On 6/10/06, Dan McMahill <[EMAIL PROTECTED]> wrote:
Stuart Brorson wrote:
> At last Thursday's Free Dog meeting John Luciani brought his theremin,
> which he had created in his home workshop. Not only did he design the
> electronic part of the instrument using gEDA/PCB, b
On 6/2/06, Hans Nieuwenhuis <[EMAIL PROTECTED]> wrote:
To respond to John Luciani's post, I think he mentioned this application note:
http://www.chipcon.com/files/AN_040_Folded_Dipole_Antenna_for_CC24XX_1_0.pdf
That's the app-note. It came out a month or two after TI bought Chipcon.
(* jcl *
James,
Just curious --- did you look at the CC2500 radio? The CC2500 can
drive a folded
dipole PCB antenna with no external components. I believe there is a reference
design and gerber files on the TI website.
(* jcl *)
--
http://www.luciani.org
On 6/2/06, James Cotton <[EMAIL PROTECTED]> wrote:
This is loosly based around the CC2420DB reference design and
SoftBaugh DZ1611 boards which I found schematics for floating around.
Another design you may want to look at is
http://www.moteiv.com/products-tmotesky.php
An MSP430, chipcon rad
On 5/27/06, Mike Hansen <[EMAIL PROTECTED]> wrote:
I tried that but as I understand it to make the pad one of the pins it has
to be a line for a SMT part. I couldn't make the line any wider than 6.3mm,
PCB wouldn't let me make it any wider. Is there a setting I have to change
to make the top e
Wow, that sounds really good! And I just got a nice iron griddle a
few months ago. I think I will try to make these. One question
though...What is a "sultana"?
I was wondering that too.
Checkout
http://en.wikipedia.org/wiki/Sultana_(grape)
(* jcl *)
---
http://www.luciani.org
On 5/12/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
> Have you looked at the parts from Allegro?
Not until just now, but I don't see anything that would fit. Which
ones were you thinking of?
When I quickly read the email I saw "two wires" and "high current IO"
and thought
MAXIM port expander
On 5/12/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
The goal is to, essentially, create a high current filtered tri-state
I/O port, using two GPIO pins. Details on the web page:
http://www.delorie.com/house/furnace/pcb2/io_port.html
Have you looked at the parts from Allegro?
http://www.allegro
On 5/6/06, Levente <[EMAIL PROTECTED]> wrote:
Hi All,
I've developed a reflow oven out of a toaster. Currently this is what I can
produce with it.
http://web.interware.hu/lekovacs/cuccok/test.eps
I use a PT100 sensor. If you have any idea on how to mount the sensore to
reduce the
"iner
I started out writing a Perl script and some METAPOST code to produce
dimensioned drawings from footprint files. I then thought it would be
nice to create a single PDF file that contained the dimensioned
drawings and the pages from the manufacturer's component datasheets
used to create the footpri
On 5/6/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
> I think you are mixing up pcbexpress with a different vendor (maybe
> expresspcb?). pcbexpress doesn't mind panelization. Last month I
> did a panel with 10 layouts.
You're right, I was thinking of protoexpress. pcbexpress in my
spreadsheet i
On 5/6/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
> The no touch service is $153 for 3 boards up to 60 square inches
> 6/6/15. I have used them, and they did a good job. They are in the
> US, and take about 4 days.
I misremembered myspreadsheet (I'm in Georgia at the moment).
PCBex - qty 5 $158
On 4/30/06, Karel Kulhavy <[EMAIL PROTECTED]> wrote:
> HP (now Agilent) still has schematics in the service manuals which are
> available in PDF format on their website (free download, no
> registration required).
Schematics of what? Do they have for example Procurve switches?
I should have sa
matic (pages 26,27).
The search seems to be finicky with part numbers.
(* jcl *)
On 4/29/06, Darrell Harmon <[EMAIL PROTECTED]> wrote:
On Sat, Apr 29, 2006 at 08:10:44PM -0400, John Luciani wrote:
> HP (now Agilent) still has schematics in the service manuals which are
> available
On 4/29/06, Stuart Brorson <[EMAIL PROTECTED]> wrote:
Nowadays, I almost never see a schematic -- or any other hard
technical information -- in any published operators manuals, even for
extremely high-tech equipment.
