Motion Sensor Prank PCB
grabcad
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.The prank motion detector has two operating modes after a motion detection, selectieve by two soldering jumpers:- Alarm mode, generating noise for minimal a minute after the last motion detection;- Prank annoying mode. Buzzer does not stop until power is switch off.How to make it, see link: https://www.instructables.com/Motion-Sensor-Prank-PCB/
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