DEPRECATED

I no longer think this solution is the best solution to control your Daikin AC. Recently, ESPHome release support for AC. Their solution is much more elegant and versatile. I strongly suggest you check out the project.

https://esphome.io/

NodeMCU ESP8266 - Daikin ARC/BRC Controller

The project is about automating a Daikin AC. Using a NodeMCU ESP8266, you can control your AC with any MQTT compatible Home automation hub. I have use Home assistant.

Wiring Diagram

To make the Wiring Diagram, I have use a awsome website circuito.io.

Parts

• NodeMCU ESP8266 - Qty: 1
• LED - Basic Green 5mm - Qty: 1
• 100 Ohm Resistor - Qty: 1
• Infrared (IR) LED 950nm - Qty: 1
• Transistor - NPN BC337 - Qty: 1
• 220 Ohm Resistor - Qty: 1
• Mini Pushbutton Switch - Qty: 1
• 10K Ohm Resistor - Qty: 1

Home assistant configuration

climate:
  - platform: mqtt
    name: Living Room AC
    modes:
      - "off"
      - "fan_only"
      - "cool"
      - "dry"
      - "heat"
    swing_modes:
      - "On"
      - "Off"
    fan_modes:
      - "Min"
      - "Low"
      - "Medium"
      - "High"
      - "Auto"
    mode_command_topic: "DaikinACController/Mode"
    temperature_command_topic: "DaikinACController/Temperature"
    fan_mode_command_topic: "DaikinACController/FanSpeed"
    swing_mode_command_topic: "DaikinACController/Swing"
    min_temp: 18
    max_temp: 30
    retain: false
    precision: 1.0

Compatibility

Compatible with AC:

• FTK09NMVJU
• FTX09NMVJU
• FTK12NMVJU
• FTX12NMVJU (Tested with)
• FTK18NMVJU
• FTX18NMVJU
• FTK24NMVJU
• FTX24NMVJU
• AND A LOT MORE

Compatible with AC remote:

If the remote used for your Daikin AC remote Start With ARC or BRC, it should be compatible.

• ARC480A1 * ARC480A11 * ARC480A21 * ARC480A31
• ARC480A2 * ARC480A12 * ARC480A22 * ARC480A32
• ARC480A3 * ARC480A13 * ARC480A23 * ARC480A33
• ARC480A4 * ARC480A14 * ARC480A24 * ARC480A34
• ARC480A5 * ARC480A15 * ARC480A25 * ARC480A35
• ARC480A6 * ARC480A16 * ARC480A26 * ARC480A36
• ARC480A7 * ARC480A17 * ARC480A27 * ARC480A37
• ARC480A8 * ARC480A18 * ARC480A28
• ARC480A9 * ARC480A19 * ARC480A29
• ARC480A10 * ARC480A20 * ARC480A30
• BRC073a4 * BRC073a5 * BRC073a7 * BRC1E62
• BRC4C155 * BRC4C158 * BRC4C152 * BRC1C62
• BRC7F634F * BRC7F635F
• AND A LOT MORE

Big thanks to

• tzapu For is Amazing librarie WiFiManager
• knolleary For is Amazing librarie PubSubClient
• danny-source For is Amazing librarie Arduino_DY_IRDaikin ARC/BRC
• bblanchon For is Amazing librarie ArduinoJson