HP (now Agilent) still has schematics in the service manuals which are
availa
On 4/21/06, Levente <[EMAIL PROTECTED]> wrote:
> Hi,
> My task is to add a few, same attribute to a bunch of symbols.
>
> Levente
The script below will output a symbol (STDOUT) consisting of the original symbol
file followed by new attribute lines. The new attribute lines are
defined in the __DAT
On 4/20/06, Tomasz Nowak <[EMAIL PROTECTED]> wrote:
> Hi!
> I'd like to put a simple relay footprint in PCB. Unfortunately, I can't find
> any... Nobody uses relays these days?
>
> The part looks like this:
> http://sirius.cs.put.poznan.pl/~inf66293/relay.jpg
> and is probably on the first photo a
On 4/8/06, John Doty <[EMAIL PROTECTED]> wrote:
>
> On Apr 8, 2006, at 12:30 PM, John Luciani wrote:
>
> > On 4/8/06, John Doty <[EMAIL PROTECTED]> wrote:
> >
> >> Well, I certainly don't think it useful to clutter up schematics with
> >> su
On 4/8/06, John Doty <[EMAIL PROTECTED]> wrote:
> Well, I certainly don't think it useful to clutter up schematics with
> such things. An unconnected pin speaks for itself, doesn't need help.
An unconnected pin could be intentional or a mistake. In Orcad there
was a light gray x that was used to
You may be able to save yourself a little time using EMACS (another advantage of
ASCII file formats).
If you are changing *ALL* of the bf_SOT23 footprints then replace the string
bf_SOT23 with a string that is not a legimate footprint name. Run gsch2pcb
and the original bf_SOT23 footprints will be
find (or build) a gschem symbol
> for a 7400 chip, since gschem only has the individual logic gates as
> symbols. Does one exist?
>
> Thanks!
>
> David Logan
>
> John Luciani wrote:
>
> >You need to set the footprint attribute for each symbol in your schematic.
> &
ext spewed by "gschem --help"?
> * What else?
>
> Stuart
>
>
> >
> > This is a *great* resource. I think it should be someplace with big
> > flashing lights for new users.
> >
> > David Logan
> >
> > John Luciani wrote:
> >
&g
You need to set the footprint attribute for each symbol in your schematic.
http://geda.seul.org/dokuwiki/doku.php?id=geda:pcb_tips#i_want_to_use_pcb_to_do_layout._how_do_i_know_what_value_to_use_for_the_footprint_attribute
(* jcl *)
On 4/4/06, David Logan <[EMAIL PROTECTED]> wrote:
> Does anyone
I not quite sure of your question but ---
gschem will scale the extents of your drawing to fit the size of your paper.
When I begin a schematic I place a title block and border and then only place
parts within the border. Everything on your schematic will
be scaled the same amount since the extent
I would rather see the colors consistent across a layer. All
elements located on a layer would be a similar color and the color
scheme would not change when you tab between sides. For example --- If
the top layer was a red layer --- traces would be red (FF), pads would
be a light red (FF4500)
On 3/29/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
> the magnetics are limited to jacks that put the tab against the pcb, making
> it damn hard to get
> the plug back out again. I think I may be able to use non-integrated
> magnetics and a tab-up jack, though. Or I'll just put a big via under
>
On 3/25/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
>
> > Assuming a resistive load both points are at zero voltage.
>
> Half of them drive relays (furnace), the other half drive small motors
> (zone valves). The relays and motors are all different sizes, too.
>
You may want to test your existing b
On 3/25/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
>
> > Switching at a zero crossing is a good idea in general. You will
> > dissipate less power in your switch and generate less EMI since the
> > di/dt should be much lower.
>
> So, on one of those dual-led AC optos, it would be better to interrupt
On 3/25/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
> Hmmm... would it help if I timed the opto transitions to occur at a
> zero crossing? I was planning on putting a sensor on the AC anyway,
> as an additional clock and power detect, but I could use it to
> syncronize the optos. Remember, no dimm
On 3/25/06, hiroshi <[EMAIL PROTECTED]> wrote:
> How can I change the size of reference number on pcb, such as say U1 to
> smaller font or bigger font size ?
