Line Following and Parallel Parking Robot Line Following and Parallel Parking Robot from Benjamin Tien Line Following and Parallel Parking Robot This robot uses an infrared and ultrasonic sensor for data input. It uses a zig zag algorithm with a PI controller in the program. gLike Line Following and Parallel Parking Robot This robot uses an infrared and ultrasonic sensor for data input. It uses a zig zag algorithm with a PI controller in the program. Engineering Share R 7 n Benjamin Tien Queens, NY Follow Contact