The BMP581 is a next generation high precision barometric pressure and temperature sensor from Bosch Sensortec. It is designed for applications that require very accurate altitude and pressure measurements, such as drones, environmental monitoring, and precision navigation systems.
This module supports both I2C and SPI communication interfaces, allowing flexible integration with a wide range of microcontrollers. The breakout board includes onboard voltage regulation and logic level shifting, making it safe to use with both 3.3V and 5V systems. STEMMA QT Qwiic connectors are provided for easy plug and play, solder free connections.
This is a generic, no brand module and is compatible with Arduino, Raspberry Pi, ESP32, STM32, and other I2C or SPI capable platforms.
Key Features
High precision barometric pressure sensing
Integrated temperature measurement
Very low noise suitable for fine altitude changes
Supports I2C and SPI interfaces
Compatible with 3.3V and 5V logic levels
Onboard voltage regulator and level shifting
STEMMA QT Qwiic connector for easy connection
Compact breakout board design
Technical Specifications
| Parameter | Specification |
|---|
| Sensor Chip | BMP581 |
| Pressure Measurement Range | Typical barometric range |
| Relative Pressure Accuracy | ±0.4 Pa at 900–1100 hPa |
| Absolute Pressure Accuracy | ±30 Pa |
| Altitude Resolution | Approximately 3.3 cm |
| Temperature Accuracy | ±0.5 °C |
| Communication Interface | I2C or SPI |
| Operating Voltage | 3.3V to 5V |
| Logic Level | 3.3V and 5V compatible |
| Interface Connector | STEMMA QT Qwiic |
| Mounting Type | Breakout PCB |
How to Use
Connect the module using a STEMMA QT Qwiic cable or header pins.
Supply power from a 3.3V or 5V source.
Select I2C or SPI mode according to your wiring preference.
Read pressure and temperature data using supported libraries.
For accurate altitude calculation, a reference sea level pressure value should be provided in software.
Applications
Drone altitude stabilization
Precision altimeters
Environmental and weather monitoring
Wearable navigation devices
Indoor and outdoor positioning systems
IoT sensing platforms
Package Includes
Why Choose This Module
The BMP581 sensor module provides extremely high precision pressure measurements in a compact and easy to use form. With support for both I2C and SPI, wide voltage compatibility, and STEMMA QT Qwiic connectivity, it is an excellent choice for projects where measurement accuracy is critical.
Add high precision altitude and pressure sensing to your project with the BMP581 sensor module today.
