The vertical switches is foward/backwards and the horizontal switches is left/right. The LEDs determine the direction of current for the motor.
INPUT(SWITCHES) OUTPUT(LEDS)
VERTICAL UPPER---------FOWARD RED---------FORWARD CURRENT
VERTICAL LOWER--------BACKWARD BLUE-------BACKWARD CURRENT
HORIZONTAL LEFT------TURN LEFT UPPER-----LEFT MOTOR
HORIZONTAL RIGHT---TURN RIGHT LOWER----RIGHT MOTOR