1. Select the objects to be scaled
2. Type :ChangeSize(SelectedObjects,VALUE,MILS_OR_MM)
If VALUE begins with a + or - then the value will
On 3/24/06, Steve Meier <[EMAIL PROTECTED]> wrote:
> Has anyone got a list of "standard drill sizes"
I use the PCB Express finished hole sizes when creating footprints.
The sizes with a * should also match an APCircuits drill size.
hole size (inches)
.0135 filled via
.020* filled via
.025*
.02
On 3/23/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
>
> > The X cap would go across the +5V and ground. You would use two Y caps
> > -- one from +5V to earth ground and the other from ground (or return)
> > to earth ground.
>
> Ok, someone tell me the practical difference between an X cap and a
> gen
You can get some good power supply application information
at Vicor (www.vicr.com).
>> Be sure and address both differential and common mode signals. X
>> and Y caps in line filtering terms. In other words, put some C
>> between the lines and also to ground.
> The switcher only provides +5 and
Last night I created footprints for the Panasonic EVQP0, EVQQ2, and
the EVQP6 SMD switches. I also have the thru-hole Panasonic SVQPA
series. I will be updating my website
(and gedasymbols.org) within the next few weeks.
N.B. --- I believe these footprints are correct but I have not used
them on a
Select the lines you want to change and run the command
:ChangeSize(SelectedLines,-4,mils)
(* jcl *)
On 3/22/06, Philipp Klaus Krause <[EMAIL PROTECTED]> wrote:
> I have a pcb layout where signal lines are 12 mil. I'd like to change
> them all to 8 mil. Is there a fast way to do this or will I
This may answer part of your question
If you assign the hierarchical block a refdes then you can reference
the netnames
with the format REFDES/NETNAME.
For one of my designs I created a sheet that contained an MSP430F169 and some
peripherals. In the toplevel schematic I created a hierarchica
Did you try ---
http://pcb.sourceforge.net/pcb-cvs.html/File-Formats.html#File-Formats
(* jcl *)
On 3/19/06, Phil Taylor <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> Is there a written reference to the pin and pad flags in the PCB footprint
> file format? I'm trying to better the documentation, bu
"#" character.
(* jcl *)
On 3/19/06, hiroshi <[EMAIL PROTECTED]> wrote:
> Is there any comment line symbol to put into footrpint file ?
> I like to put some commnet into footrpint fiole for some future information.
>
> Thanks
>
> Hiroshi
>
>
>
--
http://www.luciani.org
I have not seen any footprint name length problems using gsch2pcb.
Sometimes if there is more than one footprint with the same name you
can get the wrong one (this seems unlikely with a name like
SOD123-70L1W_On_Semiconductor).
I believe the original name of the footprint you are using is
SOD123-3
On 3/14/06, Hyrum K. Wright <[EMAIL PROTECTED]> wrote:
> I've designed a rather small board and would like to tile it so that I
> can produce several of those boards as one job. I've tried a couple of
> tiling programs [1],[2], but neither of them works completely with the
> gerber files generated
It does not appear that the terminals on the SOT-227 were designed to
be attached to a PCB. Isn't there a gap between the tab and body that
would crush if you tighten a screw without a terminal inserted? You
are unlikely to get a lot of thermal conduction through the terminals
which is why the man
In gschem so that my local libraries load before the system libraries
I modify the system-commonrc file. Prior to the line(s) that load the
system libraries I add the line
(load LOCAL_LIB_FILE)
replacing LOCAL_LIB_FILE with the name of your local RC file. In the RC
file you would have a bunch o
When you lock the component it is unselectable using the middle mouse button.
If you do a window select using the left mouse button you can then do
edit -> unlock
(* jcl *)
On 3/9/06, hiroshi <[EMAIL PROTECTED]> wrote:
> hiroshi wrote:
>
> > In gschem, I locked some componet and I need unlock it.
