The BMP280 is a tiny and efficient pressure sensor designed for small devices. It’s built to be tough, with a metal casing, and it doesn’t drain much power, making it perfect for battery-powered gadgets.
This sensor builds on the success of its predecessor, the BMP180, and uses Bosch’s reliable pressure sensor technology. It’s known for being accurate, stable over time, and resistant to electromagnetic interference. These qualities make it great for applications that require precise pressure measurements.
The BMP280 offers various settings that allow you to adjust its performance. You can tweak things like power usage, measurement accuracy, and filtering to match your specific needs. To make it even easier for developers, there are ready-made settings for common use cases, so you can get started quickly.
Connecting GY-BMP280 to Arduino Uno via a level shifter module
In a nutshell, the BMP280 is a small, robust pressure sensor ideal for compact devices. It combines Bosch’s trusted technology with customization options and ready-made settings, making it a smart choice for applications that demand accurate pressure readings while being mindful of space and power constraints.
Schematics Diagram: Arduino Uno with GY-BMP280
Wiring
| Label | Meaning | Connection |
| VCC | Power source | Connect to 3.3V of system |
| GND | Ground | Connect GND |
| SCL | I2C serial clock | Connect to SCL or A5 pin, with level shifter |
| SDA | I2C serial data | Connect to SDA or A4 pin, with level shifter |
| CSB | Chip select (SPI Interface) | No connection |
| SD0 | Serial Data Out (SPI Interface) | No connection |
FEATURES
- Smaller footprint, lower power consumption, lower noise measurements, lower RMS noise.
- Higher resolutions for pressure and temperature, higher measuring rate.
- Easy-to-use Crowtail Compatible Interface.
- Can be used as an altimeter with an accuracy of ±1 meter.
SPECIFICATIONS
- Pressure ranges: 300-1100 hPa (+ 9000m above & -500m below sea level
- Operating Current: 2.7µA @ 1 Hz sampling frequency
- High precision: at low-power mode, the resolution is 0.06hPa (0.5 meters);
- Operating voltage: 1.71V ~ 3.5V
- Relative Accuracy: ±0.12 hPa, equiv. to ±1 m (@25℃)
- Temperature Measurement Range: 0 ~65 ℃
- Temperature Accuracy: 0.01℃
- Operating Temperature range:：-40℃~+85℃
- Communication interface: I2C or SPI
- Dimension : 16 mm (L) x 12 mm (W) x 2 mm (H)
DOCUMENT
NOTE
- This module comes with an unsoldered pin.
SHIPPING LIST
- 1 x GY-BMP280-3.3 Pressure Sensor Module
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