SPARKFUN MPL3115A2 Altitude/Pressure Sensor Breakout Board

The SPARKFUN MPL3115A2 Altitude/Pressure Sensor Breakout Board provides high-precision environmental sensing with a range of advanced features for embedded applications. This compact breakout board features the MPL3115A2 MEMs sensor, delivering 20-bit altitude measurement, 20-bit pressure measurement, and 12-bit temperature measurement, with output directly digitised by a high-resolution ADC and transmitted via I2C for easy integration with microcontrollers.

This sensor offers resolution down to 30cm (1ft) for altitude and fractions of a Pascal for pressure, ensuring accurate environmental monitoring. The breakout board includes an onboard low-dropout regulator (LDO), supporting a supply voltage range of 1.95V to 3.6V and a digital interface voltage of 1.6V to 3.6V, making it highly adaptable for low-power and battery-operated projects.

Key features include an autonomous data acquisition mode, a 32-sample FIFO buffer capable of logging data for up to 12 days, and a configurable sample rate from 1 second to 9 hours. The I2C interface (up to 400kHz) ensures fast and reliable communication with minimal wiring. All pins are conveniently exposed via a 0.1-inch pitch header for quick prototyping.

Key Specifications:

• Sensor Type: MEMS pressure/altitude sensor
• Measurement Resolution: 20-bit (altitude & pressure), 12-bit (temperature)
• Supply Voltage: 1.95V–3.6V (LDO-regulated)
• Interface Voltage: 1.6V–3.6V, I2C-compatible
• FIFO Buffer: 32 samples (up to 12 days of logging)
• Data Acquisition Rate: 1 sec–9 hours (configurable)
• Output Interface: I²C, operates up to 400kHz
• Header Pitch: 0.1-inch (2.54mm)

Ideal for weather stations, drones, IoT projects, and altitude-sensitive applications, this breakout board combines high accuracy with **low power consumption