On 3/4/06, Vanessa Dannenberg <[EMAIL PROTECTED]> wrote:
> Personally I think power pins should be made visible, but exactly how they're
> shown is a matter for debate I'm sure. A separate slotted symbol might be a
> good idea, as long as it's clear which package each such symbol goes with.
Maki
On 3/4/06, kmk <[EMAIL PROTECTED]> wrote:
> Nevertheless, I don't see how I could implement this technique with
> gschem. There seems to be no way to let a gschem symbol contain slots
> with different pinout. The same problem arises if a component has slots
> that perform different functions. This
IOn 3/4/06, Levente <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm looking for a footprint for RJ45 connetctor. Maybe I missed, but I can't
> find it among > PCB's internal footpront nor on Luciani's site. Please mail
> me if you have one. I have the > amphenol type of connector
I made a footprint for
The gschem logic symbols seem to have embedded Vcc and GND connections
(at least the ones that I was looking at). Since I am working on a
board that has 3.3V and 5V logic this is a problem.
I created a script that takes a logic symbol with embedded Vcc and GND
nets and creates (1) a new symbol wit
On 3/3/06, Dan McMahill <[EMAIL PROTECTED]> wrote:
> I think what we need is early on in the documentation to have a quick
> and to the point definition of terms. Unfortunately, there is not an
> industry standard among cad tools so such a section (I'm thinking a page
> or less) would be a big he
On 3/3/06, Vanessa Dannenberg <[EMAIL PROTECTED]> wrote:
> Perhaps it would be a good idea to show the user normal everyday words in
> stead of 'refdes' and 'slot' and whatever else. It makes a lot more sense at
> first, and seems less daunting. When I'm confronted with weird terms like
> these,
For mounting holes I add footprints to the PCB. I have a variety of
footprints for mounting hardware at ---
http://www.luciani.org/geda/pcb/pcb-footprint-list.html#Hardware
For changing size I select the obects to change and run the command
ChangeSize(SelectedObjects, VALUE, mils)
replacing V
ECTED]> wrote:
> John Luciani wrote:
>
> > This is in the wiki at ---
>
> Yes, I did follow the Wiki advice. (Actually found this hint in your FAQ
> first). I also tried to put the options into the project file and added
> the use-files switch like the tutorial suggests. This
On 3/1/06, kmk <[EMAIL PROTECTED]> wrote:
> How can I prevent
> this tool to search the systems libs and even the M4 footprints.
>
> Any additional hints?
>
> ---<(kaimartin)>---
> --
> Kai-Martin Knaak
> [EMAIL PROTECTED]
> Blog: http://lilalaser.dyndns.org/blog
>
>
>
This is in the wiki at ---
It can be useful to have the feature requests on the list (maybe not
at the rate of
12/hour).
A number of times the reply to a feature request is that the
capability is already
there and here is how you do it.
(* jcl *)
On 2/28/06, Peter Brett <[EMAIL PROTECTED]> wrote:
> On Tuesday 28 February
I believe the reference point for the DIP8 is at the center of the
body. To place
the center of the body and each pin on grid you would need a maximum grid
spacing of 50mil.
I usually place components with a grid of 25mils or 50mils and route
with a grid of 10mils
or 5mils.
(* jcl *)
|
On 2/2
If I have a lot of tracks to delete what I usually do is ---
1. turn off the pads and silkscreen and all copper layers
that you do not want to change
2. select a group of tracks (mouse-2)
3. Ctrl-Shift-X
4. ESC
If you only have a few then I would reduce the grid size
like you suggest.
Also,
Your sarcasm also wastes time --- you have to type
it and others may read it.
If you were concerned with actually solving
problems you would ---
1. SUCCINCTLY state what the problem is.
2. If you have an idea to fix the problem
SUCCINCTLY suggest it.
No smarmy or sarcastic words are required
All of it.
