Minibot start and stop conditions

[mikets]

Should we assume the FCS software only controls the main robot and not the NXT minibot? If so, it means we need a mechanism to detect the start and the stop conditions. Our first thought is:
1. Configure three touch sensors.
2. One for detecting the engagement of the pole so we can start the climbing motor.
3. One for detecting reaching the top so we can stop the climb.
4. Wait a certain amount of time and start descending.
5. Another touch sensor to detect when we reached the bottom and stop the whole thing.