SI7021 Humidity Sensor

Introduction

Example code for I2C SI7021 sensor board

This code uses the following GPIO:

• #define I2C_SCL 5 // SCL

• #define I2C_SDA 4 // SCA

Build instructions

Use make and make flash to build and flash the firmware to the ESP8266 board.

References

• Source Code

• Sming (main)

• SI7020/SI7021 Environmental Sensors

SoC support

• esp32

• esp32c2

• esp32c3

• esp32s2

• esp32s3

• esp8266

• host

• rp2040

• rp2350