A breakout board for ST's LPS331AP digital barometric pressure sensor. This sensor measures absolute pressure from 260 to 1260 mbar with excellent accuracy (±2 mbar), making it ideal for altitude estimation, weather monitoring, and indoor navigation applications.

The board includes an onboard 3.3V regulator and level shifters, allowing it to work with both 3.3V and 5V systems. Standard 0.1" pin spacing makes it breadboard-friendly.

Key Features

• High Accuracy – ±2 mbar absolute accuracy over temperature
• Low Noise – 0.02 mbar RMS in high-resolution mode
• Wide Range – Measures 260 to 1260 mbar
• Dual Interface – Supports both I²C and SPI
• Voltage Flexible – Works with 2.5V to 5.5V input
• Breadboard Friendly – 0.1" (2.54mm) pin spacing

Ideal For

• Altitude measurement for drones and rockets
• Weather station projects
• Indoor floor-level detection
• Barometric data logging
• GPS altitude augmentation

Specifications

• Sensor: ST LPS331AP
• Pressure Range: 260–1260 mbar (26–126 kPa)
• Absolute Accuracy: ±2 mbar
• RMS Noise: 0.02 mbar (high-resolution mode)
• Interface: I²C or SPI
• Input Voltage: 2.5V to 5.5V
• Onboard Regulator: 3.3V
• Pin Spacing: 0.1" (2.54mm)

Package Contents

• 1× LPS331AP Pressure Sensor Breakout Board