Hi All, Just a quick question. In a programme there seems to be a timer labelled as a square wave timer. It basically seems to just keep couning to 5 seconds, operate the output and starts again. There seems to be no input etc into it, and I am not sure if it is even a timer as such. My question is, how have they done this? with my basic knowledge I could do it, but with a few timers !! I need someone with wisdom lol Thanks in advance for any replies.