Wemos D1 Mini and SHT30 Shield High Precision Humidity & Temperature - seurat-atreides/Sonoff-Tasmota GitHub Wiki
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.
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.
In the Configuration -> Configure Module page, select the following:
- D2 GPIO4 : 06 I2C SDA
- D1 GPIO5 : 05 I2C SCL
After reboot of the device the temperature and humidity are displayed.
