P1P2Serial | control Daikin/Rotex heat pumps

P1P2Serial is a C++ library typically used in Internet of Things (IoT), Arduino applications. P1P2Serial has no bugs, it has no vulnerabilities and it has low support. However P1P2Serial has a Non-SPDX License. You can download it from GitHub.

the p1p2monitor program and the p1p2serial library read and write raw data packets on daikin p1/p2 two-wire interface, and similar interfaces, using an arduino uno and a p1p2serial shield. there is preliminary support for some daikin p1/p2 based devices for parameter interpretation, json, and mqtt. wifi can be added using an additional esp8266. preliminary support to switch basic functions (dhw, heating/cooling) on/off is confirmed to work on 3 specific models. automatic counter requests (for monitoring electricity consumed) is supported. any use is at your own risk (gpl sections 11 and 12 apply). the p1p2serial library and p1p2monitor enable reading and writing raw data packets on the daikin/rotex p1/p2 serial interface using an arduino uno (or a similar board) and a small p1p2serial adapter circuit using an mm1192 ic. this combination translates the p1/p2 signals into a regular serial protocol over usb which can be read by a system such as a raspberry pi. the p1p2monitor program converts bus data from/to ascii-formatted hex data. certain parameters can be adjusted via the serial interface. each packet (data block of consecutive bytes) starts on a new line. in verbose mode, the time between data blocks is shown in seconds (in ms resolution) at the atart of each