Open Roberta Lab - Robot EV3 leJos 0.9.1

Tutorial / code example When the robot meets the green color, it will emit green light signals, and if it encounters the black color, it will return to the inside of the black line and will not be able to leave it. Homework: Add blocks so that if the robot encounters another color (red, yellow, or blue), it can send light signals with the new detected color.