Adafruit MPL3115A2 Barometric Pressure/Altitude Sensor
Overview
The Adafruit 1893 is a breakout board for the NXP MPL3115A2, a high-precision pressure sensor capable of measuring barometric pressure, temperature, and altitude. It features an onboard 3.3V regulator and level shifting circuitry, allowing it to be used with both 3V and 5V logic microcontrollers. This module is designed for easy integration into projects requiring high-resolution altimetry or weather monitoring.
Why Choose This Part
The breakout simplifies prototyping by including a voltage regulator and level shifters for I2C communication. It offers a wide sensing range from 20 kPa to 110 kPa with high relative accuracy, making it suitable for sensitive altitude detection. The compact form factor and standard pin spacing allow for immediate use with solderless breadboards.
Applications
Getting Started
Connect the board to an Arduino or Raspberry Pi via the I2C interface (SDA and SCL pins). Use the Adafruit_MPL3115 library available in the Arduino Library Manager to quickly read pressure and temperature data. The board can be powered by any DC voltage between 3V and 5V.
