This is a line following car that implemented with 2 moving wheel and one ball caster. This car do not perform well due to several implementation mistake. First, the motor control should be implemented using Pulse Width Modulation (PWM). Second, the control algorithm is open loop and not based on any closed loop control algorithm (eg. PID).
Lessons Learned :
COLLECT related data before doing project.
NEVER do last minute work.
Open loop control system is not robust.
http://www.youtube.com/watch?v=M9pl6KDwVqI
http://www.youtube.com/watch?v=7VLMEQDPwxo
Credit : Liew Shan Sung








