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Adafruit MPRLS Ported Pressure Sensor Breakout

Adafruit MPRLS Ported Pressure Sensor Breakout

MPN: 3965
Adafruit Industries LLC
MPRLS Pressure (Barometer/Barometric) Sensor Platform Evaluation Expansion Board
Active251 in stock
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Overview

The Adafruit 3965 is a breakout board featuring the Honeywell MPRLS ported pressure sensor, capable of measuring absolute pressure from 0 to 25 PSI. It includes an on-board level shifter and voltage regulator, making it compatible with both 3V and 5V logic systems. The ported design allows for easy attachment of tubing to measure pressure within sealed containers or vacuum chambers.

Why Choose This Part

This board simplifies the use of the Honeywell MPRLS by providing integrated I2C level shifting and a 3.3V regulator for plug-and-play use with microcontrollers like Arduino or Raspberry Pi. The stainless steel pressure port is robust and accommodates 3/32 inch ID silicone tubing for secure pneumatic connections.

Applications

Sip-and-Puff Interfaces
Creating assistive technology devices that translate breath pressure into computer or wheelchair commands.
Vacuum Chamber Monitoring
Measuring the internal pressure of small-scale laboratory vacuum systems via the integrated metal port.
Pressurized Container Testing
Monitoring gas or air pressure within closed vessels for industrial or hobbyist pneumatic projects.
Altitude and Weather Sensing
Utilizing the absolute pressure readings for barometric altimetry and localized weather station data.

Getting Started

Connect the board to your microcontroller via the I2C interface (SDA/SCL) and power it with 3V to 5V DC. Adafruit provides a dedicated Arduino library and CircuitPython/Python drivers to handle the sensor's 24-bit pressure conversion and status checks.

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