Adafruit LPS25 Pressure Sensor - STEMMA QT / Qwiic - LPS25HB

The LPS25 pressure sensor is a compact breakout designed for accurate air pressure measurements in weather stations, altitude sensing, and environmental monitoring projects. It measures absolute pressure across a 260-1260 hPa range and provides 24-bit measurement data for precise and stable readings.

With its onboard voltage regulator and level shifting, this module works with both 3.3V and 5V logic systems. That makes it easy to integrate with a wide range of microcontroller platforms. The STEMMA QT and Qwiic connectors simplify I2C wiring, while SPI support is also available for applications that need that interface.

This breakout is a practical option for prototyping and permanent integration in electronics projects where reliable pressure sensing matters. Its compact layout, straightforward connectivity, and broad compatibility make this board suitable for both entry-level and advanced development work.

Product features

• Absolute barometric pressure sensor on breakout board
• Supports both I2C and SPI communication
• STEMMA QT and Qwiic connector for fast integration
• Compatible with 3.3V and 5V logic levels
• Built-in voltage regulator and level shifting
• Suitable for weather, altitude, and environmental sensing

Technical specifications

• Measurement range: 260-1260 hPa
• Resolution: 24-bit pressure data
• Data rate: up to 25Hz
• Accuracy: 0.2 hPa after calibration, ±1 hPa before calibration
• Supply voltage: 3-5VDC
• 3Vo output: up to 100mA
• Interfaces: I2C, SPI
• I2C addresses: 0x5D or 0x5C