BME280 Environmental Sensor
Bosch BME280 breakout measuring temperature, humidity, and barometric pressure via I2C or SPI.
Pinout
2 grouped source records are expanded into separate logical pads where unambiguous; physical placement is not implied.
- VCCPin 1 per Waveshare schematic header H1
Power input for the BME280 environmental sensor module
Type · PowerVoltage · 3.3V/5V - GNDPin 2 per Waveshare schematic header H1
Ground reference
Type · GroundVoltage · 0V - SDAMOSIPin 3 per Waveshare schematic header H1
I2C SDA in default mode, or SPI MOSI when SPI mode is used
Type · I2C, SPIVoltage · logic level translated, 3.3V/5V compatible module - SCLSCKPin 4 per Waveshare schematic header H1
I2C SCL in default mode, or SPI SCK when SPI mode is used
Type · I2C, SPIVoltage · logic level translated, 3.3V/5V compatible module - ADDRMISOPin 5 per Waveshare schematic header H1
I2C address select in I2C mode, high/default gives 0x77 and low/GND gives 0x76; SPI MISO in SPI mode
Type · SPI, ControlVoltage · logic level translated, 3.3V/5V compatible module - CSPin 6 per Waveshare schematic header H1
Not connected for I2C; active-low SPI chip select for SPI mode
Type · SPIVoltage · logic level translated, 3.3V/5V compatible module
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VCC | Pin 1 per Waveshare schematic header H1 | Power | Power input for the BME280 environmental sensor module | 3.3V/5V |
| GND | Pin 2 per Waveshare schematic header H1 | Ground | Ground reference | 0V |
| SDAMOSI | Pin 3 per Waveshare schematic header H1 | I2C, SPI | I2C SDA in default mode, or SPI MOSI when SPI mode is used | logic level translated, 3.3V/5V compatible module |
| SCLSCK | Pin 4 per Waveshare schematic header H1 | I2C, SPI | I2C SCL in default mode, or SPI SCK when SPI mode is used | logic level translated, 3.3V/5V compatible module |
| ADDRMISO | Pin 5 per Waveshare schematic header H1 | SPI, Control | I2C address select in I2C mode, high/default gives 0x77 and low/GND gives 0x76; SPI MISO in SPI mode | logic level translated, 3.3V/5V compatible module |
| CS | Pin 6 per Waveshare schematic header H1 | SPI | Not connected for I2C; active-low SPI chip select for SPI mode | logic level translated, 3.3V/5V compatible module |
2 grouped source records are expanded into separate logical pads where unambiguous; physical placement is not implied.
Pin details
6 connections- VCCPin 1 per Waveshare schematic header H1
Power input for the BME280 environmental sensor module
PowerVoltage · 3.3V/5V - GNDPin 2 per Waveshare schematic header H1
Ground reference
GroundVoltage · 0V - SDAMOSIPin 3 per Waveshare schematic header H1
I2C SDA in default mode, or SPI MOSI when SPI mode is used
I2C, SPIVoltage · logic level translated, 3.3V/5V compatible module - SCLSCKPin 4 per Waveshare schematic header H1
I2C SCL in default mode, or SPI SCK when SPI mode is used
I2C, SPIVoltage · logic level translated, 3.3V/5V compatible module - ADDRMISOPin 5 per Waveshare schematic header H1
I2C address select in I2C mode, high/default gives 0x77 and low/GND gives 0x76; SPI MISO in SPI mode
SPI, ControlVoltage · logic level translated, 3.3V/5V compatible module - CSPin 6 per Waveshare schematic header H1
Not connected for I2C; active-low SPI chip select for SPI mode
SPIVoltage · logic level translated, 3.3V/5V compatible module
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VCC, GND. Schematik maps them to your board in the app.
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