Lesson 13 Controlling an LED by Vibration Switch
Introduction
The vibration digital input module can sense weak vibration signals, thus it can be used
for related interaction projects. The core sensor is SW-540, a spring component of no-
directional vibration sensing which can be triggered at any angle. The module stays off at
any angle when it's still. But when it's hit or knocked by external force, the distorted
spring contacts and connects the electrode in the middle thus connecting the two pins and
turning the sensor on. When the force disappears, the circuit is back to off.
This sensor module is suitable for small-current vibration detection circuits and has been
widely used in products such as toys, light shoes, burglar alarms, electronic scales, flash
dance shoes, hot wheels, flash balls, etc.
Components
- 1 * Raspberry Pi
- 1 * GPIO Extension Board
- 1 * 40-Pin GPIO Cable
- 1 * Breadboard
- 1 * Vibration Sensor Module
- 1 * LED Module
- 2 * 3-Pin Wires
Experimental Principle
The Fritzing image:
The Physical picture:
To Next Page
Loading...