GY-BME280 BME280 Digital 3.3V Atmospheric Pressure Sensor - 2 Pack
Two BME280 3.3V atmospheric pressure sensor modules with included header pins.
Single BME280 3.3V atmospheric pressure sensor module with technical specification chart.
Two BME280 3.3V atmospheric pressure sensor modules showing top and bottom pin layouts with I2C and SPI interfacing.
BME280 atmospheric pressure sensor module with separate header pins on a promotional background.
Close-up of a single purple BME280 3.3V atmospheric pressure sensor module on an orange promotional background.
Infographic showing wide application examples for BME280 atmospheric pressure sensors in weather and industrial settings.
BME280 3.3V atmospheric pressure sensor module with header pins shown in a promotional lifestyle graphic.
Two BME280 3.3V atmospheric pressure sensor modules with included header pins.
Single BME280 3.3V atmospheric pressure sensor module with technical specification chart.
Two BME280 3.3V atmospheric pressure sensor modules showing top and bottom pin layouts with I2C and SPI interfacing.
BME280 atmospheric pressure sensor module with separate header pins on a promotional background.
Close-up of a single purple BME280 3.3V atmospheric pressure sensor module on an orange promotional background.
Infographic showing wide application examples for BME280 atmospheric pressure sensors in weather and industrial settings.
BME280 3.3V atmospheric pressure sensor module with header pins shown in a promotional lifestyle graphic.

GY-BME280 BME280 Digital 3.3V Atmospheric Pressure Sensor - 2 Pack

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$7.69
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Enter appliance or equipment model number to verify compatibility with this part

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.

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.

Compatible Models

Locate the model number of your appliance or equipment on the manufacturer's label and use it to check compatibility before ordering

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Sensor IC
Bosch BMP280 — LGA-8 Metal-Lid Package (2.0 x 2.5 x 0.95mm)
Supply Voltage
1.71V – 3.6V (3.3V nominal)
Interface
I²C (up to 3.4 MHz) / SPI (up to 10 MHz, 3-wire or 4-wire)
Pressure Range
300 – 1100 hPa (equivalent to -500m to +9000m altitude)
Pressure Accuracy
±1 hPa (absolute) / ±0.12 hPa (relative)
Temperature Range
-40°C to +85°C
Temperature Accuracy
±1.0°C
Altitude Accuracy
±1 meter
Current Consumption
2.7 µA @ 1Hz sampling / 0.1 µA sleep mode
Pin Pitch
2.54mm
Module Size (GY-BMP280)
11.5 x 15mm

FAQs

The BME280 is a high-precision environmental sensor designed for measuring barometric pressure, humidity, and ambient temperature. It is commonly used in weather stations, home automation systems, altitude tracking for drones, and indoor climate monitoring projects.
This module supports both I2C and SPI communication protocols. You can select the interface by configuring the pins on the board, allowing for flexible integration with microcontrollers like Arduino, ESP32, or Raspberry Pi.
This sensor is designed for 3.3V operation. While many development boards provide a 3.3V output, ensure your logic levels match this voltage to prevent damage to the sensor.
First, verify your wiring connections, specifically the SDA/SCL lines for I2C or the MOSI/MISO/SCK/CS lines for SPI. Ensure that the I2C address is correctly identified in your code—typically 0x76 or 0x77 depending on the state of the SDO pin. Finally, double-check that your power supply is stable at 3.3V.
The BME280 comes factory-calibrated for pressure, temperature, and humidity. Internal compensation registers are read by your microcontroller during initialization to provide accurate, real-time environmental data without the need for manual calibration.