First I came up with really simple circuit that turns on the light.

Then I chose a part to add a switch.

My first idea was to use charcoal(pencil) as a conductor. I was going to make a maze with insulator and make user to figure out the maze in order to turn the light on. However, I found out that charcoal is not a great conductor. It turns the light on but not bright enough.

Then I found this cute looking ladybug toy I had. I connected wire to the front leg and covered it with aluminum foil. Then I connected those legs into single wire and +.

I wanted to keep the maze idea. So I made a track covered with conductor then connected it with - of the circuit. So that whenever machine bug touches the wall, the light will turn on.

While I was playing with this machine but, I found out that it is really hard to control. I thought it would be fun to make this experience as a simple game. ‘Train your machine Bug.’ Point of this designed circuit is to make you proficient at controlling your bug. User should try not to illuminate the lightbulb.

Also, you can adjust the difficulty by relocate the bar that makes a track. It’s a heavy metal covered with aluminum foil, so you can place it anywhere unless one side of it touches the wall.

NOW! Please enjoy ‘Train your machine bug’