(* jcl *)
On 2/26/06, Marc Price <[EMAIL PROTECTED]> wrote:
> John
>
> res-carbon-film-Panasonic-ERD-0W25--P10.16-mm
>
> im looking at this what should i write for the footprint all of it or
> just a part of it
>
> Marc :-P
>
--
http://www.luciani.org
This may be an easier way for you to do footprints ---
1. make a directory named footprints in your home directory
2. Download the file
http://www.luciani.org/geda/pcb/pcb-symbols-jcl_2006-1-25.gz
to the footprints directory
3. tar zxf pcb-symbols-jcl_2006-1-25.gz
4. For each component in yo
footprint page . http://www.luciani.org/geda/pcb/pcb-footprint-list.html
geda page .. http://www.luciani.org/geda/geda-index.html
(* jcl *)
On 2/25/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
>
> (re: gedasymbols.org home page)
> > It looks like about 30 minutes work would result in con
Here are two ways to this ---
1. Use gattrib
2. Place a single resistor and set its footprint attribute.
Do edit->copy to place copies of the updated resistor
(* jcl *)
On 2/25/06, Marc Price <[EMAIL PROTECTED]> wrote:
> Ok if i have 30 resistors in an application and i want to add a
>
On 2/24/06, John Doty <[EMAIL PROTECTED]> wrote:
> When we were designing circuits for NASA's Chandra X-ray observatory,
> Tye Brady (then at MIT, now at Draper lab) judged that the Viewlogic
> symbols were scaled such that drawing within a B sheet envelope
> yielded the best balance between eyest
On 2/24/06, joeft <[EMAIL PROTECTED]> wrote:
> You hit on something that has annoyed me in the past - that the text
> doesn't always seem to line up nicely. My vote would be to use a
> completely non-proportional font in gschem. At least for things like
> pin names, pin numbers, attributes. Gen
Everyone on this list was a gEDA newbie.
If you follow the Bill Wilson tutorial you will be able to create a
PCB within a few hours.
If the document influences the one you are going write then cite it
as a reference.
(* jcl *)
On 2/24/06, Marc Price <[EMAIL PROTECTED]> wrote:
> Oh Well if a new
What kind of components are using? Are you using thru-hole or SMD?
The voltage, current and power rating of the components affect the
component size and the footprint.
I have a variety of footprints at
http://www.luciani.org/geda/pcb/pcb-footprint-list.html
(* jcl *)
On 2/24/06, Marc Price <[EM
You need to set the footprint attribute for each component in your schematic.
You can do this in the schematic (the same way you set refdes) or use gattrib to
view the component attributes in a spreadsheet format.
(* jcl *)
On 2/24/06, Marc Price <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] ~/
Since your original email was an hour ago you could have finished the
Bill Wilson
tutorial in the time you were waiting for the various replies :-) The
tutorial is
an easy read and excellent start.
Assuming your install is correct and you have set the footprint
attributes for all of the components
Did you search for schem-print.scm or gschem-print.scm?
Below is the gschem-print.scm that I have installed ---
(* jcl *)
--
http://www.luciani.org
cut here
(paper-size 11.5 8.5)
(load (string-append gedadatarc "/gschem-lightbg")) ; light backgr
On 2/24/06, Dan McMahill <[EMAIL PROTECTED]> wrote:
>
> I'd add a "-p" to that gscme command line. That will cause the windows
> to autoplace themselves so the script can run without you manually
> placing windows. This should override any sort of windowmanager policy
> on window placement.
>
> -
George,
The script below (which I name gschem-print) prints schematic
files from the command line. Replace the string GEDA_SCHEME_DIR
with the name of your gEDA scheme directory.
#!/bin/bash
for name in $*
do
base="${name%.*}"
gschem -o$base.ps -sGEDA_SCHEME_DIR/gschem-print.scm $base.sch
l
> The bar's significance stems from boolean algebra, and carries no
> intrinsic meaning of intent. I think, as with self-documenting
> software, self-documenting hardware designs are more important.
> Signals should describe what they do as much as possible.
For net names I agree with this approa
ce.
You would still fail to meet the intent of the license.
> Or John could you licence your collection under GFDL?
No.
(* jcl *)
On 2/20/06, Karel Kulhavy <[EMAIL PROTECTED]> wrote:
> On Sun, Feb 19, 2006 at 09:47:13PM -0500, John Luciani wrote:
> > Karel,
> >
> >
On 2/19/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
>
> > * make the pins 100 units long.
>
> Isn't the standard 300 mils (3 grid steps) long?
