BMP183 SPI Barometric Pressure & Altitude Sensor
Bosch BMP183 SPI barometric pressure and temperature sensor breakout; functionally equivalent to the BMP180 with 0.25 m altitude noise but uses SPI instead of I2C. On-board 3.3 V regulator and SPI level shifter for 3–5 V systems.
Pinout
- Vin
Power input. Adafruit states the board regulator takes 3-5VDC and should be powered at the microcontroller logic level.
Type · powerVoltage · 3-5VDC input, use the same logic level as the microcontroller - 3Vo
3.3V output from the onboard voltage regulator. Adafruit states up to 100mA can be drawn.
Type · powerVoltage · 3.3V output, up to 100mA - GND
Common ground for power and logic.
Type · groundVoltage · 0V - SCK
SPI clock input to the BMP183. Adafruit states SPI logic pins are 3-5V logic-level safe and use the Vin logic level.
Type · spiVoltage · 3-5V logic, follows Vin - SDO
Serial Data Out, microcontroller-in sensor-out, data sent from the BMP183 to the processor.
Type · spiVoltage · 3-5V logic, follows Vin
Start wiring
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: Vin, 3Vo, GND, SCK, SDO, SDI, CS. Schematik maps them to your board in the app.
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