2-pack BME280 3.3V Atmospheric Pressure Sensor

2-pack BME280 3.3V Atmospheric Pressure Sensor

Key Features

• Integrated sensor for measuring atmospheric pressure, humidity, and temperature.
• Dual communication interface support for both I2C and SPI protocols.
• Onboard voltage regulator and level shifter for compatibility with 3.3V and 5V logic.
• Pressure measurement range: 300 to 1100 hPa.
• Temperature measurement range: -40°C to +85°C.
• Humidity measurement range: 0% to 100% relative humidity.
• Package includes two pre-soldered sensor modules.

Replaces / Cross-Reference Part Numbers

• BME280
• GY-BME280
• Functional upgrade for BMP280, BMP180, and BMP085 sensors (adds humidity sensing and higher precision).

Compatibility & Fitment

• Designed for use with microcontrollers such as Arduino, ESP32, ESP8266, and Raspberry Pi.
• Suitable for a wide range of applications:
  • Weather stations and environmental monitoring
  • Indoor climate control and HVAC systems
  • Altimetry and barometry for drones or personal navigation
  • Home automation projects

When to Replace

• Sensor fails to provide readings or sends intermittent data.
• Readings for pressure, temperature, or humidity are static or inaccurate.
• Module is no longer detected on the I2C or SPI bus.
• Physical damage to the PCB or sensor element is visible.

Installation Tips

• Connect VCC to a 3.3V or 5V power supply and GND to ground.
• For I2C mode, connect the SCL and SDA pins to the microcontroller's corresponding I2C pins.
• For SPI mode, connect SCK, SDO, SDI, and CS pins to the microcontroller's SPI interface.
• To ensure accurate temperature data, position the sensor away from heat-generating components.
• Protect the sensing element from direct exposure to dust, liquids, and physical contact.
• Refer to the component datasheet for I2C addressing and register information.