User Manual

45
Lesson 7 Tilt-Switch Module
Introduction
The tilt-switch module (as shown below) in this kit is a ball tilt-switch with a metal ball inside.
It is used to detect inclinations of a small angle.
Components
- 1 * Raspberry Pi
- 1 * Breadboard
- 4 * Jumper wires (Male to Male, 2 red and 2 black)
- 1 * Network cable (or USB wireless network adapter)
- 1 * Dual-color LED module
- 1 * Tilt-switch module
- 2 * 3-Pin anti-reverse cable
Experimental Principle
The principle is very simple. The ball in the tilt-switch changes with different angle of inclination
to trigger the circuit. When the ball in tilt switch runs from one end to the other end due to
shaking caused by external force, the tilt switch will conduct and the LED will emit red light,
otherwise it will break and the LED will emit green light.
The schematic diagram: