Hi guys,
Was wondering if anybody could help. I'm looking at creating a laser timer using the Arduino board.
The problem that I have is that can't seem to find the right type of laser that I can leave on for long durations ( 3-4 hours).
The idea I had was to get a laser to point as a light sensor to start/stop the timer. I was hoping not to have use another arduino to power the laser..
Any ideas?
Thanks