ACEBOTT QB103 BMP280 Barometric Pressure Sensor Module - I2C Output

The module is designed for dual-voltage operation and can be powered directly by either 3.3V or 5V DC power supplies. The onboard logic level shifting ensures the I2C communication lines are compatible with both 3.3V and 5V microcontroller logic levels without risk of damage.

The module uses a standard I2C interface with four pins: VCC, GND, SCL (serial clock), and SDA (serial data). Connect these to the corresponding pins on your microcontroller (e.g., Arduino, Raspberry Pi). The default I2C address for the BMP280 is typically 0x76 or 0x77, and you can use libraries from Bosch or Adafruit to easily read pressure and temperature data.

The measurement temperature range (0°C to 65°C) specifies the ambient temperatures over which the sensor can accurately measure temperature. The operating temperature range (-10°C to +50°C) defines the environmental conditions in which the entire module, including its PCB and components, is guaranteed to function correctly without damage or performance degradation.

Yes, the sensor provides highly accurate absolute atmospheric pressure readings, which can be converted to altitude using the barometric formula. This is commonly used in drone flight controllers, hiking GPS units, and indoor navigation systems to determine relative height changes, provided a reference SEA-level pressure is known or calibrated.