Adafruit Medium Vibration Sensor Switch

The "poor man's" accelerometer/motion sensor is a clever spring-vibration switch that detects motion with precision and simplicity. Featuring medium sensitivity, it operates as a non-directional vibration-induced trigger switch.

Inside, a medium hardness spring coils around a long metal pin. When motion occurs, the spring touches the central pole, closing the circuit and acting as a switch. In the absence of motion, the circuit remains open, providing reliable and straightforward functionality for numerous applications.

Easy to integrate into basic projects and wearables, this sensor offers effective motion detection without complex setups. Alternative versions include a stiffer spring for higher trigger thresholds and a softer one for more sensitivity, catering to diverse project needs.