arduino-heatpumpir

Original location: https://github.com/ToniA/arduino-heatpumpir

For concrete examples, see the MySensors (Arduino + nRF24 radio) and ESPEasy (ESP8266 modules) integrations:

• https://github.com/mysensors/MySensorsArduinoExamples/tree/master/examples/HeatpumpIRController
• https://github.com/ToniA/ESPEasy/blob/master/ESPEasy/_P115_HeatpumpIR.ino

An Arduino library to control a Panasonic, Midea, Carrier, Fujitsu or Mitsubishi heat pump/split unit air conditioner. Currently supports at least these models

• Panasonic E9/E12-CKP (Panasonic remote control P/N A75C2295)
• Panasonic E9/E12-DKE (Panasonic remote control P/N A75C2616)
• Panasonic E9/E12-JKE and E9/E12-NKE
• Midea MSR1-12HRN1-QC2 + MOA1-12HN1-QC2, sold as Ultimate Pro Plus Basic 13FP in Finland (Midea remote control P/N RG51M1/E)
  • Also other Midea models sold as 'Ultimate', even some inverter models
  • Also Onnline (sold through Onninen) has been reported to work
• Carrier 42NQV035G / 38NYV035H2 (Carrier remote control P/N WH-L05SE)
• Toshiba Daiseikai (Toshiba remote control P/N WH-TA01EE).
  • Fully compatible with CarrierNQV functions instead of Daiseikai functions.
  • Tested with: RAS-10G2KVP-E RAS-10G2AVP-E and RAS-13G2KVP-E RAS-13G2AVP-E
• Fujitsu Nocria AWYZ14 (remote control P/N AR-PZ2)
• Mitsubishi MSZ FD-25, probably also FD-35 (remote control P/N KM09D 0052376)
• Hisense AUD (remote control Y-H1-01, Y-H1-02(E), Y-J1, Y-E4-07) probably AUC model
• Sharp AY-ZP40KR (remote control P/N CRMC-A788JBEZ), possibly also IVT
• Daikin RXS25G2V1B / FVXS25FV1B (Remote control P/N ARC452A1)
• Mitsubishi Heavy SRKxxZJ-S (Remote control P/N RKX502A001C)
• Mitsubishi Heavy SRKxxZM-S (Remote Control P/N RLA502A700B)
• Hyundai (Remote Control P/N Y512F2)
  • This is probably a generic Gree model

Instructions

• Download the library, and place it under your personal Arduino 'libraries' directory, under directory 'HeatpumpIR'
• See the example sketches

ESP8266 support

This library also supports ESP8266. Just change the IR send method from 'IRSenderPWM' to 'IRSenderBitBang':

IRSenderBitBang irSender(1);     // IR led on ESP8266 digital pin 1

• Note that depending on your board, certain GPIO's might not be available. For example on NodeMCU, the usable GPIO's are D1 (GPIO5), D2 (GPIO4), D6 (GPIO12), D7 (GPIO13) and D3 (GPIO0).

Arduino example

How to contribute

All these heatpump / A/C models have been reverse-engineered, by decoding the IR signal from the remote control. See the sketch https://github.com/ToniA/Raw-IR-decoder-for-Arduino for more information.

First the protocol needs to be understood

• The frame structure, and the timings of the symbols
• The bits which signal these
  • ON/OFF state
  • Operating mode (heat, cool, dry, fan, auto)
  • Temperature
  • Fan speed
  • Airflow direction etc. settings
  • And last, but not least, the algorithm to calculate the checksum of the IR signal

Once a working decoder module has been written, writing a transmitter module into HeatpumpIR is easy. I can help in coding the modules, and I'm also happy to receive pull requests.