Skip to content

SHT30 temperature sensor~

This feature is included only in tasmota-sensors.bin

Wemos SHT30 Shield High Precision Humidity & Temperature (I2C) sensor

From the Wemos SHT30 shield specs the SDA pin on the SHT30 shield is connected to D2 and the SCL pin to D1.

Note: v1.0.0 is retired, but v2.0.0 has the same pinout.


As a default the SHT30 uses I2C address 0x45 and is user changeable by short-circuiting the two soldering pads at the lower left-side of the sensor (see image below marked green).

Also if no other I2C devices are connected to the Wemos it might be wise to short-circuit the three soldering pads at the upper left-side of the sensor (see image below marked red). This connects the pull-up resistors for I2C and biases the SCL and SDA pins to VCC. This is to avoid possible false detections of other sensors like VEML6070.

Tasmota Settings~

In the Configuration -> Configure Module page assign: 1. D2 GPIO4 to I2C SDA (6) 2. D1 GPIO5 to I2C SCL (5)

After reboot of the device the temperature and humidity are displayed.

Breakout Boards~