Nest and Additional Temp Sensors

[Dlucas10]

Hello!

I came across your plugin and it looks awesome!

One thing I'm wondering, seeing Nest doesn't support multiple temperature sensors (I think they need to fix this), is this something your plugin supports? I have a case, where i need to support multiple temperature sensors that feed into the decision of the temperature. If your plugin doesn't support it, I think it would be a great addition seeing Nest doesn't want to add them..

Dave

[Colorado4Wheeler]

If your temperature sensors are integrated into Indigo it would be a simple matter to create a trigger or action group for this. I use the Fibraro motion sensors that also report temperature to achieve this.

[Dlucas10]

If your temperature sensors are integrated into Indigo it would be a simple matter to create a trigger or action group for this. I use the Fibraro motion sensors that also report temperature to achieve this.

Yes, they are. I was using smart devices to help with this, but it seems to not support air conditioning mode so this summer I had to disable them.

What I'm looking to accomplish is if I have temperature sensors in 3 rooms on my first floor to average those and report to Nest to help make decision to turn on Heat/AC in my house. Where the thermostats are, make it so it's possible to not get an accurate temperature to it. Is this something you're doing in your setup? If so, I'd be interested in how you've accomplished it.

Thanks!

Dave


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[Chameleon]

Dave

That could be done but probably through a little python code in a schedule action that runs say every min. The main issue is that there isn't an AVERAGE function in the action conditions but it wouldn't be too hard to add a Server/Execute Action

The code would probably do something like this:

Read temperature from Device 1 into a python variable
Read temperature from Device 2 into a python variable
Read temperature from Device 3 into a python variable
Average the temperatures
Check if something needs to happen

In python it would look like:

Code: Select all

import indigo

# Get devices
t1 = indigo.devices[1632080987] # "Living Room Temperature"
t2 = indigo.devices[1167287922] # "Master Bedroom Temperature"
t3 = indigo.devices[476678264] # "Landing Temperature"

# Extract information on Temperatures
Temp1 = t1.displayStateValRaw
Temp2 = t2.displayStateValRaw
Temp3 = t3.displayStateValRaw

# Calculate average
tempAverage = round((Temp1+Temp2+Temp3)/3.0,1)

# Show the results in the indigo log as an example
indigo.server.log('Temperatures:'+str(Temp1)+' '+str(Temp2)+' '+str(Temp3))
indigo.server.log('Average:'+str(tempAverage))

# Now act
if tempAverage>18.0:
	indigo.server.log('Temperature too high - switching on cooling')
elif tempAverage<15.0:
	indigo.server.log('Temperature too low - switching off cooling')

Here's an example of the code in place in a New Schedule Page...

Create New Schedule Dialog

Screen Shot 2016-12-31 at 15.21.58.png (98.97 KiB) Viewed 2923 times

I'm not sure exactly what you want to do but if you let me know I'll try to come up with an action that changes your NEST when needed (and will probably be more elegant than this solution)

Regards

Mike

[farberm]

Dave:

Did you ever get the three temperature sensors script to work. I am getting the following error:

Schedule Average Upstairs Temperature Trigger NEST
Script Error embedded script: unsupported operand type(s) for +: 'float' and 'unicode'
Script Error Exception Traceback (most recent call shown last):

embedded script, line 14, at top level
TypeError: unsupported operand type(s) for +: 'float' and 'unicode'

I had to change the script as follows to get it to work....
# Extract information on Temperatures
Temp1 =int( t1.displayStateValRaw)
Temp2 = int(t2.displayStateValRaw)
Temp3 =int( t3.displayStateValRaw)

What did command did you use to turn on cooling or turn off cooling?