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BMP280 I2C Barometric Pressure Sensor - 4-Pin
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BMP280 I2C Barometric Pressure Sensor - 4-Pin
The BMP280 I2C Barometric Pressure Sensor (4-pin) is a compact sensor module based on the BMP280 chip, designed for the digital measurement of atmospheric pressure and ambient temperature.
The module features an I2C communication interface and can be easily connected to microcontroller systems using only four pins. Thanks to the onboard voltage regulator, logic-level shifting circuitry, and I2C pull-up resistors, it is compatible with both 3.3V and 5V systems.
It is suitable for direct integration with 3.3V systems—such as the ESP32, ESP8266, and Raspberry Pi Pico—as well as boards that use 5V logic, like the Arduino UNO.Specifications
- Sensor: BMP280
- Communication: I2C
- Module Connection: 4 pins
- Module Supply Voltage: 3.3V or 5V
- Logic Level Compatibility: 3.3V / 5V
- Pressure Measurement Range: 300–1100 hPa
- Absolute Pressure Accuracy: Typically ~±1 hPa
- Relative Pressure Accuracy: Typically ±0.12 hPa
- Relative Altitude Precision: Approximately ±1 m (with appropriate processing)
- Pressure Data Resolution: 0.01 hPa
- Temperature Measurement Range: -40°C to +85°C
- Temperature Data Resolution: 0.01°C
- Average Current Consumption: ~2.7 μA at 1 Hz (in ultra-low-power mode)
- Output Type: Digital
- Pin Pitch: 2.54 mm
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