hoval

Monitor and control Daikin/Rotex Altherma heat pumps from Home Assistant directly via the 2-wire P1/P2 thermostat interface. Also enables reading other Japanese Home Bus System based standards, a.o. Hitachi H-link, Hisense H-NET, MHI, Daikin DIII-NET (F1/F2) bus, Mitsubishi M-Net bus, Toshiba TCC-Link, Panasonic/Sanyo SIII-Net, Haier, and York.

Esp32 Canbus Shield

Hoval Gateway

Home Assistant integration for Hoval Connect (HACS) — control heating (HK) and ventilation (HV) via the Hoval IoT cloud API

Hoval WiFi Gateway - CAN-BUS to MQTT - no MOD-BUS required

firmware tailored to run on a WaveShare ESP32-S3 RS485 CAN Board and expose sensors from a heating system controlled by a Hoval Toptronic E

Open Modbus-TCP gateway for Hoval TopTronic E heat pumps & ventilation - Raspberry Pi + CAN. Works 1:1 with official Loxone templates, Home Assistant, Grafana & an AI (MCP) interface. Local, no cloud.

Esp32 Canbus Shield for Hoval TopTronic

Home Assistant Modbus integration for Hoval UltraSource T comfort heat pump (TTE-GW gateway, WFA-200 controller)