Fermion: SHT31 Digital Temperature & Humidity Sensor (Breakout)

Digital sensor with precise temperature and humidity detection, low power use, and I2C communication. Compatible with various 3.3V/5V controllers.

SDAOfficial table 2 row 1
Data line
Type · i2c
SCLOfficial table 2 row 2
Clock Line
Type · i2c
GNDOfficial table 2 row 3
Negative
Type · ground
VCCOfficial table 2 row 4
Positive
Type · power
INTOfficial table 2 row 5
Alarm Interrupt
Type · digital io

Start wiring

I2C

Confirm the data interface matches your host board.

Module pins: VCC, GND, SDA, SCL. Schematik maps them to your board in the app.

Related groups

4 groups

Air quality

Choose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.

Sensors · Gas & air-quality sensors · 31 parts

Temp and humidity

DHT11, DHT22/AM2302, and DHT20/AHT20 sensors solve the same broad job, but only some are acceptable substitutes in the same circuit.

Sensors · Environment sensors · 19 parts

Environment sensors

Choose between temperature-only, temperature/humidity, pressure and indoor air-quality modules without treating every environmental sensor as a drop-in substitute.

Sensors · Environment sensors · 8 parts

Light and colour

Photoresistors and color sensors both respond to light, but they expose very different signals and are not sensible drop-in substitutes.

Sensors · Light & color sensors · 7 parts

Pin	Position	Type	Function
SDA	Official table 2 row 1	i2c	Data line
SCL	Official table 2 row 2	i2c	Clock Line
GND	Official table 2 row 3	ground	Negative
VCC	Official table 2 row 4	power	Positive
INT	Official table 2 row 5	digital io	Alarm Interrupt
RST	Official table 2 row 6	digital io	Reset

Pinout

Start wiring

Air quality

Temp and humidity

Environment sensors

Light and colour