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July 30, 2014 AT 4:23 pm

NEW PRODUCT – Adafruit Triple-Axis Accelerometer – ±2/4/8g @ 14-bit – MMA8451

 

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NEW PRODUCT –  Adafruit Triple-Axis Accelerometer – ±2/4/8g @ 14-bit – MMA8451

So many accelerometers and so little time! We’ve expanded our accelerometer selection even more with this high-precision and inexpensive MMA8451 Triple-Axis Accelerometer w/ 14-bit ADC. You can detect motion, tilt and basic orientation with a digital accelerometer – and the MMA8451 is a great accelerometer to start with. It has a wide usage range, from +-2g up to +-8g yet is easy to use with Arduino or another micro controller.

The MMA8451 is a miniature little accelerometer from Freescale, who are (by this point) masters at the accelerometer-design game. It’s designed for use in phones, tablets, smart watches, and more, but works just as well in your Arduino project. Of the MMA8451/MMA8452/MMA8453 family, the MMA8451 is the most precise with a built in 14-bit ADC. The accelerometer also has built in tilt/orientation detection so it can tell you whether your project is being held in landscape or portrait mode, and whether it is tilted forward or back.

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This sensor communicates over I2C so you can share it with a bunch of other sensors on the same two I2C pins. There’s an address selection pin so you can have accelerometers share an I2C bus. Please note this chip requires repeated-start I2C support (in case you are looking to port this to another processor)

To get you going fast, we spun up a breakout board for this little guy. Since it’s a 3V sensor, we add a low-dropout 3.3V regulator and level shifting circuitry on board. That means its perfectly safe for use with 3V or 5V power and logic. It’s fully assembled and tested.  Comes with 8-pin 0.1″ standard header in case you want to use it with a breadboard or perfboard.  Two 2.5mm (0.1″) mounting holes for easy attachment.

Check out our getting-started writeup for this little breakout at the Adafruit Learning System

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In stock and shipping now!


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