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The motion detector / tilt sensor is constructed by integrating several techniques with each other. Including PCB layout, 3D printing, soldering, a bearing ball and gravity as the force for the motion detection. After motion / tilt detection a buzzer is activated. The rest of the time, the controller will go to sleep to save battery power. Only a wake up occurs when the value at the sensor pin change from the state it was before going to sleep.
sensor tilt motion:
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