Just for fun and to prank people those sorts of people that can't or won't follow instructions comes this movement-activated siren box. Quite simply, there is a Freetronics Arduino-compatible board connected to our accelerometer board, a tilt switch and a very loud 120 dB siren fitted inside an officious-looking box. The tilt switch keeps the power off until someone picks up the box, then the accelerometer detects movement after a few seconds. Excellent joke and fun for around the office. Maybe.
To get started with your own siren box, you will need our simple to use AM3X: accelerometer module, which can detect movement on all axes up to 6G, and freefall as well: