The Magic Wand Example
Introduction
The magic wand example shows how to detect gestures using an accelerometer. Different types of accelerometers are easily available:
- The ADXL345 is a tree axis digital accelerometer by Analog Devices
- The MPU6050 is a six axis device (Gyro and Accelerometer) from Ivensense. It is described by it datasheet and the register description.
- The LIS2dH MEMS digital output motion sensor from ST Microelectronics is an ultra low power high performance 3 axis accelerometer.
I mounted the accelerometer onto a WeMos D1 prototype board. With the triple base and the CPU this makes up for a stable assemble that can easily be moved with cable contact problems.
Providing a training data set
In order to provide a training data set we must be able to record gestures. Therefore a driver for the accelerometer is needed as well as a program that recognizes movement and writes the accelerometer data on a file.
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Uli Raich - 2022-02-02
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