hypothetical stock grant for my kingdom for an Eagle library or schematic containing a SIPeed Tang Nano 1K board

[Pete Soper via TriEmbed]

It didn't occur to me until this morning I could have gotten a library 
from SnapEDA!! Blew it. :-) Now we find out if I can get it right the 
first time, assuming nobody else can find this (not that I'm assuming 
SnapEDA will get it right the first time). I've beaten the bushes hard 
but don't know many of these bushes.


On 11/15/21 13:31, Pete Soper via TriEmbed wrote:

Thanks in advance!

Pete



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Re: [TriEmbed] hypothetical stock grant for my kingdom for an Eagle library or schematic containing a SIPeed Tang Nano 1K board

[Pete Soper via TriEmbed]

by schematic i meant .sch file

On 11/15/21 13:31, Pete Soper via TriEmbed wrote:

Thanks in advance!

Pete



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[TriEmbed] hypothetical stock grant for my kingdom for an Eagle library or schematic containing a SIPeed Tang Nano 1K board

[Pete Soper via TriEmbed]

Thanks in advance!

Pete



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Re: [TriEmbed] Best esp32 board w a few constraints

[Pete Soper via TriEmbed]

Sorry for the confusion. Do you have an Eagle lib for this? Have to 
upload to OSH Park by 6pm.


THANKS!

Pete

On 11/15/21 13:21, Josh Wyatt wrote:
The link I shared was for ESP32 boards. What I was trying to convey 
(and maybe was miscommunicated, yay email!) is that these linked ESP32 
boards seem to follow a form factor and convention of prior/historical 
ESP8266 boards, and therefore bring some additional consistency. I 
attached a screenshot of the page that loads for me, from that Amazon 
link.


Thanks,
Josh

On Mon, Nov 15, 2021 at 1:16 PM Peter Soper  wrote:

Thanks very much, Josh. Agree with point about pin conflicts. But
did i go to the wrong page? I want to use an esp32 not 8266. This
is for the "0.01" versuon of the community project board.

Nov 15, 2021 1:11:29 PM Josh Wyatt :

This is sort of an indirect response to your question, but my
experience is that the more complex and "featured" the dev
board, the less consistent. For example, for boards with
onboard 18650 battery holders and Liion charger, OLED display,
and even onboard LEDs will be on different I/O ports. So my
guidance would be to choose the simplest boards available,
which is sort of antithetical to the "dev board" concept.

I've had pretty good luck with consistency on the "wemos
esp8266 clone" boards, presumably because the Wemos D1 mini
became very established with the 8266; search on amazon for
"esp32 d1 mini." Here's a link:

https://www.amazon.com/Bluetooth-Internet-Development-Functional-Ardu-ino/dp/B08MFCC4SR/?th=1


You mentioned soldering footprint, and that one's not super
friendly; but it should be pretty consistent since the design
tries to adhere to the original ESP8266 Wemos D1 Mini form
factor.

You mentioned Amazon specifically, so I assume you're
prototyping?

Thanks,
Josh

On Mon, Nov 15, 2021 at 11:38 AM Peter Soper via TriEmbed
 wrote:

What esp32 dev board soldering footprint should be used on
a board combining this with other stuff where it has to be
1) obtainable reliably 2) offer wifi and BT and 3) be
cheap? I see many cheap on amazon. Are their pinouts de
facto standard? And finally, anybody got an Eagle lib for
this board? Or could you make and send me an .lbr for it?
Thanks in advance.
Pete
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[TriEmbed] Adafruit #3405

[Pete Soper via TriEmbed]

 Crickets, so going with this and can use a daughter board to adapt to 
other boards.




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Re: [TriEmbed] those splatspace smd parts

[Pete Soper via TriEmbed]

That wasn't meant for the list. Sorry about that.

-Pete


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[TriEmbed] those splatspace smd parts

[Pete Soper via TriEmbed]

Hi Kevin,

   Would it be worth trying to sell those parts again? If you're 
interested I'll ping the board to see if the parts are still up there 
and if they'd like to try to turn them into money. Things have somewhat 
turned around after the pandemic crisis but they're still barely above 
water.


Regards,

Pete


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Re: [TriEmbed] How can you tell if something is patented?

