BMP280 I2C or SPI Barometric Pressure & Altitude Sensor
Bosch BMP280 barometric pressure and temperature sensor breakout with selectable I2C or SPI interface. Suitable for weather sensing and altitude estimation; successor to BMP085/BMP180.
Bosch BMP280 barometric pressure and temperature sensor breakout with selectable I2C or SPI interface. Suitable for weather sensing and altitude estimation; successor to BMP085/BMP180.
One grouped connection is listed in the table but omitted from the graphic until individual pins are available.
Input to the onboard regulator; Adafruit says power the breakout with 3-5VDC at the microcontroller logic level.
3.3V output from the onboard regulator; Adafruit says up to 100mA can be drawn.
Common ground for power and logic.
SPI clock input; also I2C clock line SCL according to the Adafruit pinout page.
SPI serial data out from the BMP280 to the processor.
SPI serial data input to the BMP280; also I2C data line SDA according to the Adafruit pinout page.
SPI chip select input; pull low to start an SPI transaction. Leave disconnected for I2C use per Adafruit guidance.
| Pin | Type | Function | Voltage |
|---|---|---|---|
| Vin | Power | Input to the onboard regulator; Adafruit says power the breakout with 3-5VDC at the microcontroller logic level. | 3-5VDC input |
| 3Vo | Power | 3.3V output from the onboard regulator; Adafruit says up to 100mA can be drawn. | 3.3V output, up to 100mA |
| GND | Ground | Common ground for power and logic. | 0V |
| SCKSCL | I2C, SPI | SPI clock input; also I2C clock line SCL according to the Adafruit pinout page. | 3-5V logic safe, use logic level on Vin |
| SDO | Signal | SPI serial data out from the BMP280 to the processor. | 3-5V logic safe, use logic level on Vin |
| SDISDA | I2C, Signal | SPI serial data input to the BMP280; also I2C data line SDA according to the Adafruit pinout page. | 3-5V logic safe, use logic level on Vin |
| CS | SPI | SPI chip select input; pull low to start an SPI transaction. Leave disconnected for I2C use per Adafruit guidance. | 3-5V logic safe, use logic level on Vin |
One grouped connection is omitted from the graphic until individual pins are available.
Input to the onboard regulator; Adafruit says power the breakout with 3-5VDC at the microcontroller logic level.
3.3V output from the onboard regulator; Adafruit says up to 100mA can be drawn.
Common ground for power and logic.
SPI clock input; also I2C clock line SCL according to the Adafruit pinout page.
SPI serial data out from the BMP280 to the processor.
SPI serial data input to the BMP280; also I2C data line SDA according to the Adafruit pinout page.
SPI chip select input; pull low to start an SPI transaction. Leave disconnected for I2C use per Adafruit guidance.
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: Vin, 3Vo, GND, SCK / SCL, SDO, SDI / SDA, CS. Schematik maps them to your board in the app.
DHT/AHT sensors, SHT-series humidity chips, BMP and LPS barometers, BME combined sensors, DS18B20 probes, thermocouple amplifiers and non-contact MLX IR sensors — about 165 listings, very different accuracy classes.
Adafruit AHT20 Temperature & Humidity Sensor Breakout Board visual previewAdafruit AHT20 Temperature & Humidity Sensor Breakout Board
Adafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor visual previewAdafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor
Adafruit BMP580 I2C or SPI Temperature and Pressure Sensor visual previewAdafruit BMP580 I2C or SPI Temperature and Pressure Sensor
Adafruit BMP581 I2C / SPI Temperature and Pressure Sensor visual previewAdafruit BMP581 I2C / SPI Temperature and Pressure Sensor
Adafruit BMP585 Ported I2C / SPI Temperature and Pressure Sensor visual previewAdafruit BMP585 Ported I2C / SPI Temperature and Pressure Sensor
Adafruit Chainable DS18B20 Extender Breakout visual previewAdafruit Chainable DS18B20 Extender Breakout
Adafruit HDC3022 Precision Temperature & Humidity Sensor visual previewAdafruit HDC3022 Precision Temperature & Humidity Sensor
Adafruit HTS221 Temperature & Humidity Sensor Breakout - STEMMA QT / Qwiic visual previewAdafruit HTS221 Temperature & Humidity Sensor Breakout - STEMMA QT / Qwiic
Adafruit HTU21D-F Temperature & Humidity Sensor Breakout - STEMMA QT visual previewAdafruit HTU21D-F Temperature & Humidity Sensor Breakout - STEMMA QT
Adafruit HTU31 Temperature & Humidity Sensor Breakout - STEMMA QT / Qwiic visual previewAdafruit HTU31 Temperature & Humidity Sensor Breakout - STEMMA QT / Qwiic
Adafruit LPS25 Pressure Sensor - STEMMA QT / Qwiic visual previewAdafruit LPS25 Pressure Sensor - STEMMA QT / Qwiic
Adafruit LPS35HW Water Resistant Pressure Sensor visual previewAdafruit LPS35HW Water Resistant Pressure Sensor
BOSON: Heart Rate Monitor Sensor i20 visual previewUART/I2C fingerprint modules, MAX30102 PPG breakouts, and analog ECG/EMG front-ends for access control and hobby biometric sensing.
Sensors · Biometric sensors · 26 parts
0.3M Pixel Serial JPEG Camera Module visual previewPi CSI modules, USB cameras, MCU-class OV2640/OV5640 boards, on-camera AI like HuskyLens and OpenMV, and thermal or ToF imagers — over 130 listings across very different pipelines.
Sensors · Cameras & vision · 141 parts
0.28 Inch LED Digital DC Voltmeter - Green visual previewINA-series I2C monitors, Hall-effect sensors like the ACS723 and Gravity 20A/50A boards, and non-invasive CT clamps for everything from 3.3V rail telemetry to mains current sensing.
Sensors · Current & voltage · 25 parts
25m Long Distance ToF Laser Sensor (±3cm Accuracy, 100Hz, 100K LUX Resistant) visual previewAbout 180 listings spanning VL53-series ToF breakouts, HC-SR04 and MaxSonar ultrasonics, 360° triangulation LiDARs, IR proximity sensors, 24GHz mmWave presence detection and laser break-beam sensors.
Sensors · Distance sensors · 177 parts