PT-A01 by Frederick Mak

PT-A01 (stand for Prototype first trial)
This is my first attempt to design a robot without any help during 
high school. This robot used two infrared sensor to detect the
object wether it is closer to the left side / right side to avoid collision.
I have used Pulse-Width-Modulation and 4 transistors (H-Bridge 
configuration) to control the motors. Some safety feature has also
build into this robot to avoid over heating during operation.

I am currently working a much more sohpicated Tele-romote based robot 
with micro-controller and much better fit-and-finish. Please
visit my homepage for more information of this new robot. I may consider 
the new robot to enter the "Robot War" competition.


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