I wanted to integrate my RV's air conditioner into the Home Assistant automation platform that I use for other things there. I had no idea what an adventure that would end up being.

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Note: I might receive a small commission (at no cost to you) if you buy parts using these links, and I'd be grateful.

Parts/Tools used in this Video
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Soldering station: https://amzn.to/3Y9109p
Desoldering tool: https://amzn.to/3NaIgA9
Knurled nut insertion tips: https://amzn.to/3TYMoH3
Flux: https://amzn.to/47T7NHs
Solder: https://amzn.to/3ByuLaV
Wire: https://amzn.to/4evj6YP
Needle-nose pilers: https://amzn.to/3TT6l20
Wire stripper: https://amzn.to/3TYbLcd
Box cutter: https://amzn.to/3BxLWJE
Cheap hot glue gun: [No longer available.]
Torx driver kit: https://amzn.to/3NeEjKH

Knurled nuts: https://amzn.to/47VVHgP
Screws: https://amzn.to/47TZPxH
Rotary encoder: https://amzn.to/4eU5feD
QWIIC wires: https://amzn.to/4gUm5fa
Knob: https://amzn.to/3XRUuCG
JST Header kit: https://amzn.to/3NfhyXa
LCD display: https://amzn.to/4esODe3
MCU module: https://www.adafruit.com/product/5395
Temperature sensor: https://amzn.to/3zI792Z

Thermostat ESPHome example code: https://github.com/EtherFidelity/ther...

Thermostat enclosure: https://www.thingiverse.com/thing:678...