Stop at Line

Build the Driving Base model.

Recreate the program shown below, then download and run to test. Set the sensor threshold for best results.

Hints
For best results, ensure the dark line is at least 20% darker than the surrounding surface. The line may not be detected if the Driving Base turns too quickly.

Program Summary

Start
Large Motor - On
Wait - Colour Sensor – Compare Reflected Light Intensity[Less Than, 50]
Large Motor - Off

Now it’s your turn! See if you can make the Colour Sensor detect a lighter-coloured line.

Hints
If the difference between the x and y values is too small, the line will not be detected. If this occurs, try recalibrating the sensor.

What is next?