Re: xPL-Probe-Temp Sensing

["Frank Mc Alinden" <frankmc@xxxxxxxxxxxxxxxx>]

Hi George

I did email Justin and enquired about being able to send out the temps in F
, He indicated that the pic didnt have enough code space left and i dont
think there was enough interest from people looking for Fareinheit
reporting that warranted him looking into it.....I think the code space
issue could be taken care of using a pic 16F88 chip which is a 4k device
the current Tom10 device is a 2k device....

I also requested Steve to have a look at xpltom10 and see if he could
implement conversion there but i suspect Steve must be very busy as he
hasnt posted to the list since he got back from holidays...

If i ever get my probe temp systeming up and running i would be more than
happy to see if i can get the tom10 board to report in farenheit , would be
nice to have access to the current code esp if its in asm although
understandably im sure justin wouldnt want to part with it.....

Frank

----- Original Message -----
From: George M
To: ukha_xpl@xxxxxxx
Sent: Saturday, August 13, 2005 11:11 AM
Subject: Re: [ukha_xpl] xPL-Probe-Temp Sensing


Frank,

Have you ever heard whether the TOM10 will be able to read temps in F
degrees?

George M
----- Original Message -----
From: Frank Mc Alinden
To: ukha_xpl@xxxxxxx
Sent: Friday, August 12, 2005 5:11 PM
Subject: [ukha_xpl] xPL-Probe-Temp Sensing


Hi All
Thought i would mention a little project i have been working on for
a few weeks now..
I  currently use the TOM10 board for temp sensing, but thought it would be
nice if my Probe system could also monitor temp sensors as well as video +
led probes....This would save me a cat5 cable in each room ..as i have a
probe zone box currently in each room

First thing i did was surf the net for some asm pic code for the dallas
1820
1 wire temp sensor.
After a frustrating two weeks and trying  bits of different codes  i have
managed to get my probe system to read the temp sensor...At the moment
though it  only has a tolerence of .5degree but hopefully down the track i
can mod the code to get it down to 1/10 degree.....

Some resistor changed was  required in the Probe zone box ( and also the
probe hub) , my intension is to make probes 5+6 of each zone box a temp
probe  OR standard probe input ..The probe hub will auto detect if a temp
sensor is present....

Next is to order some dallas 1820 sensors and mod my  probe system and  try
it out ...Still a bit of work to be done............

Tonys xPL-PROBE plugin might require a slight mod as can be seen by the
captured message below it reports the temp as status rather than
current.....

xpl-stat
{
hop=1
source=aec-probe.test
target=*
}
probe.basic
{
zone=test5
probe=probe5
status=20.5 c
}

More Soon
Frank

www.armaghelectrical.com.au



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