Xiaomi WSDCGQ12LM

Model	WSDCGQ12LM
Vendor	Xiaomi
Description	Aqara T1 temperature, humidity and pressure sensor
Exposes	temperature, humidity, pressure, device_temperature, battery, voltage, power_outage_count, linkquality
Picture

Notes

Adapter firmware

In order for this device to work (fully), at least the following firmware is required on your adapter:

• CC2530/CC2531: 20211115
• CC1352/CC2652: 20211114
• CC2538: 20211222
• Conbee II: 0x26720700

Note that if you have already paired the device you will need to repair it after upgrading your adapter firmware.

Pairing

Press and hold the reset button on the device for +- 5 seconds (until the blue light starts blinking). After this the device will automatically join. If this doesn’t work, try with a single short button press.

Note: When you fail to pair a device, try replacing the battery, this could solve the problem.

Troubleshooting: device stops sending messages/disconnects from network

Since Xiaomi devices do not fully comply to the Zigbee standard, it sometimes happens that they disconnect from the network. Most of the times this happens because of the following reasons:

• Device has a weak signal, you can see the signal quality in the published messages as linkquality. A linkquality < 20 is considered weak.
• Low battery voltage, this can even happen when the battery still appears full. Try a different battery.
• The device is connected through a router which cannot deal with Xiaomi devices. This is known to happen devices from: Centralite, General Electric, Iris, Ledvance, Legrand, OSRAM, Sylvania, SmartThings, Securifi. A possible solution is to connect the device directly to the central coordinator by pushing the reset button while being physically close to it.

More detailed information about this can be found here.

OTA updates

This device supports OTA updates, for more information see OTA updates.

Options

How to use device type specific configuration

• temperature_calibration: Calibrates the temperature value (absolute offset), takes into effect on next report of device. The value must be a number.

• temperature_precision: Number of digits after decimal point for temperature, takes into effect on next report of device. The value must be a number with a minimum value of 0 and with a with a maximum value of 3

• pressure_calibration: Calibrates the pressure value (absolute offset), takes into effect on next report of device. The value must be a number.

• pressure_precision: Number of digits after decimal point for pressure, takes into effect on next report of device. The value must be a number with a minimum value of 0 and with a with a maximum value of 3

• device_temperature_calibration: Calibrates the device_temperature value (absolute offset), takes into effect on next report of device. The value must be a number.

• humidity_precision: Number of digits after decimal point for humidity, takes into effect on next report of device. The value must be a number with a minimum value of 0 and with a with a maximum value of 3

• humidity_calibration: Calibrates the humidity value (absolute offset), takes into effect on next report of device. The value must be a number.

Exposes

Temperature (numeric)

Measured temperature value. Value can be found in the published state on the temperature property. It’s not possible to read (/get) or write (/set) this value. The unit of this value is °C.

Humidity (numeric)

Measured relative humidity. Value can be found in the published state on the humidity property. It’s not possible to read (/get) or write (/set) this value. The unit of this value is %.

Pressure (numeric)

The measured atmospheric pressure. Value can be found in the published state on the pressure property. It’s not possible to read (/get) or write (/set) this value. The unit of this value is hPa.

Device_temperature (numeric)

Temperature of the device. Value can be found in the published state on the device_temperature property. It’s not possible to read (/get) or write (/set) this value. The unit of this value is °C.

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 %.

Voltage (numeric)

Voltage of the battery in millivolts. Value can be found in the published state on the voltage property. It’s not possible to read (/get) or write (/set) this value. The unit of this value is mV.

Power_outage_count (numeric)

Number of power outages. Value can be found in the published state on the power_outage_count property. It’s not possible to read (/get) or write (/set) this value.

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.