Definitely sounds like the 1-Wire bus is getting shorted out.
> On Mar 1, 2016, at 3:56 PM, Peter Hollenbeck wrote:
>
> I must have something else wrong. When I connect the DS18B20 without a
> resistor the MS-TV disappears.
>
> Odd that it worked last night - with a 5K resistor.
> I do not kno
I was about to say basically what Michael said.
If the DS18B20 is using parasitic power then you can’t do the read command or
it can cause the T convert to fail.
Eric
> On Oct 6, 2014, at 4:02 PM, Colin Reese wrote:
>
> Hello all,
>
> Here is an interesting wrinkle that is not really owfs, b
Colin,
Unless the devices are externally powered that won’t work reliably. For
instance a DS19S20 requires a strong pull-up during the entire conversion time
so if you are issuing more Match ROM commands during the conversion time the
bus activity may keep the DS18S20 from completing the conver
Colin,
This sounds very strange, a 5 meter cable is not that long and should not be
causing any problems.
You say that you have tried a different PI and LinkUSB but have you tried a
different power supply? Also do you have a different type of 1-Wire master
besides the LinkUSB that you could tr
Colin,
Are your devices truly connected in series or are there some stubs?
If you have a power injector in the system I’m not sure why the LinkUSB light
would dim at all.
Eric
On Jan 27, 2014, at 10:46 AM, Colin Tinker wrote:
> Jim
>
> All my cables are EIA 568B Some I made some I bought.
are always useful but
> cost/benefit is usually the limiting factor.
>
> Cheers
> Mick
>
> On 12/09/13 23:09, Eric Vickery wrote:
>> I am looking at developing a multi-meter of sorts I want to get some input
>> from the group.
>> What voltage ranges would be most
I am looking at developing a multi-meter of sorts I want to get some input from
the group.
What voltage ranges would be most useful to you?
What current ranges would be most useful to you?
Do you have a need for a 4-20ma reader?
How many channels would you like to see?
Any other ideas you might ha
I don't know if this is the issue but unless you have a very old humidity board
then you should be getting the readings from the HIH4000 directory. The HIH3600
and HIH4000 sensors use slightly different formula for calculating the humidity.
Eric
On Jul 25, 2013, at 10:32 AM, Rick Bolen(gm) wro
Another way to do it is to use our 8 Channel I/O and a wall wart to detect when
power is lost.
Eric
www.hobbyboards.com
On 12/4/2012 11:08 AM, Silvano Gai wrote:
> I need to sense the presence of AC power (110 Volts) in six different
> places.
> Any 1Wire sensor recommended?
> Power detection (o
There is a way for slaves to announce their presence on the bus by providing a
presence pulse when
they are powered up. I'm not sure if all slaves to this or just some (or all)
of the iButtons. Also
I don't know which masters or software supports this, it is mainly used for
things like door loc
On 6/16/2012 3:27 PM, Eloy Paris wrote:
> Hi Phil,
>
> On 06/16/2012 07:43 AM, Phil White wrote:
>
>> On 13 June 2012 02:01, Eloy Paris wrote:
>>
>>> All 1-Wire devices have this "presence pulse" feature that you mention
>>> -- that's a fundamental part of the protocol, and all slave devices ne
Even if they are powered you have to make sure you are waiting long enough
before taking a reading
after a temperature convert. At 12bits the DS18B20 takes as long as the DS18S20
(around 750mS).
On 2/29/2012 8:12 PM, Roberto Spadim wrote:
> yes hehe my is the second, i connect 5v, 0v and owbus
It is the voltage regulator heating up the board, it usually stays at a
consistent amount so you can
subtract the "offset" and get the correct temperature. Also the DS2438 has self
heating issues so I
would not use the temperature from the DS2438. We offer the combined board but
we recommend u
On Mon, Feb 20, 2012 at 4:44 PM, Colin
Law <clan...@googlemail.com>
wrote:
On 20 February 2012 21:33, Eric Vickery <eric...@hobby-boards.com>
wrote:
> I already use VMWare on this machine so I figured I
would use
I already use VMWare on this machine so I figured I would use what I already
have.
On 2/20/2012 2:34 PM, Colin Law wrote:
> On 20 February 2012 20:16, Eric Vickery wrote:
>> I want to setup OWFS under VMware and I want to know what is the best distro
>> to use for OWFS.
I want to setup OWFS under VMware and I want to know what is the best distro to
use for OWFS.
Thanks,
Eric
--
Try before you buy = See our experts in action!
The most comprehensive online learning library for Microsoft d
We
(http://www.hobby-boards.com/catalog/product_info.php?cPath=23&products_id=1561)
have a few Hub
left in stock.
Eric
Hobby Boards
On 2/8/2012 4:49 PM, Mick Sulley wrote:
> Having decided that I need to add a hub to my system I am having great
> trouble finding one.
>
> I saw the AAG unit on
Unfortunately not. Last time I tried to order some the lead time was something
like 8 months.
On 1/25/2012 5:02 PM, Marc MERLIN wrote:
> On Wed, Jan 25, 2012 at 01:47:28PM -0600, Eric Vickery wrote:
>> We will be coming out with a replacement for our Hub. It is in the design
>
We will be coming out with a replacement for our Hub. It is in the
design stage. There are a few other things that have to get
completed before it gets much attention but it is a high priority.
