The BMP280 pressure sensor module is a compact yet powerful environmental sensor designed to measure atmospheric pressure with high precision while also providing temperature data. Built around the Bosch BMP280 chip, this breakout board supports I²C and SPI communication, making it perfect for integration with Arduino, ESP32, Raspberry Pi, and other microcontroller platforms. Whether you’re building a weather station, an altimeter, or a navigation system, this sensor delivers reliable data and low power consumption.

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Key Features & Advantages

• Accurate Pressure & Temperature Measurement
  The BMP280 provides high-resolution barometric pressure readings in the typical range of 300–1100 hPa, along with precise temperature measurements.

• Low Power Consumption
  Consuming only a few microamps at low sampling rates, the sensor is ideal for battery-powered and portable devices.

• Flexible Power Supply
  Operates from approximately 1.71 V to 3.6 V, making it suitable for 3.3 V microcontroller systems and low-power applications.

• Dual Interface: I²C and SPI
  Supports both I²C (up to around 3.4 MHz) and SPI (up to around 10 MHz), giving you flexibility in wiring and project design.

• High Altitude Precision
  With a relative pressure accuracy of about ±0.12 hPa, the sensor can estimate altitude changes with around ±1 meter accuracy under ideal conditions.

• Wide Operating Temperature Range
  Functional from –40 °C to +85 °C, ensuring reliable performance in a variety of environmental conditions.

• Compact and Robust
  The BMP280 chip is tiny and highly efficient, making it ideal for wearables and compact IoT devices.

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Ideal Applications

• Weather monitoring systems

• Digital barometers

• Altimeters for drones, hiking equipment, and model rockets

• GPS enhancement for altitude accuracy

• Indoor navigation and floor detection

• Smart home environmental monitoring

• Data loggers and IoT sensing nodes

• Portable and wearable environmental devices

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Technical Specifications

• Pressure Measurement Range: ~300 to ~1100 hPa

• Absolute Accuracy: Typically around ±1 hPa

• Relative Accuracy: About ±0.12 hPa (≈ ±1 m altitude)

• Temperature Range: –40 °C to +85 °C

• Supply Voltage: 1.71 V – 3.6 V (commonly 3.3 V)

• Communication Interface: I²C and SPI

• Current Consumption: As low as ~2.7 µA at 1 Hz sampling

• Package Type: 8-pin LGA with a metal lid

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Integration Tips

• Power the module with 3.3 V for stable performance.

• Use I²C for simple wiring or SPI when multiple devices share the bus.

• Use established libraries for rapid development and accurate readings.

• Calibrate altitude readings by setting the local sea-level pressure.

• Reduce sampling rate for low-power, battery-driven applications.

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Why Choose This Module

The BMP280 Pressure Sensor Module offers exceptional precision, efficiency, and versatility in a small footprint. Whether you’re creating a smart environment monitor, enhancing navigation accuracy, or developing a custom IoT device, the BMP280 provides the dependable atmospheric and temperature data your project needs.