
Bosch BME680 breakout measuring temperature, barometric pressure, relative humidity, and indoor air quality (VOC) over I2C or SPI. Compatible with Raspberry Pi and Arduino.

Power on Raspberry Pi-compatible header footprint
I2C data
I2C clock
Ground
Power on Qwiic/STEMMA QT connector
Ground on Qwiic/STEMMA QT connector
I2C data on Qwiic/STEMMA QT connector
I2C clock on Qwiic/STEMMA QT connector
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| 3V3 | Raspberry Pi physical pin 1 / breakout header | Power | Power on Raspberry Pi-compatible header footprint | 3.3V |
| SDA | Raspberry Pi physical pin 3 / breakout header | I2C | I2C data | 3.3V or 5V-compatible board logic |
| SCL | Raspberry Pi physical pin 5 / breakout header | I2C | I2C clock | 3.3V or 5V-compatible board logic |
| GND | Raspberry Pi physical pin 9 / breakout header | Ground | Ground | 0V |
| QwiicSTEMMA QT VCC | Qwiic/STEMMA QT connector | Power | Power on Qwiic/STEMMA QT connector | 3.3V or 5V-compatible board supply |
| QwiicSTEMMA QT GND | Qwiic/STEMMA QT connector | Power | Ground on Qwiic/STEMMA QT connector | 0V |
| QwiicSTEMMA QT SDA | Qwiic/STEMMA QT connector | Signal | I2C data on Qwiic/STEMMA QT connector | logic I2C |
| QwiicSTEMMA QT SCL | Qwiic/STEMMA QT connector | Signal | I2C clock on Qwiic/STEMMA QT connector | logic I2C |
Power on Raspberry Pi-compatible header footprint
I2C data
I2C clock
Ground
Power on Qwiic/STEMMA QT connector
Ground on Qwiic/STEMMA QT connector
I2C data on Qwiic/STEMMA QT connector
I2C clock on Qwiic/STEMMA QT connector
I2C · Analog · UART · 3.3 – 5 V · Breakout
Waveshare lists MQ-2 for combustible gases and smoke, MQ-3 for alcohol, and MQ-135 for mixed indoor pollutants such as NH3, NOx, alcohol,…
Module pins: 3V3, GND, Qwiic/STEMMA QT VCC, Qwiic/STEMMA QT GND, SDA, SCL, Qwiic/STEMMA QT SDA, Qwiic/STEMMA QT SCL. Schematik maps them to your board in the app.
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