fazil abdulla
- Feb 13, 2011
- 2
- Joined
- Feb 13, 2011
- Messages
- 2
I'm looking for a circuit for a switch that can be activated by a standard laser pointer and nothing else. I know I could probably buy some very expensive filters to only let laser light pass through, but I'd prefer something that uses a phototransistor or photodiode that can adjust sensitivity and tune to the proper frequency and or wavelength. Anyone have any ideas?