Eric
www.hobbyboards.com
On 1/25/2012 12:36 PM, Mark Richards wr
2net is a widely available utility that seems to support the
Xport products among others.
Paul Alfille
On Wed, Jan 4, 2012 at 4:34 PM, Eric
Vickery <eric...@hobby-boards.com>
wrote:
This is not exactly directly related t
This is not exactly directly related to OWFS but this is the best Linux list I
am on.
I am thinking about designing a new device 1-Wire Hub that has either a USB or
Ethernet interface
and I am wondering if Linux has built-in drivers for Serial<->USB and/or
Serial<->Ethernet. That way
I could
Are you trying to read humidity and pressure from the same device? If so then
it won't work. The
Barometer and the Humidity devices use the same 1-Wire chip (DS2438) but none
of our devices have
both pressure and humidity on the same device.
Eric
www.hobby-boards.com
On 10/18/2011 4:53 PM, pw
If we (Hobby Boards) were to come out with a new 1-Wire LCD module what
features would everyone like to see?
Let me know if this is not an appropriate post.
Thanks,
Eric
--
Oracle to DB2 Conversion Guide: Learn learn ab
iButtonLink uses a wiring scheme that is compatible with ours but AAG
doesn't. They only use RJ11 connectors and I don't think all of their
products have the same pinout.
Eric
www.hobby-boards.com
Paul Alfille wrote:
As far a I can tell, Maxim doesn't make a product with
RJ45. All their kits
Gregg,
There shouldn't be any problem with this. As long as the SSR can provide
a pulse that goes from +5v to 0v it should work fine our Lightning
Detector counts pulses from an opto-isolator.
Eric
www.hobby-boards.com
Gregg Levine wrote:
> Hello!
> Working my way through a new project has cre
We have the DS9097 in stock right now. We will have the DS9094 back in
stock in the first week of October.
Eric
www.hobby-boards.com
suman- wrote:
> Does anyone know where can I get a few more DS9097 and DS9490 adapters?
>
> I am trying to buy them turns out to be very hard to find them
John,
It sounds like the DS2760 is in sleep mode. You can look at the thread
here http://www.weathertoys.net/phpBB2/viewtopic.php?t=70. It talks
about our Moisture Meter but is the same for any DS2760 based device.
Hope that helps.
Eric
www.hobby-boards.com
[EMAIL PROTECTED] wrote:
> So far,
Here is the Hobby Boards LCD Driver schematic
http://www.hobby-boards.com/catalog/links/lcd2-r1/LCD%20Driver%20v2.0%20Schematic.pdf
Eric
www.hobby-boards.com
Gregg C Levine wrote:
> Hello!
> Paul, everyone, can all of you describe, or better yet, point me to the
> schematic for the Hobby Boards
the extreme high or low end to make it easier to tell when an
error
occurred.
Eric
Mark Richards wrote:
> You can't.
>
> So instead if I see an 85C result, I issue the fix code and read again.
>
> It's inconsequential in the scheme of things.
>
> Eric Vickery
An 85 is returned if the temperature conversion had a problem or is not
finished
yet. The problem is how can you tell when it is a good reading of 85.
Eric
Darryl wrote:
> On 12/5/06, Mark Richards <[EMAIL PROTECTED]> wrote:
>> Dallas had an issue with 18B20, 18S20, 18B20-PAR, and 18S20-PAR dev
I have been toying with the idea of doing something similar for my devices.
Kind
of an extension of the tagging "standard" that Dallas came up with. I have a
few
devices now that could use it and some on the drawing board that will really
need something like this to make them easier to use. Th
Make sure that you have your wiring correct since the pinout of the 4x40 is
different than all the others 2x40 or smaller.
Eric
[EMAIL PROTECTED] wrote:
> I seem to be having similar troubles too. I'm using a hobby-boards
> driver on a 4x40 LC4857FG-SNYLV (which is essentially two 2x40 LCD's
BTW I agree with what David wrote and as always he did a much much
better job of explaining than I did.
Eric Vickery
www.hobby-boards.com
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Gregg Levine
Sent: Sunday, August 06, 2006 9:00 PM
To: owfs-devel
You just have to watch running 1-Wire and anything else in the same
cable. The 1-Wire protocol can be very touchy, it was originally
designed for a 1-Wire slave to be a few inches away from the master not
many feet. That being said it can be done but there are so many factors
that it is hard to say
Title: Message
That
is a really strange reference design and I hadn't see that one before, it
doesn't make any sense to tie D7 to ground. All of the other 1-Wire designs I
have seen are 4 bit, including AAGs and the one in the data sheet for the
DS2408. Since there are only 8 I/O lines and R
I think that would be pretty hard in 1-Wire. I'm not sure the 1-Wire
data stream would be consistent enough for IR communications. I think
using something like a PIC would be a better route, plus you can get
some PICs for a good bit cheaper than the DS2406.
My $0.02
Eric
-Original Message---
The LCD Driver has solder pads for 3 switch inputs so it should work,
but I have not had any reports of people using it that way. You would
just need to make sure that what you are going to sense is in the range
of 0-5v DC.
Eric
www.hobby-boards.com
-Original Message-
From: [EMAIL PROTECT
If you only need 1 or 2 channels the DS2406 also has activity latches.
Eric
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paul
Alfille
Sent: Saturday, June 10, 2006 12:54 PM
To: owfs-developers@lists.sourceforge.net
Subject: Re: [Owfs-developers] Lookin
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