This tutorial will walk you through the process of wiring the ADXL345 to your Raspberry Pi. It also goes through the steps on how to implement Adafruit’s ADXL34x library to talk with the device. Both are relatively simple processes.
The ADXL345 is a low power, 3-axis (It tracks both X, Y and Z accelerations) MEMS accelerometer that utilizes the I2C and SPI serial interfaces.
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