BMP280 Barometric Pressure & Altitude Sensor – I2C / SPI

The BMP280 is a compact barometric pressure and altitude sensor with I2C interface, designed for embedded and mobile applications. It measures atmospheric pressure and calculates relative altitude, supporting a wide temperature range. The sensor features low power consumption and fast response time, making it suitable for weather monitoring, altitude tracking, and environmental sensing in microcontroller platforms. It supports I2C and SPI (3- or 4-wire) communication, allowing easy integration with Arduino, Raspberry Pi, and other embedded systems. The device is soldered onto a PCB for reliable electrical and mechanical connections. Features Pressure Measurement: Provides accurate atmospheric pressure readings in hPa. Altitude Calculation: Computes relative altitude based on barometric pressure. Temperature Range: Operates reliably across a wide environmental temperature range. Interface Compatibility: Supports I2C and SPI (3- or 4-wire) communication protocols. Low Power Consumption: Optimized for battery-powered and mobile applications. Fast Response Time: Enables rapid updates for real-time monitoring. PCB Mounting: Soldered onto a PCB for secure electrical and mechanical connections. Compact Design: Lightweight and small form factor suitable for embedded systems. Specifications Sensor Type | BMP280 Barometric Pressure and Altitude Sensor Pressure Range | 300–1100 hPa Altitude Range | Calculated based on barometric pressure Temperature Range | ?40 °C to +85 °C Interface | I2C (standard), SPI (3- or 4-wire) Operating Voltage | 1.8–3.6 V DC Power Consumption | Low, optimized for mobile and battery-powered devices Measurement Accuracy | ±1 hPa typical for pressure Response Time | Fast, suitable for real-time monitoring Dimensions | Approx. 15.5mm × 12 mm × 1 mm (sensor module) Mounting | Soldered on PCB for electrical and mechanical stability Weight | < 2 g Links - BMP280 Datasheet Tutorials - BMP280 Arduino: Complete Barometric Pressure Sensor Guide