I want to build an electronic speed controller with pic 16c84 . The PIC has to generate A PWM and to measure an impuls coming from receiver. The PWM should be 3 KHz and the Puls is 1ms to 2 ms long every 20 ms. I use TMR0 for PWM. How can I measure the puls with minor error so i can calculate the right PWM. Has someone software to realize the PWM and measure the puls coming from receiver ? Stephanos Baglatzis from Germany SBAGLATZIS@mail.online-club.de