SparkFun

SparkFun Altitude/Pressure Sensor Breakout - MPL3115A2

Name: SparkFun Altitude/Pressure Sensor Breakout - MPL3115A2
Brand: SparkFun
SKU: SF-SEN-11084
Price: 33.85 AUD
Availability: InStock

All Products Breakouts New Arrivals Pressure & Altitude Sensors Sensors SparkFun Sensors & Modules

$33.85 |

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Life has its ups and downs, so why not measure them? The MPL3115A2 is a MEMS pressure sensor that provides Altitude data to within 30cm (with oversampling en...

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Life has its ups and downs, so why not measure them? The MPL3115A2 is a MEMS pressure sensor that provides Altitude data to within 30cm (with oversampling enabled).

The sensor outputs are digitized by a high resolution 24-bit ADC and transmitted over I2C, meaning it’s easy to interface with most controllers. Pressure output can be resolved with output in fractions of a Pascal, and Altitude can be resolved in fractions of a meter.
The device also provides 12-bit temperature measurements in degrees Celsius.

This breakout board makes it easy to prototype using this tiny device by breaking out the necessary pins to a standard 0.1" spaced header. The board also has all of the passive components needed to get the device functioning, so you can simply connect it to something that talks I2C and get to work!

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.
oversampling: Taking many measurements and combining them to reduce noise and improve the stability of a reading. It matters when you want smoother current or power measurements, though it can make updates slower.
UPS: An uninterruptible power supply is a battery-backed power system that keeps a device running when external power is unplugged or fails. For an embedded computer, it helps prevent sudden shutdowns that can corrupt files or interrupt a project.