I bought the laser Diode Keyes for Arduino, see link: http://club.dx.com/forums/forums.dx/forum.137473
The device has 3 Pin: (5v) + (-) + (Sens).
How to connect to arduino this components? I need some resistance to limit the current or the current driver is already integrated in the laser electronic board?
What you use it for?
I thought to use it like a switch (to create an high speed photography flash trigger) and I was thinking it was a switch. Can you confirm me that is only a laser emitter (so I need some photoresistance on the other side of the light source).
Thanks for any information.
If you alredy used in other project, let me know.