This was an interactive exhibit wherein the visitor could pilot a small robot to retrieve a bomb from the back seat of the car.
We wanted the exhibit to function in two modes: 1) Line of sight, and 2) remote viewing.
In the first mode, the pilot could simply see everything that they were doing directly in front of them. In the other mode, they had to rely on the camera in the control panel. To achieve this, I constructed a "blast shield" that could be raised to obscure the line of sight and force the visitor to rely on the camera.
Problem is, young kids would just sit there and run the blast shield up and down, up and down. So, to suck the joy out of that particular activity, I put in a delay that disabled the motors for a few seconds. That's why the light goes to red and then back to green after a few seconds. It worked!
