Virtual Thermostat IR Baster

davidandjoyrichard · August 10, 2020, 11:07pm

Hello, I am a long time Smartthings user and now due to all the changes they are undergoing have just moved over to Hubitat. I could not be happier with the product! I am looking for some help with this project that I am working on moving over. What I have is a Tasmota IR blaster that I am sending an HTTP Post to for my Mini Split units (Mitsubishi IR). What I have done in the past is setup webcore pistons to monitor a virtual thermostat and send the HTTP Post for each change. I am using some global varables to help with writing the code but the way I have made this takes a lot of overhead to run. What is a better way to do this?

arnb · August 11, 2020, 2:28am

I have a personal groovy app, MiniSplit, used with Broadlink RM Mini3s. Perhaps with modification to the issued IR command and device codes it will work with the Tasmota device.

github.com

arnbme/hubitat/blob/master/MiniSplit.groovy

/**
 *  Import Url:   https://raw.githubusercontent.com/arnbme/hubitat/master/MiniSplit.groovy
 *
 *  MiniSplit App
 *  Functions:
 *		Controls my dumb Fujitsu mini splits in conjunction with Broadlink IR blasters, and an HE Virtual Thermostat device
 *      Allows for using mini split Dry mode as part of cooling process, or stand alone.
 *
 *		I wrote this after attempting this with RM, it's just to slow and tedious for coding complex logic, IMHO.
 *		Also I could not get the HVAC manager app functional with my Fujitsu devices
 *
 *	Preinstallation Requirements
 *	1. Install IR Blasters, this app is designed to work with Broadlink devices using the now withdrawn Broadlink Mini Driver app at
 *		https://community.hubitat.com/t/withdrawn-native-broadlink-rm-rm-pro-rm-mini-sp-driver-rc-hvac-manager/31344
 *
 *  2. Create working IR code sets for cooling (multiple temperatures), dry, off, and more as necessary
 *
 *  3. Must have a working Virtual Thermostat (or perhaps a real device).
 *		I use a Virtual Thermostat averaging temperatures from 3 devices using the HE Average Temperature app at
 *		https://github.com/hubitat/HubitatPublic/tree/master/example-apps

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nh.schottfam · August 11, 2020, 2:45am

in webcore, you could subscribe once to coolingsetpoint changes (it could be at end of piston)

Then at the start of the piston, you could store the coolingsetpoint once to a variable

Then all these if statements could be if variable is xx)

So
if thermostat thermostat mode is cool
set myVar = thermostat 1 coolingsetpoint

if myVar is (xxx)
then do ...

if myVar is (yyy)
...

at end of piston subscribe to the coolingsetpoint changes:

if thermostat1 set point changes
then
(this can stay blank)

This will be more efficient because

you only read the thermostat cooling set point once per run (reduces driver calls).

Otherwise, the code should run very quickly on HE, likely in < 20ms (not counting the http post time)

davidandjoyrichard · August 11, 2020, 3:25am

What driver are you using for the IR Blaster?

arnb · August 11, 2020, 3:36am

davidandjoyrichard · August 11, 2020, 4:02am

Withdrawn? Is there a copy somewhere else?

arnb · August 11, 2020, 12:26pm

Take a look around post 289

arnb · August 11, 2020, 3:32pm

Which driver is being used with your Tasmota?

davidandjoyrichard · August 11, 2020, 4:34pm

I have not added the IR Blaster yet. I have been looking for a driver that will let me talk to it via HTTP instead of MQTT. I am using tazmota device manager for my lights and wall switches and that is working well but it doesn't seem to have an or blaster option.

davidandjoyrichard · August 14, 2020, 3:13am

Any reason why this would work with SmartThings but not hubitat?

davidandjoyrichard · August 14, 2020, 10:21pm

Any thoughts on how to get around this? it does not like {} or {}

2020-08-14 03:14:02.684 pm warnCall to off failed: Illegal character in query at index 37: http://192.168.1.61/cm?cmnd=IRHVAC%20{"Vendor":"Mitsubishi_AC",%20"Power":%20"1","Mode":%20"Cool",%20"FanSpeed":%20"Auto",%20"Celsius":%20"Off",%20"Temp":%20"69"}

system · September 24, 2022, 11:05am

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