I want to use the adruino uno to output - based on a time interval (like every 5 sec) - to send a short pulse (like 0,5 sec) as a output to a pin. And if possible count the outputs/trigger on a display. And to check if the output is coming a light needs to light-up, as a visual conformation.
Is there some example project whom somebody can point me to? Or help me out in some direction the get the code running.