Hello,
both of you are right.
I feel stupid for having posted this, because I have now read the DS18B20
datasheet and understood that I knew almost nothing. I didn't know that there
is 2 pullup modes, one weak and one strong. And that we have to activate the
strong pullup 10micro-seconds after
Hello,
regarding this 85°C error: it looks like it's not only the power-up state:
we get this value everytime we dont wait enought time after requesting a
temperature convertion and reading the scratchpad.
I did a small program on an arduino connected on a DS18B20, this programm
start with a
Hello,
thanks Stefano and Jan for your support.
Yes Stefano you're right a hybrid system won't be good. I'm going to follow
your advice and stop using owfs fuse system. I was afraid of too much work
but after checking it shoud be ok. My system was not too badly designed. I
actually have links
Hello,
I'm back.
I have been testing for 18 days now. And IT IS OK!
Well let's be careful up to now it is ok.
So my problem was these bad connections.
During 18 days my script was reading every 10 seconds the 8 Onewire devices
on the buses.
My counter reports approximately 114000 checks x8
Hi,
There is now almost a week that's it running perfectly.
My monitoring script is running, reading all 8 devices every 10 seconds and has
no reported any device lost, just a very few temp reading at 85, doesn't
matter.
I cross finger and continue testing...
Best regards
--
Guy
Thanks Jan for your support and the interest you are showing on my problem.
You pointed out the hardware and I agree. It's possible.
But when you said: "Any devices can go missing if the bus is jumbled"
I thought: how is that possible because I have separate buses.
If it's short on one bus it
nter =1540 Sat Jun 11
15:23:28 CEST 2016 3A.B3600200/sensed.BYTE Counter =1540 Sat Jun 11
15:23:28 CEST 2016 26.FFD8F100/humidity Counter =1540 Sat Jun 11
15:23:28 CEST 2016 10.C825FA010800/temperature Counte
Hi
There is now 75 hours my script is running. I've got:
-0 owread errors :-)
-4 out of range errors
Since today I've had a 8th device, a temp. sensor DS18S20 (the one that was
disappearing some time ago)
in 75 hours it approx 23000x7readings (8 readings since today) and all
succeed!
So it's
Hi!
Update:
43hours running with "owread uncached" ZERO error!
the script sleeps 5 seconds then read 7 1wire devices, it takes approx
4.5seconds more, then go to sleep again
So approx 1700*7 readings, no error
When the previous script was reading the directories I got a few errors. So
I believe
Hi Jan,
thanks for considering my (small) problem.
>Double listing of devices means the "Search ROM" trickery fails. Most
>likely because it's very fragile on any bit. No checksums at all.
No CRC at all? I thought there was a CRC in each ROM number?
>You don't have a star topology cabling, do
Hello,
this is an update. I have sorted, filtered all data got previously.
in 61hours 108 triggerings. So as already said it means my 1wire device
directories were ok 99.75% of the time and wrong 0.25%.
When they are wrong the errors are the following
108 errors in /mnt/1wire
50% missing
Jan,
thanks for your explanations. How the cache works is clearer for me now.
So if I know my devices ROM number I can don't care about the directory and
access them directly. It's actually what I'm doing.
But still sometimes the device doesn't answer, and this is what I'm trying to
Hello,
> >
> This means you have to access I²C directly by using --i2c=... and
> unload/blacklist the ds2482 kernel module?
I have this line in my owfs.conf (owserver and owfs are running as services
thru init.d)
server: device = /dev/i2c-1
i2c module is properly loaded, here is the ouput of
Hello
Thanks very much for so quick answers.
@Steinar No usually the lost device(s) don't re-appear after restarting owfs
and owserver. But it may vary. I have done so much tries and couldn't catch
any evidence of doing this or that solve the issue. Now I just wait and the
lost device(s) come
nt/1wire/ did this for 6 years. Is that wrong?
Should I use owread, owwrite, owdir, etc?
Please, if you can give me some light on this concurrency issues.
Thanks a lot.
--
Guy COLIN
--
Mobile security can be enabling, not merel
Hi Colin,
sounds like hardware problem.
Does the USB us master disapear also? i.e. no more 81.xx in the devices
listing. Or only the temp sensors disapear?
