Re: [Owfs-developers] 1-wire network problems

Well. It would certainly be interesting to understand THAT failure mode :) Thanks for getting back to us and letting us know your solution. So many times you never hear or someone just says :N/M I fixed it. Paul On 02/03/2014 11:12 AM, Colin Tinker wrote: Just to let you all know I sorted thi

Re: [Owfs-developers] 1-wire network problems

Please check out Dallas/Maxim app note 148. Gives a lot of insight into making things work and why they don't. Open stubs are a bad thing and cause reflections on the wire, disrupting communication. They can also act like antennas, picking up

Re: [Owfs-developers] File Structure Question

Mick, are you using os.walk() ? I haven't tried it myself but I wouldn't be surprised if the bus.0 recursion gave it fits. The following Python should work to circumvent the issue: |forroot,subFolders,files inos.walk(1wdir): if'bus.0'insubFolders: subFolders.remove('bus.0')| I've use o

Re: [Owfs-developers] usb-i2c-1wire

Right. It's not for i2c master. It's meant as a bridge device for the micro microcontroller. That is, i2c to USB such that my PC (for example) can see a standard com port and the micro just talks i2c to the PC. It's more of a USB port for the micro than an i2c port for the PC.

Re: [Owfs-developers] owfs 2.7p38 on unslung - loses 1 wire bus when using temploggerd and script

blems after that. No, it's not as 'clean', but it's not like the 1-wire bus is fast enough to keep up with USB anyway. Ziggy On 01/04/2012 08:54 AM, Jan Sennesael wrote: i installed *owfs* 2.7p38-1 on my *unslung* nslu2. (unslung 6.8) i also installed *temploggerd* for mon

Re: [Owfs-developers] ds2480b

; or ioctl(fp, BREAK); ??? i never sent a break via serial 2011/11/29 Ziggy Does it need to be that complex? Do you really need anything other than IAC BREAK? I don't believe so. Only if you wish to run the DS2480 at higher than 9600 bps, which is optional. In fact, the data sheet sho

Re: [Owfs-developers] ds2480b

s, we will never know if other side is online, like a serial line... but we can´t know if host is up or not... (for me no problems) 2011/11/29 Ziggy After looking at this a little more closely, I don't think it will work. What I mentioned earlier is not enough to force a 'start polarity

Re: [Owfs-developers] ds2480b

sending 8 bit data with a valid stop bit to the DS2480 no matter what we do. Apologies for the confusion, but I'll keep thinking about this. It would be nice to have a streamlined UDP solution. Ziggy On 11/29/2011 02:27 PM, Roberto Spadim wrote: where is the rfc2217 implention in owlib?

Re: [Owfs-developers] ds2480b

erial converter should work if the DS2480B device reset is accomplished by sending the character with SPACE parity. Havent tried it myself though. Ziggy On 11/29/2011 12:13 PM, Roberto Spadim wrote: > hi guys, someone could explain how ds2480b works? > for example, what it must do wit

Re: [Owfs-developers] rfc2217 - help with ethernet-serial converter

It could be that the RFC2217 support needs to be specifically enabled on the device. Some of them are like that (my company's for example :) I would find it useful to have a WireShark or tcpdump of the TCP packets for this connection. The owfs debug is not showing the full story. Ziggy O

Re: [Owfs-developers] Network Problem

How are you getting the relay power to the relay? Along the same cable as the 1-wire network? It kind of sounds like it. It would be useful to know how long the wire run is, what gauge wire is used, and what the relay coil specs are (resistance, voltage, current, etc.). Generally speaking, with

Re: [Owfs-developers] telnet - ser2net

Looks like the link isn't binary transparent and the telnet protocol interpreter is seeing something like '0xFF 0xFE 0x31' and trying to interpret it as in-band control sequences. You need to turn off telnet support. Try changing the 'telnet' to 'raw' in yo

Re: [Owfs-developers] new interface - snmp

Sorry for the long post, but it seems some clarifications are in order. I think you need to do some basic review of how SNMP works. is a reasonable introduction, but only scratches the surface. If you are going to use SNMP, you *will* be using MIBs,

Re: [Owfs-developers] Problem running Python examples

OK, I had to do a bunch of stuff to get an owfs package built for my current system (Seagate DockStar - an ARM5 PogoPlug variant), so am using the new 2.8p0, along with Python 2.6.5. Try making this change to /usr/lib/python2.6/site-packages/ow/__init__.py (or wherever your's lives): The change

