Do you mean to control a motor with a PIC. Input being a signal from a R\C controler. One like R\C cars use? If so I have done just that. You have to convert the PWM signal from the R\C to another form of PWM. one that goes from 0% duty cycle to 100% duty cycle. Then feed that into an H-bridge witch will drive your motor
with the remote controller signals we will control the speed of the dc motor or the stepper motor. with the on button in the remote contoller the motor will start work and the other buttonds we will increase or decrease the motor speed. we can design rf remote controller and the dc motor speed control separetely but how can we combine these two systems how can work with the remote controler receiver side for the dc motor input