In this project, you’ll build a desktop balance beam game using a turn knob and a servo motor (a small motor capable of making precise movements). The aim of the game is to roll a ball back and forth along the beam without it falling off. You’ll do this by using the turn knob to control the position of the servo. As the servo moves, so will the beam! Ready to get started?
Figure 6-1 shows the finished project. This is a simple mechanism that is made entirely of cardboard and a few household materials.
FIGURE 6-1: The finished Balance Beam project
The circuit for this project uses relatively few parts, though ...