--
Guy
--
Android is increasing in popularity, but the
Hello,
Whith this 2 lines it's working
! server: server = 192.168.0.100:4304
server: port = 4304
Just replaced localhost with IP address. (Okay so localhost means on
localhost only and the IP @ means accessible from network)
But I still don't understand the leading !
Usually this symbol means
Hello,
I have a problem that sounds simple but can't get rid of it.
I have several computers (Raspberry Pi) running owfs with their own physical
1Wire bus, it's running fine.
For convenience I want to have 1 machine accessing others via owserver and
network.
I would like a single owfs tree
Hello,
For me, this is now solved: I don't have anymore double entries in owfs
directory listing :-)
I'm not sure what exactly the root cause was, but I can tell what I did:
When I had double entries (each 1wire device was listed twice in owfs tree,
I had bus.0 and bus.1 with only 1 physical
Hello,
The double entries appear only in owfs
No double entries in owhttpd or owftpd
Version 2.8p15-1
Have a good day
--
Guy
--
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Colin Reese colin.reese at gmail.com writes:
My experience with i2c (2483) on 2.8p15 was at first double and
intermittent probes and then no probes. I upgraded to 2.9 and everything
works.
Hi Colin,
Was it on a Raspberry Pi?
Did you compile on the Pi itself?
The 2.9p1 and 2.9p0 release
Paul Alfille paul.alfille at gmail.com writes:
Tell me more about what won't start on the Pi? Is it that 2.8p15 owserver
works but 2.9 owserver doesn't? Is there a particular error that you see?
I know you've posted extensively on a Pi problem, but it never registered
that an older
Mick Sulley mick at sulley.info writes:
The link works but is spread across two lines. If you cut and paste it
is OK.
http://wiki.temperatur.nu/index.php/OWFS_with_i2c_support_on_Raspberry_Pi_(English
_version)
We need to get a newer version into the repository but I have no idea
Lappies lappies at gmx.de writes:
hi,
nice, would like to have a look at your source code,
maybe I can pick something up and optimize my code
thx
rudi
Am 29.03.2013 04:02, schrieb Guy COLIN:
Hi Rudi,
Source code is available on mu site
Mick Sulley mick at sulley.info writes:
Hi Guy,
Thanks for sharing that, I am running something similar and in the
process of migrating to RasPi. One problem I found is that with the
repository version of owfs, 2.8p15-1 I see a couple of sensor
directories which are empty. I
Hi all,
after several years of running owfs to drive my home heating system and a
recent
move to a Raspberry pi, I updated my website and you can see everything here:
gcolin.hd.free.fr The site is a little bit messy and huggly but everything
works
perfectly.
Source code available as well (all
Hi,
I would suggest to go step by step to discriminate the faulty equipment:
Disconnect everything just keep the 6 channel hub connected to the serial link,
have it running for some time you should see only the master on the owfs tree
and if you still have the short circuit it's the faulty.
But
the tests using a Sheepwalk Electronics RPI2 adapter, which is
specifically designed for the Pi, and I suspected that this may be the
problem and so switched to a DS9490 USB adapter, but the no reads continue.
Do you know if you are experiencing no reads?
Cheers
Mick
On 01/02/13 15:33, Guy
Roberto Spadim roberto at spadim.com.br writes:
nice, could you send me the binary files of your raspberry?
i have a arm eabi v4
hardware and i couldn't cross compile it right, maybe copying files
solve my
problem
Hi Roberto,
Yes, I can but which binary do you actually want? owfs
Colin Law clanlaw at googlemail.com writes:
Following a recent thread which provided a number of different ways of
sensing AC power (120/220VAC) I wonder what are the options for AC
power switching via 1-wire. Commercially I have only found devices
such as [1] and [2] which seem rather
Hm I think i2c is the better Interface for this. Using a DS2483 one
single Bus Master chip is sufficient.
Not always, I already have all my home 1wire network using a hobbyboard
6channel
hub and it's RS232 serial + another 1wire on serial adapter as well.
