Originally Posted by Khalid  can u pls give us an idea about the circuit? |
I'm not exactly sure what you're asking. The board itself is laid out quite plainly in Shaun's PDF linked in the first post. The circuit itself is simply 3 NC switches connected in series. Open any one and you open the circuit. Each ball is in contact with the copper of the circuit board causing them to become part of the circuit. The brass rods embedded in the central hub contact two balls together thus making a closed switch. If any one rod is removed from its resting place between two balls, the circuit opens.