BME68X Environmental Sensor

Bosch BME68X breakout measuring temperature, humidity, barometric pressure, and gas (IAQ/VOC); optional AI-assisted air quality function via I2C or SPI.

Logical pinout · physical placement not verified

2 grouped source records are expanded into separate logical pads where unambiguous; physical placement is not implied.

CS1
SPI chip select, active low. The Waveshare product page table marks this pin as NC when using I2C.
Type · SPI
ADDRMISO2
I2C address select, default high address 0x77 and 0x76 when the onboard ADDR pad is shorted. In SPI mode this is MISO.
Type · SPI, Signal
SCLSCK3
I2C clock, or SPI clock input.
Type · I2C, SPI
SDAMOSI4
I2C data, or SPI MOSI data input.
Type · I2C, SPI
GND5
Ground reference.
Type · Ground
VCC6
Power supply input.
Type · PowerVoltage · 3.3V/5V, per Waveshare product page pin table

Pin	Position	Type	Function	Voltage
CS	1	SPI	SPI chip select, active low. The Waveshare product page table marks this pin as NC when using I2C.
ADDRMISO	2	SPI, Signal	I2C address select, default high address 0x77 and 0x76 when the onboard ADDR pad is shorted. In SPI mode this is MISO.
SCLSCK	3	I2C, SPI	I2C clock, or SPI clock input.
SDAMOSI	4	I2C, SPI	I2C data, or SPI MOSI data input.
GND	5	Ground	Ground reference.
VCC	6	Power	Power supply input.	3.3V/5V, per Waveshare product page pin table

Logical pinout · physical placement not verified

2 grouped source records are expanded into separate logical pads where unambiguous; physical placement is not implied.

Pin details

6 connections

CS
SPI chip select, active low. The Waveshare product page table marks this pin as NC when using I2C.
SPI
1
ADDRMISO
I2C address select, default high address 0x77 and 0x76 when the onboard ADDR pad is shorted. In SPI mode this is MISO.
SPI, Signal
2
SCLSCK
I2C clock, or SPI clock input.
I2C, SPI
3
SDAMOSI
I2C data, or SPI MOSI data input.
I2C, SPI
4
GND
Ground reference.
Ground
5
VCC
Power supply input.
PowerVoltage · 3.3V/5V, per Waveshare product page pin table
6

Start wiring

I2C · SPI · Single data line · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: VCC, GND, ADDR / MISO, SCL / SCK, SDA / MOSI. Schematik maps them to your board in the app.

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