Fujitsu AC in HomeKit Retrofitting my old AC to support Apple HomeKit. 💨 Hadware list: Controller Board - NodeMCU v2 Transistor for led - BC547 IR led - TSAL6100 Temperature sensor - DHT11 Software list: DHT Library HomeKit Library IRremoteESP8266 Library Arduino IDE: Board - Generic ESP8266 Module Port - /dev/cu.usbserial-0001