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Topic: arduino laser projector wiring (Read 646 times) previous topic - next topic

tomas

Jul 11, 2006, 04:32 pm Last Edit: Jul 12, 2006, 08:44 am by tomas Reason: 1
hello
on my first arduino project i will make a simple pov (laser pov)
the first stage is to get a laser led(s) working from arduino out pins.
so i set up a breadboard with uln2003a darlington chip , and connected the board as shown in this link:

http://tomsofer.googlepages.com/home

the laser led is working when powered directly from 5v out but not when used through pin 13.
also I should ask for directions about current limiting resistor , though it seems there is one inside already (this is a disassembled laser pointer)

thanks
tom

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