I got tired looking for the remote control of my very old AC units at home. I cannot modernize the apartment, so I thought maybe I can upgrade my lifestyle by “hacking” my air conditioning system. There are tons of tutorials for this on the web, basically you just reverse engineer the infrared remote control of your AC and use a wifi enabled micro controller to send the IR signals.
I also created a nice web interface based on bootstrap. It displays also the actual temperature, as I included a sensor into the device. Overall, this project was more or less a self-study exercise, as I also got acquainted with MQTT and JSON to exchange commands information between the device and my Raspberry Pi.