The BMP280 Barometric Pressure Sensor Module measures atmospheric pressure and temperature on a single small PCB using the BMP280 chip (a precision MEMS sensor that detects air pressure and converts it to altitude). The bmp280 sensor runs on a wide supply voltage from 1.8V to 5V DC, covering both 3.3V ESP32 and 5V Arduino boards without a voltage regulator. It communicates through I2C (a two-wire bus protocol) or SPI (a four-wire high-speed bus) at up to 10 MHz.
The barometric pressure sensor uses oversampling (a technique that averages multiple readings to reduce noise in the pressure and temperature output). One non-obvious detail — pressure readings drift slightly with temperature changes inside enclosed enclosures. The honest limitation is that the altitude sensor accuracy depends heavily on a stable sea-level pressure reference, which varies with weather. The altitude sensor connects to Arduino board through standard I2C or SPI pins. Students and weather station project builders use it regularly. StemVolt provide sensor for pressure and temperature measurement output on I2C.
Related product:
- Check out the BMP180 Digital Barometric Pressure Sensor Module
Features:
- Supply voltage from 1.8V to 5V DC covers 3.3V and 5V boards without an additional level shifter
- I2C and SPI interface support up to 10 MHz allowing fast repeated sensor polling in real-time builds
- Dual measurement of pressure and temperature on one chip reduces component count in weather builds
- bmp280 datasheet confirms standard Arduino and microcontroller compatibility for direct library use
Technical specifications:
| Specification | Details |
|---|---|
| Sensor Type | Pressure and Temperature Sensor |
| Supply Voltage | 1.8 – 5V DC |
| Interface | I2C and SPI (up to 10 MHz) |
| Compatibility | Arduino and Microcontrollers |
Applications:
- Weather station project uses this sensor to display current atmospheric pressure on an LCD screen
- Altitude logger uses this to track height changes on a balloon or drone during outdoor flight
- BMP280 Barometric Pressure Sensor Module measures indoor room pressure for a climate monitoring dashboard
Package includes:
- 1 x BMP280 Barometric Pressure Sensor Module
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