Ämne: Heatpump control with Arduino

[ToniA]

Hello, and sorry for not being able to write fluent Swedish. I do read Swedish, though.

Anyway, I have been working on a library to control a split-unit heatpump using Arduino: https://github.com/ToniA/arduino-heatpumpir.

The 'README' of the library describes the usage, so far I have been testing it out on Arduino Duemilanove and Mega boards, and the heatpump models which have been confirmed to work include for example Panasonic (at least CKP, DKE, JNE and NKE series), Mitsubishi FD-25 and Carrier. The library has support for some Midea models, and for Fujitsu AWYZ, but those have not been tried out against anything else than my IR code receiver, to check that the codes match.

At home I'm using this for two purposes:

• To have the home automation to turn on the heatpumps when the DIY air-to-water heatpump is not enough (at around -10C)
• To be able to remote-control cooling with a smartphone app, for example when coming home from the summer cottage

At the summer cottage I will put the Arduino GSM shield together with this, to be able to control the heatpump over SMS.

I would be happy to receive feedback, and contributions to the library.

Toni från Finland

[Earlslick]

Hi.
This sounds really interesting, I've to check this out.