Datasheet

Overview
You can detect motion, tilt and basic orientation with a digital accelerometer - and the
MMA8451 is a great accelerometer to start with. It's low cost, but high precision with 14-bit
ADC. It has a wide usage range, from +-2g up to +-8g yet is easy to use with Arduino or
another microcontroller
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 i 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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