The mini challenge for the ultrasonic distance sensor is to detect an object and pick it up. Use the touch led to start a program. Open the claw, then drive to and detect the object. Close the claw, move the arm up, turn right and put the object down. Open the claw and reverse a little. This is my robot doing the distance sensor mini challenge.

For fun I made the touch led indicate the spin direction of the drive motors. Green is forward and red is reverse