The Sense HAT has a set of sensors that can detect movement. It has an IMU (inertial measurement unit) chip which includes:
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* A gyroscope (for detecting which way up the board is)
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* An accelerometer (for detecting movement)
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* A magnetometer (for detecting magnetic fields)
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Before you start experimenting with motion sensing, it's important to understand three key terms covered in the guide and in [https://www.youtube.com/watch?v=pQ24NtnaLl8 this video].