The standard is 300 mils. My preference is to make smaller symbols.
> How do you place pin numbers when there's an inversion bubble?
I usually do not use
For the inverted signals I prefix the pin name with a forward
slash. A reset line that is negative true could be labeled "/RST".
Here is a quick summary of the way I usually make symbols
(assuming a grid box is 100x100 units) ---
* make the pins 100 units long.
For rectangular parts
* For lef
Karel,
Distribution is a usage that is restricted. The restriction is
that the distribution be performed without fee.
To meet the intent of the version 0.1 license the distribution would have
to be released using a license with the same restriction.
You are correct that this should be stated clea
Panelizing is very easy to do just using PCB. After I get my
individual layouts complete I make a panel layout that contains each
of the individual layouts. Creating the compound layout is typically a
five minute job.
Since I cut the boards on a bandsaw or sometimes with a hacksaw I usually leave
How well does Varicad work?
(* jcl *)
On 2/11/06, Marvin Dickens <[EMAIL PROTECTED]> wrote:
> Stuart Brorson wrote:
> >
> > Anyway, the biggest missing piece to the puzzle here is good
> > mechanical 3D CAD.
> >
> > Stuart
> >
> Sigh - We gave up and purchased 2 Varicad seats. Costly, but it reti
That symbol does not have a hole. The #10 and 1/4" symbols do not have
holes only
a silkscreen cross to be used as a manual drill guide. Here is the
note from the hardware section of my webpage ---
The symbols for the #10 and 1/4" screws have a copper cross in the
center. The copper cross i
I wrote a script that arranges copies of a schematic and pcb layout
in a matrix (and renumbers the refdes's). My documentation contains
an example for creating and electronic load (current sink).
The documentation and script is at
http://www.luciani.org/geda/util/matrix.html
(* jcl *)
On 2/7
A re-do of the board seems like a fair resolution.
(* jcl *)
On 2/2/06, Randall Nortman <[EMAIL PROTECTED]> wrote:
> On Mon, Jan 30, 2006 at 12:12:03PM -0500, Stuart Brorson wrote:
> [...]
> > > I will give them the details on my problem and see what they say.
> > > It's hard to imagine what sort
Both of the features you described work the way that I would expect.
(* jcl *)
On 1/19/06, DJ Delorie <[EMAIL PROTECTED]> wrote:
>
> Ok, two features I just checked in that I'd like some feedback on.
>
> 1. If you're looking at the component side of the board, and the
>component layer is the
For whichever valve you choose you need to verify that the material in contact
with the liquids is non-toxic for food preparation.
(* jcl *)
On 1/19/06, Peter L. Berghold <[EMAIL PROTECTED]> wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Steve Meier wrote:
> > How about lawn irigati
You could look at the stainless-steel solenoid valves at
http://www.mcmaster.com
(* jcl *)
On 1/19/06, Peter L. Berghold <[EMAIL PROTECTED]> wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> I'm in the process of building a home brewery. Anybody out there know
> of a source of solenoi
On 1/18/06, Eric Daine <[EMAIL PROTECTED]> wrote:
> I was not aware that there was
> another line
> of microcontrollers that worked with GCC,
I have used the Freescale Coldfire 5206e, 68HC11 and the TI MSP430 with
GCC.
--
http://www.luciani.org
On 1/18/06, Stuart Brorson <[EMAIL PROTECTED]> wrote:
> One clue: When I stress or flex a failing board in the test system, I
> can often make it work (until I release the board). This suggests
> cracked vias, ripped internal traces, or SMT passives with
> microcracks. All of these are hard to
My mistake.
I forgot about the passive pintype.
Thanks.
(* jcl *)
On 1/10/06, John Doty <[EMAIL PROTECTED]> wrote:
>
> On Jan 10, 2006, at 12:04 PM, John Luciani wrote:
>
> > Since the terminals of passive components (resistors, capacitors,
> > inductors)
> > a
No.
The diode can perform a useful function with its pins connected to power,
inputs or outputs.