Re: [Owfs-developers] Wanting to get a mac and consolidate home machines

Rob Looks like you may be able to do it. See http://owfs.org/index.php?page=macintosh There is also a MacFuse project at http://code.google.com/p/macfuse/ I haven't tried putting owfs, etc. on my Macs as I've been focusing on lower power platforms (Synology NAS, NSLU2, etc.). Paul Sent f

Re: [Owfs-developers] OWFS and RS232 over Ethernet Adapter

Looks to me like you are getting echo from somewhere. Every byte is echoed back. Check the settings for each part of the data path and make sure echo is disabled. Another problem may be with the way owfs detects the adapter. It may not be compatible with this setup. But you will have to sol

Re: [Owfs-developers] Problem with OWNet::write

Pardon me for jumping in here, but I did notice that in this last message you were using port 4303 while in your next earlier message regarding owfs you were using port 4304. That would explain the 'connection refused'. Hope this helps somehow. On Aug 13, 2009, at 7:50 PM, William Brown w

Re: [Owfs-developers] Thinking about OWFS ease of use

Aliases appear to provide what I was looking for. I'll have to explore that option. I was imagining the ability to simply rename the devices as you would in a 'normal' filesystem and have owfs take care of the persistence automatically. As an aside, the reason I missed the alias file option

Re: [Owfs-developers] Linkhub-E

Seems to me the simplest solution would be to disable telnet mode on the Linkhub-E. Not having one to work with, and with the various models, firmware versions, and documentation versions out there it makes it a little hard so say for sure. But in the doc that I have been able to view there

Re: [Owfs-developers] Linkhub-E

The FF fx hex sequences look like telnet IAC sequences to me. In most device servers these can be disabled. It's often called raw mode, transparent mode, or something similar. I'll take a look at the Xport doc later tonight. Maybe the whole extra character problem can be avoided by setting

Re: [Owfs-developers] Thoughs on a temp sensor based liquid level monitor?

A little late to the party here, but (generally speaking) I would think that a non-contact type of solution would be the best. To that end, perhaps an ultrasonic solution would be workable. Maxbotix has a nice little line of ultrasonic sensors, and there was a nice write up in June 2008 Ser

Re: [Owfs-developers] python, ownet, nlsu2, and owshell utils

At the risk of posting one of those useless 'it works for me' messages, I don't experience the same problem on my unslung NSLU2. I'm using a hub, so maybe that comes into play, but I've no idea how it would. I've included the output from my python invocation, and the installed versions of some of t

[Owfs-developers] Unable to read DS18S20 through DS2409 on NSLU2(SLUG)

I've updated to the latest NSLU2 build of owlib/owfs/owshell (2.6p2-3) and continue to be unable to read DS18S20 sensors through a DS2409 microlan coupler. The thing is, I *can* read the DS1820 in my V1 weather station. I tried reading both devices using owread and made sure the conditions wer

Re: [Owfs-developers] Problem with temperature reading

FWIW, I've had the same problem since going to owfs 2.6p1-3. I hate to just chime in with a 'me too', but at least Thomas knows he isnt alone :) I have a similar setup - going through a DS2409 coupler, all DS18S20-PAR read 85C. digitemp reads everything fine. This didn't seem to occur in 2.5p10.

[Owfs-developers] owfs-2.6p0 SLUG build?

I'd exercise the persistent TCP option, but I need a new build for the NSLU2. Real Life(tm) has not allowed for any owfs time in the last two weeks or so, sorry about the lack of updates. I've got ownet python module templates for the new read directory function and the persistent TCP connectio

Re: [Owfs-developers] HUMIDITY

I've used the HS15P before on a PIC. It's not going to be easy to interface to 1 wire. The big requirement is that the sensor can *not* have a standing DC voltage across it, or you will destroy the sensor. As it says in the datasheet: AC voltage 50 Hz to 1kHz. You may be able to place this acro

Re: [Owfs-developers] understanding owserver TCP connection behavior

First, just a quick statement. I am only looking at the way owserver operates with a TCP connection. Please note that I am *not* suggesting a change to the owserver protocol itself, but the way it uses the TCP connections from clients. And now that I think about it, persistent connections makes

Re: [Owfs-developers] Bug in ownet (python) with DS2409 ?

data = s.recv(24) if not data: break ret, payload_len, data_len = self.unpack(data) if payload_len: data = s.recv(payload_len) fields.append(data[:data_len]) else: break s.close()

[Owfs-developers] Bug in ownet (python) with DS2409 ?

I'm trying to work with the recently released ownet python classes (ownet-0.2). This is on an unslung Slug (6.8) if it matters. I am running into a problem when trying to traverse a 2409 swtich. Now, part of the problem may be that I learning python at the same time, so please forgive me if I a