But agree with you tout go direct
Hi,
If you run official Raspbian to install owfs you just have to do:
sudo apt-get install owfs
nothing else, you will have owfs 2p15
you have to edit /etc/owfs.conf to say if you use usb, serial, .. adaptor
this install will add 3 scripts in etc/init.d/ = owserver owhttpd owftpd
these 3
Hello,
Raspberry pi + official latest Raspbian + owfs 2p15
No problem with the serial port available on GPIO port = ttyAMA0
I have use a MAX3232CPE to adapt Raspberry pi 3.3V to RS232 +12V
and -12V as shown here:
http://codeandlife.com/2012/07/01/raspberry-pi-serial-console-with-max3232cpe/
Hi everybody,
Yes I must say that I'm running the USB adapter only and just for a few days.
I'm not at home and don't have any device to connect for test. I didn't know
there was an issue with the stability of the USB adaptor. However somebody
report no problem since june on USB. What about
Hello,
This simple message, just to say that owfs is running fine on Raspbian.
I have read many posts here about the Raspberry pi but none saying this simple
thing:
Raspberry pi + Raspbian + owfs run directly out of the box:
sudo apt-get install owfs # to install it
then edit /etc/owfs.conf to
Patryk p4trykx at o2.pl writes:
I found a workaround for this some time ago.
before writing to the LCD do
printf 1 /mnt/owfs/29.BABC0800/strobe
and If you want to fiddle with 3 IO
printf 0 /mnt/owfs/29.BABC0800/strobe
Thanks for that Patryk,
I will try it as soon as I can
Patryk p4trykx at o2.pl writes:
before writing to the LCD do
printf 1 /mnt/owfs/29.BABC0800/strobe
and If you want to fiddle with 3 IO
printf 0 /mnt/owfs/29.BABC0800/strobe
Patryk you are The Man. You got it, your workaround is perfectly working.
I don't need anymore. This
Guy COLIN guy.colin at gmail.com writes:
I have recently added to my network a Hobby board LCD driver.
Following owfs man
pages I have no problem to write anything to the LCD, or to read the state of
the 3 input switches (the 3 first PIO's as per Hobby board design).
Hello,
since I haven't
Hello everybody,
2 years now I'm using owfs for monitoring home temperature and driving my
heating system. Everything is perfect. Big thanks to developers.
I have recently added to my network a Hobby board LCD driver. Following owfs man
pages I have no problem to write anything to the LCD, or to
Thank you Paul for your full explanations,
I will try to go deeper on tests when I have time, if I find anything
helpful I will report here.
However tell me:
the Maxim PIO status register give 2 bits per PIO :
PIO pin state and Latch state (at least for the DS2413)
owfs give 3 informations
Hi
This is in accordance with owfs man pages:
An owfs write 1 in the PIO will closed the internal switch: that means
connected PIO pin to ground= 0V
The owfs 2408 man page about the sensed propertie says:
Logic level at the PIO pin. 0 = ground. 1 = high (~2.4V - 5V ).
But the owfs 2408 man page
Message-
From: Guy COLIN [mailto:guy.co...@gmail.com]
Sent: Monday, May 17, 2010 5:20 AM
To: owfs-developers@lists.sourceforge.net
Subject: Re: [Owfs-developers] DS2413 writing to PIO: owfs 0=OFF Maxim
0=ONWhy?
That's true when I first tried to echo 1 to turn on a relay on the
hobby
!...
any idea?
Alarm is well working after the owfs.conf modification.
--
Guy
Guy COLIN a écrit :
Hi all
I want to report what I found, it may help...
I run owfs for DSL (bootable CD owfs-dsl-2.7p4) (frugal install on flash
disk). My 1-wire network on USB (DS9490) has 1xDS18B20 1xDS18S20
Hi Paul,
Thanks for your quick and full answer.
Yes even if I'm not a pure hardware guy (I'm a Guy guy (Guy is my name
;-) )), I had the Maxim DS2413 documentation nearby when performing the
first tests. That's why I found it strange to be reversed. However after
reading owfs DS2413 man page,
Hi all
I want to report what I found, it may help...
I run owfs for DSL (bootable CD owfs-dsl-2.7p4) (frugal install on flash
disk). My 1-wire network on USB (DS9490) has 1xDS18B20 1xDS18S20 2xDS2413.
Because I found several Bad Adapter adapter reconnected messages in my
logs I Google-search
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