(* jcl *)
On 1/10/06, Marc <[EMAIL PROTECTED]> wrote:
> would this be different for diodes as they function in one direction
>
> Marc :)
>
--
http://www.luciani.org
Since the terminals of passive components (resistors, capacitors, inductors)
are connected to power pins, input pins and output pins you should set the
pintype to input.
(* jcl *)
On 1/10/06, Marc <[EMAIL PROTECTED]> wrote:
> what do i add for things like footprint and pintype for capacitors &
>
Pins need to begin on a 100mil grid point.
http://www.geda.seul.org/docs/current/symbols/node3.html
(* jcl *)
On 1/8/06, Marc <[EMAIL PROTECTED]> wrote:
> Im at zero errors with the LM741 ive built new symbol but the
> connections wont join up to the pins when i place the part is there a
> cert
It sounds like gsch2pcb is not finding the footprints. There is information
about setting footprint paths at:
http://geda.seul.org/dokuwiki/doku.php?id=geda:pcb_tips
(* jcl *)
On 1/6/06, Peter L. Berghold <[EMAIL PROTECTED]> wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> OK,
>
> I'
> The first I'd like to ask is: just how do you find out what the list of
> footprints are and what they map to? For instance: if I am inserting an
> oscillator how do I specify its foot print. It will fit in a 14 pin DIP
> wire wrap socket but only uses 4 pins
You specify the footprint by e
One difference is that the CC1100 is 0.5mm pitch and the CC1070 is 0.65mm pitch.
I made QFN-50P-400W-400L-20N-240WT-240LT__Chipcon
for the Chipcon 2500 radio which has a 0.5mm pitch.
> BTW: why don't you use /usr/share/pcb/m4/qfn.inc macros?
Since I am more familar with Perl than m4 I created a P
QLP (quad leadless package) may be similiar enough to the QFN (quad
flat no-leads) footprints that I have created.
I have a couple of QFN packages (including a 20 pin device) at
http://www.luciani.org/geda/pcb/pcb-footprint-list.html#QFN
(* jcl *)
On 1/3/06, Matthias Wenzel <[EMAIL PROTECTED]
You are correct it is a diameter.
The comment is wrong but the field name was correct.
I will make this correction.
Thanks.
(* jcl *)
On 12/12/05, Dominique Michel <[EMAIL PROTECTED]> wrote:
> Thank you very much,
>
> I have just try the script with a noval socket and it worked very well.
>
>
* Added footprints for the Molex 39351 header plug assemblies
* Added an example script that creates a tube socket.
The socket has two mounting tabs and pins placed
in a circular pattern.
* In the "not-quite-ready" section I added the write-up
I created for the December Free-Dog meeting ---
Below is the footprint for a Belton VT8 tube socket and the Perl script
that created it (my perl library Pcb_8 is required). You should be
able to generate
similar footprints by updating the data section. I will add the script
to my website in a few weeks.
NB: This was a quick hack with numerous i
On 12/6/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> The printed output files of back.ps
> and front.ps seem to be all right. Is this going to give me correct gerber
> files, or am I going to mess something up?
You may want to use gerbv to verify the gerber files directly.
(* jcl *)
--
h
On 12/6/05, Stuart Brorson <[EMAIL PROTECTED]> wrote:
> I don't know if any pre-made holes exist.
http://www.luciani.org/geda/pcb/pcb-footprint-list.html#Hardware
--
http://www.luciani.org
if the holes are electrically connected I would place a component
in the schematic (as Stuart suggests) otherwise I just place them in the
PCB.
For mounting hardware I have created a series of footprint for
standoffs and nuts with
washers. I usually load these with file -> load element-data to pas
Stuart beat me to this.
> the advantage that when newbies Google on gpcb, they will get hits about the
> program
> itself, instead of 1e6 links to general info about PCB manufacture.
a prefix or suffix to the name 'PCB' would be very useful in
performing searchs.
(* jcl *)
--
http://www.lucian
>
> What footprints do people recommend for resistors, capacitors, etc?
>
>
> Don Reid
>
Assuming that you are requesting thru-hole components ---
I have a couple of common resistor footprints at
http://www.luciani.org/geda/pcb/pcb-footprint-list.html#res
and some ceramic capacitors at
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