Program #1

Using the IR sensor: If the robot is close to an object, have the robot stop. But if nothing in it's way (or what was blocking it has moved) the robot can go forward.

Try having 2 robots setup with one in behind the other. Start the robot in the back and see if it stops when it reaches the 1st robot. Start the 2nd robot and see both move together. See what happens if you use 3 or more robots.

Program #2

Using the Random Block and a Switch

Program the robot with the following rules:

• Pick a Random number from 1 to 3
• Based on this number say a color Red, Green, Blue and display it's name on the screen
• Wait for the user to show a brick of that color to the color sensor.
  • When the correct color is shown, display a happy face and make a positive sound
• Repeat from the beginning picking another color.