Hi there all.
I'm going to control an electric kart using PIC16F84 in my school
project.
What I'm going to do is to control the speed. Do anyone here can tell me
how to increase the speed of the motor proportionally with time? I want
the motor to reach it's maxmium speed in 10 sec.

Here comes another problem that when a driver decelarated but the kart
is still moving, what will be the speed of the motor if he step on the
foot switch again??

Thanks in advance.
marc.