I noticed that one of my systems (Raspberry Pi B+, Owfs 2.9p8) behaved
very well without any anomalous temperature jumps. So I uninstalled
the Owfs 2.9p5 running on the misbehaving systems, updated, upgraded and
installed Owfs 2.9p8. After this all measurements were ok without any
jumps and the
-requ...@lists.sourceforge.net wrote:
> 1. unruly temperatures (H?kan Elmqvist)
>
> --
>
> Message: 1
> Date: Fri, 12 Sep 2014 17:18:53 +0200
> From: H?kan Elmqvist
> Subject: [Owfs-developers] unruly temperatur
Hello!
Normally I would say one thing, "Of course it does, I arranged it.",
but under the circumstances, there are a lot of reasons why its doing
that.
Besides it was arranged that way.
Seriously? Lots of reasons, look for an open line someplace.
-
Gregg C Levine gregg.drw...@gmail.com
"T
Well, I guess then it is NOT a software bug then... ;o)
It for sure looked like one...
Would be interesting to understand why it results in this weird behaviour!
Cheers,
Martin
On 09/14/2014 06:25 PM, Nico Bouthoorn wrote:
I've had the same when i left the power pin disconnected (ds18b20),
n
I've had the same when i left the power pin disconnected (ds18b20), now
i connect it to ground.
Nico
Martin Patzak (GMX) wrote:
I would check, if the raw data, read from the owfs show that effect or
if it gets introduced later.
In any case it looks like a software bug to me - I could be wrong,
I would check, if the raw data, read from the owfs show that effect or
if it gets introduced later.
In any case it looks like a software bug to me - I could be wrong, but I
don't think so ;o)
Think about what changes you made since your last running system without
the effect.
Martin
On 09/1
The installation is on a remote island and I can't physically access it
for now. The server since about two months is a Raspberry Pi B+
connected to a wired network. For reliability reasons I have two DS9490s
connected with a USB-hub powered by a 2 A supply. The Pi uses a separate
1 A supply. I use
Whats cable distance? Does it use parasite power?
Em sábado, 13 de setembro de 2014, Håkan Elmqvist
escreveu:
> Thanks,
> but I can hardly believe that the behaviour is caused by the power supply,
> a DS9490R USB to 1-Wire/iButton Adapter. The transitions in the different
> channels don't seem
Thanks,
but I can hardly believe that the behaviour is caused by the power
supply, a DS9490R USB to 1-Wire/iButton Adapter. The transitions in the
different channels don't seem to be synchronous nor correlated.
H
Roberto Spadim skrev 2014-09-12 17:55:
> i think it's like a bad power supply or some
i think it's like a bad power supply or something like it
2014-09-12 12:18 GMT-03:00 Håkan Elmqvist :
> Suddenly my temperature readings have started to jump up and down about
> 0.5 degree C at infrequent but random points of time. See:
> http://smeden.org/jumps.jpg
> (the green trace is the tem
Suddenly my temperature readings have started to jump up and down about
0.5 degree C at infrequent but random points of time. See:
http://smeden.org/jumps.jpg
(the green trace is the temperature of my watermaker, the blue sea- and
the red outdoor-temperature)
I have had this system since 2005 but n
11 matches
Mail list logo
