OpenTherm settings In GPIO Out GPIO Master MemberID code After changing GPIO, the ESP must be restarted for the changes to take effect. Options DHW present Summer/winter mode Heating CH2 always enabled Duplicate heating CH1 to CH2 Duplicate DHW to CH2 DHW blocking Sync modulation with heating Save
Outdoor sensor settings Source type From boiler via OpenTherm Manual via MQTT/API External (DS18B20) GPIO Temp offset (calibration) Save
Indoor sensor settings Source type Manual via MQTT/API External (DS18B20) BLE device (ONLY for some ESP32 which support BLE) GPIO Temp offset (calibration) BLE addresss ONLY for some ESP32 which support BLE Save
External pump settings Use external pump Relay GPIO Post circulation time (min) Anti stuck interval (days) Anti stuck time (min) Save
System settings Debug mode Enable serial port Enable telnet After changing this settings, the ESP must be restarted for the changes to take effect. Save