BMP280 Pressure and Temperature Sensor Module (Barometer)

BMP280 Digital Barometric Pressure and Temperature Sensor Module

 

The BMP280 Sensor Module is a high-performance, low-power digital sensor from Bosch Sensortec, designed to precisely measure atmospheric pressure and ambient temperature. It is the next-generation upgrade to the popular BMP180, boasting a smaller footprint, faster response, and lower noise.

This module is built on proven Piezo-resistive technology, offering exceptional absolute and relative accuracy. Because pressure directly correlates with altitude, the BMP280 is an excellent altimeter, commonly used for floor detection in indoor navigation and enhancing GPS accuracy. The breakout board simplifies interfacing, making it fully compatible with Arduino, Raspberry Pi, and any $3.3 \text{V}$ or $5 \text{V}$ logic microcontroller via selectable $\text{I}^2\text{C}$ or SPI interfaces.

 

🔧 Key Features

• High Accuracy: Pressure accuracy $\boldsymbol{\pm 1 \text{ hPa}}$; Temperature accuracy $\boldsymbol{\pm 1.0^\circ\text{C}}$.
   
• Altitude Measurement: Provides $\pm 1 \text{ meter}$ relative accuracy (noise level of $0.25 \text{m}$).
   
• Communication: Supports flexible $\text{I}^2\text{C}$ and SPI digital interfaces.
   
• Pressure Range: Measures from $\mathbf{300 \text{ hPa} \text{ to } 1100 \text{ hPa}}$ (equivalent to $+9000 \text{m} \text{ to } -500 \text{m}$).
   
• Low Power: Ultra-low current consumption ($\mathbf{2.7 \mu\text{A}}$ at $1 \text{ Hz}$) suitable for mobile/battery-powered devices.
   
• Digital Interface: Fully calibrated, providing easy-to-read digital output data.

💡 Applications

 

   
• Building Home Weather Stations and environmental monitoring systems.
   
• Drone/UAV altimetry and vertical velocity indication (rise/sink speed).
   
• Indoor Navigation and floor detection systems (e.g., in mobile phones).
   
• Enhancement of GPS navigation (dead-reckoning, time-to-first-fix).

⚙️ Technical Specifications

                                                                   

Sensor Model	BMP280
Measurement	Pressure and Temperature
Pressure Range	$300 \text{ hPa} \sim 1100 \text{ hPa}$
Temperature Range	$-40^\circ\text{C} \sim +85^\circ\text{C}$
Absolute Pressure Accuracy	$\pm 1 \text{ hPa}$
Digital Interface	$\text{I}^2\text{C} \text{ (3.4 MHz)}$ and $\text{SPI} \text{ (10 MHz)}$
Operating Voltage	$1.71 \text{V} \sim 3.6 \text{V}$ ($\mathbf{3.3 \text{V}}$ recommended)
Average Current Consumption	$\mathbf{2.7 \mu\text{A}}$ @ $1 \text{ Hz}$

 

📦 Package Includes

• 1 × BMP280 Pressure and Temperature Sensor Module (Barometer)