0 Wemos D1 Mini and SHT30 Shield High Precision Humidity & Temperature

Michael Ingraham edited this page 2019-06-14 14:30:58 -04:00

Table of Contents

• SHT30 Shield High Precision Humidity & Temperature (I2C)
• I2C address & Biasing SDA / SDA
• Tasmota Configuration
• Tasmota Main

SHT30 Shield High Precision Humidity & Temperature (I²C)

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 pining.

I²C address & Biasing SDA / SDA

As per default the sht30 uses I²C address 0x45 and is user changeable by short-circuit 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 Configuration

In the Configuration -> Configure Module page, select the following:

• D2 GPIO4 : 06 I²C SDA
• D1 GPIO5 : 05 I²C SCL

Tasmota Main

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

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