It depends on the amplitude of your video signal. All you need is a simple sync seperator like it's used in a TV and apply H-sync and V-sync to the pic pins... Regards, Adi > Hi, is there anyone who kwows an easy way to make a PIC detect the sync > pulse of a video signal, using one or less transistors ? I know how to > do it with a two-transistor-diff.amp and also how to do it with an > op-amp, but there must be an easier way to do it. (?) > > / Rickard GunŽe >