Adafruit 2651 Barometric Pressure & Altitude Sensor
Overview
The Adafruit 2651 is a development breakout that provides barometric pressure and altitude sensing for prototyping and embedded projects. It exposes the sensor signals on a small PCB with breakouts and connectors to simplify wiring and integration into microcontroller or single-board computer projects. The board is intended for hobbyist and engineering use where quick evaluation or integration of pressure/altitude data is needed.
Why Choose This Part
As a ready-made breakout, the 2651 removes the need to handle the raw sensor package and associated passives, making wiring and breadboarding straightforward. Its small form factor and breakout headers speed prototyping and tidy integration into development rigs. Adafruit breakouts are commonly supported by example code and community resources, which reduces integration time compared with starting from a bare sensor die.
Applications
Getting Started
Begin by connecting the breakout to a microcontroller or single-board computer using the exposed header pins or compatible plug-in cable. Adafruit typically provides example code and libraries for common platforms (Arduino, CircuitPython, Python on Raspberry Pi) to read pressure and altitude values; search Adafruit Learn or GitHub for the product page and code examples. Use a stable power source and keep the sensor exposed to ambient air (avoid covering the sensor opening) when taking measurements.
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