Wire-loop game is so popular and ha been built and modified in so may different ways with varying difficulty level. Here we are trying to build a simple construction with easily found things at home.
Concept: The principle of Electricity can be understood/taught with this project with basic introduction to programming micro-controllers.
1. Two supports
2. Conducting wire
3. Metal key (I used a metal ring here)
4. Crocodile wires
6. Calliope Mini and PC
The circuit is simple. The metal wire is connected to Pin 0 and the ring/key is connected the GND. Whenever the ring touches the wire, contact is established and circuit is complete. This enables us to program the micrcontroller as we desire.
In this case I have made a simple program with a buzzer like sound.