Chapter 7: Build a Smart Productivity Cube, Part 1

1. Tilt switches contain a small metal ball inside that closes an electronic connection when held in one specific position. If the tilt switch is placed flat, the small metal ball can go either way; when you read it, the result might be either HIGH or LOW—you get random readings. When working with tilt switches, you should make sure that the small metal ball inside is always in a stable position by using appropriate angles in your construction.