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motor control

Well, pwm is easy stuff. for my micromouse , im not sure whether i need to have a sort of speed profile for the mouse. that aside, i need to ask how i am able to accel and decel a motor, which i am controlling the speed with pwm. I am using 18f252 by the way. Thanks in advance!

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I might be missing something in your question, but you should simply change your PWM. I think you might be looking for a slope of speed during start-up and stop (soft-start), in this case, you just need a simple for-next loop to ramp up your speed to what you want.