Adafruit
Adafruit MPRLS Ported Pressure Sensor Breakout - 0 to 25 PSI
The Adafruit MPRLS Ported Pressure Sensor Breakout measures absolute air pressure from 0 to 25 PSI (0–172 kPa) via a stainless steel port. Unlike typical bar...
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The Adafruit MPRLS Ported Pressure Sensor Breakout measures absolute air pressure from 0 to 25 PSI (0–172 kPa) via a stainless steel port. Unlike typical barometric sensors, the metal port lets you attach tubing to measure pressure inside sealed spaces — ideal for DIY assistive technology, vacuum monitoring, or pneumatic projects.
The sensor communicates over I2C and features a silicone-gel protected gauge with a pre-calibrated, compensated 24-bit ADC for accurate readings. The breakout includes a 3.3 V regulator and level shifting for compatibility with both 3.3 V and 5 V microcontrollers.
Key Features
- 0–25 PSI Range – Absolute pressure measurement (ambient is ~14.5 PSI at sea level)
- Stainless Steel Port – 3.7 mm long, 2.5 mm diameter for attaching tubing
- 24-Bit ADC – Pre-calibrated and temperature-compensated for accurate readings
- I2C Interface – Simple digital communication with any microcontroller
- 3.3 V and 5 V Compatible – On-board regulator and level shifting
- Silicone-Gel Protected – Gauge element protected from moisture and contaminants
Ideal For
- DIY assistive technology "sip and puff" interfaces
- Vacuum chamber and sealed container monitoring
- Pneumatic system pressure measurement
- Air flow and pressure differential experiments
Package Contents
- 1× Adafruit MPRLS Ported Pressure Sensor Breakout
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- breakout
- A breakout board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny contacts.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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