Keyestudio BMP280 Module Digital Sensor Temperature Humidity Barometric Pressure

The Keyestudio BMP280 Module is a high-precision digital sensor module based on the Bosch BMP280 chip, designed for measuring barometric pressure and temperature. It features low power consumption, high accuracy, and a compact design, making it ideal for a wide range of environmental monitoring and IoT applications. The module supports both I2C and SPI communication interfaces, ensuring compatibility with popular development platforms like Arduino, Raspberry Pi, ESP32, and ESP8266.

Advantages

High precision with pressure accuracy of ±1.0 hPa and temperature accuracy of ±1.0 °C. Ultra-low power consumption (0.1 µA in sleep mode) extends battery life in portable projects. Compact board dimensions (15mm x 11.5mm) allow easy integration into tight spaces. Dual communication interfaces (I2C/SPI) provide flexible connectivity. Fast data output rate up to 125 Hz enables real-time monitoring.

Suitable for

• Weather stations and barometric pressure monitoring
• Altitude measurement and GPS enhancement
• Indoor/outdoor temperature sensing
• IoT environmental sensor nodes
• Educational projects and prototyping with Arduino, Raspberry Pi, ESP32/ESP8266

Key specifications

• Sensor Chip: Bosch BMP280
• Operating Voltage: 3.3V - 5V DC
• Communication Interface: I2C, SPI
• I2C Address Options: 0x76 (default), 0x77 (alternate)
• Pressure Measurement Range: 300 to 1100 hPa
• Pressure Absolute Accuracy: ±1.0 hPa
• Temperature Measurement Range: -40°C to +85°C
• Temperature Absolute Accuracy: ±1.0 °C
• Pressure Resolution: 0.01 hPa
• Temperature Resolution: 0.01 °C
• Low Power Consumption: 0.1 µA (Sleep Mode)
• Board Dimensions: 15mm x 11.5mm
• Pin Configuration: 6-pin header (VCC, GND, SCL, SDA, CSB, SDO)
• Data Output Rate: Up to 125 Hz

Recommendations

For best performance, use a stable power supply and avoid exposing the sensor to extreme conditions beyond its specified range. When using SPI, ensure proper wiring of CSB and SDO pins. Refer to the BMP280 datasheet for detailed register mapping and calibration procedures.