The two-button remote control is a very versatile program for controlling Lego robots. It uses a series of touch sensor Switches to determine which behavior you want to trigger. Since the Switches are between a set of Loops, the program loops infinitely, and the behavior of the robot will change every time a different touch sensor is hit.

In this program, the two-button remote is setup to control a car with motors connected to Ports B and C. When only touch sensor 1 is pressed, Motor B spins forward and Motor C spins backward. This will turn the car left or right. When only touch sensor 2 is pressed, the motors are reversed and the car will spin the opposite direction. If both touch sensors are held, the motors go forward. When no touch sensors are held, the car does not move. Remember, each branch of the Switch can control something different. It does not only work for a car. The touch sensors can trigger music, events, even mail to other robots. The possibilities are endless.