We have almost completed our adventures in RoboLab Level 1. But there is one more Icon to think about.
Consider, what if the Cart was to hit an obstacle. At the moment, the Cart is likely to get damaged. This must be avoided at all costs.
So we will be using a new piece of hardware called a Touch Sensor, so if the Cart does "touch" something we can program it to Stop, Reverse or do something else.
This icon represents the Touch Sensor. It means "wait until the touch sensor on Port 1 is pressed". The length of time to wait depends how it takes for the Cart to "hit" something.
Using the Touch Sensor! Go Full Screen to see in greater detail?
The Touch Sensor in Action
Notice how the RCX does the same thing when it runs again at a much shorter distance.
What you have to do!