Adafruit LPS25 Pressure Sensor - STEMMA QT / Qwiic

Discover the Adafruit LPS25 Pressure Sensor based on the ST LPS25HB chip, designed for precise absolute pressure measurements. Ideal for weather monitoring or altitude detection, it measures a wide range of 260-1260 hPa with 24-bit resolution and up to 25 readings per second.

This sensor breakout features level shifting and a regulator, making it compatible with both 3.3V and 5V logic level devices such as Raspberry Pi, Arduino, and Metro boards. Thanks to the inclusion of SparkFun Qwiic-compatible STEMMA QT connectors, it requires no soldering for easy plug-and-play connectivity using compatible cables.

Key advantages include high accuracy (±0.2 hPa after calibration), fast update rates, and ease of integration supported by Arduino and CircuitPython libraries with example code.

Features:

• Wide pressure range: 260-1260 hPa
• 24-bit pressure measurements at up to 25 Hz
• High accuracy: ±0.2 hPa after calibration
• Compatible with 3.3V and 5V logic levels
• Onboard level shifting and voltage regulator
• STEMMA QT / Qwiic connectors for no-solder I2C connection
• Fully supported by Arduino and CircuitPython libraries

Technical Specifications:

• Sensor Model: ST LPS25HB
• Measurement Range: 260-1260 hPa
• Data Resolution: 24-bit
• Output Rate: Up to 25 Hz
• Accuracy: ±0.2 hPa (after calibration), ±1 hPa (before calibration)
• Voltage: Supports 3.3V and 5V