Pack of 2 BMP280 Digital 3.3V Temperature Pressure Sensor

Key Features

• Package contains two (2) sensor modules.
• Measures both barometric pressure and temperature.
• Integrated Bosch BMP280 sensor chip.
• Dual communication interface support for I2C and SPI.
• Absolute pressure accuracy of ±1 hPa.
• Temperature accuracy of ±1.0°C.
• Designed for 3.3V power and logic levels.

Replaces / Cross-Reference Part Numbers

• GY-BMP280
• A higher-precision alternative for projects using the BMP180 or BMP085.

Compatibility & Fitment

• Compatible with microcontrollers and single-board computers that support I2C or SPI protocols.
• Directly interfaces with 3.3V systems such as ESP32, Raspberry Pi, and certain Arduino boards.
• Requires a logic level shifter for use with 5V microcontrollers like the Arduino Uno.
• Suitable for applications including weather monitoring, altitude tracking, and indoor navigation.

When to Replace

• Sensor fails to be detected on the I2C or SPI bus.
• Data readings are static, erratic, or consistently out of expected range.
• The module has visible physical damage, such as cracks or corrosion.
• An upgrade is required for improved measurement accuracy and stability.

Installation Tips

• Solder the included header pins for prototyping on a breadboard.
• For I2C mode, connect VCC, GND, SCL, and SDA.
• For SPI mode, connect VCC, GND, SCK, SDO, SDI, and CS.
• Install the sensor away from direct heat sources to ensure accurate temperature measurements.
• For stable pressure readings, protect the sensor from direct airflow and rapid temperature changes.
• Use available software libraries for the BMP280 to handle sensor communication and data compensation.