[Pete Soper via TriEmbed]

To amplify John's point that "The patent process takes a while, 
generally a couple of years from filing to issuing.", a "couple" in this 
case might be more than two. I don't think it follows that the 2019 
paper must be connected to a patent or not 'cause it's 2021.


The three patents I was involved with went like this. The inventions 
were dreamed up between 2000 and 2004. We published in Software Practice 
and Experience in February, 2005. The patents were granted in 2010, 2011 
and 2013. But maybe this was all before the one year rule? No idea.


Also, Shane Trent is a patent agent. As this group might imagine from 
reading his postings over the years, watching his presentations, 
conversations, etc, his background and experience make for a very potent 
and effective combination of experience and credentials.


Full disclosure: I have worked with Shane in various situations over the 
years.


-Pete

On 11/11/21 05:13, John Wettroth via TriEmbed wrote:


You (or often a patent law firm) do a “patent search”.Its easier than 
ever for individuals these days because the US Patent and Trademark 
Office is online. (USPTO.GOV).The site has a nice query engine and a 
great database of abstracts and the full text and graphics of all 
issued US patents going back pretty far.It’s all free.Its an amazing 
resource to see how things work, etc.


Like most things, there are a few caveats:

 1. Patents are complicated, they’re written in an arcane legalese
that can obfuscate meaning.The real meat of a patent is in the
“claims”, these are especially obtuse but are really the key to
patents.They are written to be very general in order not to
exclude things but it often hides meaning- you have to read very
carefully and read between the lines.
 2. The patent process takes a while, generally a couple of years from
filing to issuing.You will only find issued patents on the USPTO site.
 3. A real “patent search” is looking not just for the exact invention
but various evolutionary steps that led to it- this “prior art” is
really key and can give you a history of how a given process or
idea matured.

That’s enough to get started probably.Patent attorneys are generally a 
friendly lot and are not so expensive.“Registered Agents” are kind of 
the paralegals of the patent world and can be very cost effective.You 
can contact an attorney or an agent and get a bit of free consultation 
that can be very helpful.They do this stuff everyday and what is hard 
for you is simple for them.You might be able to barter with a young 
attorney for their services.


Regards,
John M. Wettroth
(984) 329-5420 (home)
(919) 349-9875 (cell)

*From:*TriEmbed  *On Behalf Of *Charles 
West via TriEmbed

*Sent:* Wednesday, November 10, 2021 10:59 PM
*To:* TriEmbed 
*Subject:* [TriEmbed] How can you tell if something is patented?

Hello,

BIt of a weird question.  Let me know if it's too off topic.

I found a really interesting published paper which details a cheap and 
relatively simple way to produce aerographene (made of graphene, in 
this case with a density around 3x that of air).  I've got some ideas 
of ways to use it for space applications, but I don't want to get sued.


If I may ask, how can you tell if a method outlined in a paper is OK 
to use commercially?


Thanks,

Charlie


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[TriEmbed] Triangle Embedded Interest Group monthly meeting reminder: Monday 11/8

[Pete Soper via TriEmbed]

We will have our regular monthly meeting online on Monday 11/8 at 7:00 
pm EDT

To join the meeting point your browser to https://meet.jit.si/TriEmbed
Use Firefox if possible: the capacity is better with FireFox usage than 
when folks use other browsers


Agenda:

- Welcome

- Announcements

- Program Part I:

        Invitation to the first TriEmbed community project by Nick 
Edgington and Pete Soper


 * Large format (100x160mm at least), easy to solder stand alone
   project board
 * Footprints for popular ESP32 boards/modules supporting C/C++ and
   MicroPython
 * Footprints for various peripherals such as ADC, DAC, LCD display
   and much more TBD (what do *you* want on it?)
 * A Field Programmable Gate Array (FPGA)
 o Learn to create custom digital hardware designs with code
 o Initial use case: high speed data acquisition and processing
 + All that's needed for a custom, high performance
   oscilloscope
 o But capability to match a hypothetical 8ghz mpu for some
   applications
 * Face to face working group meetings will be held in between
   TriEmbed meetings (first on November 22nd at 6:30pm at Abbey
   Road Restaurant and Grill/Cary [ask for "TriEmbed meeting"])

- Program Part II

     An update on the horse riding arena ground leveling device: 
the "Sandboni" by Paul MacDougal


 * Laser level detection
 * Jetson Nano
 * ESP3266

- Show and Tell

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