P1P2Serial Versions Save

Monitor and control Daikin/Rotex (hybrid/Altherma) heat pumps via the 2-wire P1/P2 thermostat interface with an ATmega328P, ESP8266, and electronics. The P1P2Serial library and P1P2Monitor program perform low-level bus operation, the P1P2-bridge-esp8266 program interprets data from/to MQTT supporting Home Assistant MQTT discovery. P1P2Serial may also be used for other Japanese Home Bus System based standards: DIII-NET (F1/F2) bus, Mitsubishi M-Net bus, Toshiba TCC-Link, Hitachi H-link, Panasonic/Sanyo SIII-Net, Haier, York, and others.

v0.9.23

1 year ago

Adds ADC support to monitor 3V3 and bus voltage, bit-banging AVRISP, w5500 ethernet, and various fixes, for P1P2-ESP-interface v1.1.

v0.9.22

1 year ago

Adds control for FDY/FDYQ systems, improved scopemode, L5 mode for testing F-systems, ..

v0.9.18

1 year ago

v0.9.18 preliminary HA integration (incl energy)