I'm looking at building a circuit using two TCRT 5000 opti sensors to trigger the events. One for ON and a second for OFF. I had originally planned on using something like a 12F629 but may change that later to a larger PIC,if I decide to add more sensors.

Has anyone attempted this.? Had a search round the forum but haven't been able to find anything or similar projects.

All help or pointers gratefully received - thanks