Bosch BTH-RA

Model	BTH-RA
Vendor	Bosch
Description	Radiator thermostat II
Exposes	climate (local_temperature, occupied_heating_setpoint, local_temperature_calibration, system_mode, pi_heating_demand), boost, window_open, display_orientation, display_ontime, display_brightness, lock (state), battery, linkquality
Picture

Notes

Pairing

To pair this device you have to install the device via its installation code. The installation code can be obtained by scanning the QR-code on the inside of the battery cover with your smartphone. Then get the device into pairing mode. In zigbee2mqtt navigate to "Settings" --> "Tools" and click on "Add install code". Paste the code you got from the QR-code and confirm by clicking "OK" which will get zigbee2mqtt into pairing mode automatically. Wait for your device to be joined.

Factory resetting

To factory reset the device remove one of the batteries. While pressing and holding the device's main button on the front, insert the battery back. As soon as the device's LED is starting to blink orange while showing "RES", release the main button and press and hold it again until the device's LED is lighting up green. The device will then restart into the calibration process and look for a Zigbee network to join. In case something went wrong, the device's LED will start to blink red. The process has then to be start all over again.

OTA updates

This device supports OTA updates.

Options

• thermostat_unit: Controls the temperature unit of the thermostat (default celsius). The value must be one of celsius, fahrenheit

Exposes

Climate

This climate device supports the following features: local_temperature, occupied_heating_setpoint, local_temperature_calibration, system_mode, pi_heating_demand.

• occupied_heating_setpoint: Temperature setpoint. To control publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"occupied_heating_setpoint": VALUE} where VALUE is the °C between 5 and 30. To read send a message to zigbee2mqtt/FRIENDLY_NAME/get with payload {"occupied_heating_setpoint": ""}.
• pi_heating_demand: Position of the valve (= demanded heat) where 0% is fully closed and 100% is fully open. To control publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"pi_heating_demand": VALUE} where VALUE is the % between 0 and 100. To read send a message to zigbee2mqtt/FRIENDLY_NAME/get with payload {"pi_heating_demand": ""}.
• local_temperature: Current temperature measured on the device (in °C). Reading (/get) this attribute is not possible.
• system_mode: Mode of this device. To control publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"system_mode": VALUE} where VALUE is one of: off, heat, auto. To read send a message to zigbee2mqtt/FRIENDLY_NAME/get with payload {"system_mode": ""}.
• local_temperature_calibration: Offset to be used in the local_temperature. To control publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"local_temperature_calibration": VALUE}.The minimal value is -5 and the maximum value is 5 with a step size of 0.1.

Boost (binary)

Activate Boost heating. Value can be found in the published state on the boost property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"boost": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"boost": NEW_VALUE}. If value equals ON boost is ON, if OFF OFF.

Window_open (binary)

Window open. Value can be found in the published state on the window_open property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"window_open": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"window_open": NEW_VALUE}. If value equals ON window_open is ON, if OFF OFF.

Display_orientation (enum)

Display orientation. Value can be found in the published state on the display_orientation property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"display_orientation": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"display_orientation": NEW_VALUE}. The possible values are: normal, flipped.

Display_ontime (numeric)

Specifies the diplay On-time. Value can be found in the published state on the display_ontime property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"display_ontime": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"display_ontime": NEW_VALUE}. The minimal value is 5 and the maximum value is 30.

Display_brightness (numeric)

Specifies the brightness value of the display. Value can be found in the published state on the display_brightness property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"display_brightness": ""}. To write (/set) a value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"display_brightness": NEW_VALUE}. The minimal value is 0 and the maximum value is 10.

Lock

The current state of this lock is in the published state under the child_lock property (value is LOCK or UNLOCK). To control this lock publish a message to topic zigbee2mqtt/FRIENDLY_NAME/set with payload {"child_lock": "LOCK"} or {"child_lock": "UNLOCK"}. To read the current state of this lock publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"child_lock": ""}.

Battery (numeric)

Remaining battery in %, can take up to 24 hours before reported.. Value can be found in the published state on the battery property. It's not possible to read (/get) or write (/set) this value. The minimal value is 0 and the maximum value is 100. The unit of this value is %.

Linkquality (numeric)

Link quality (signal strength). Value can be found in the published state on the linkquality property. It's not possible to read (/get) or write (/set) this value. The minimal value is 0 and the maximum value is 255. The unit of this value is lqi.