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Topic: Laser Harp Help? (Read 2797 times) previous topic - next topic

Grumpy_Mike

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So, I can use the built in resistors and just use 8 33ohm resistors to limit the 5 volts from the arduino to each laser

Well 15mA through 33R will give you half a volt so I don't see why not.

However driving lasers is a bit tricky have you read this:-
http://www.repairfaq.org/sam/laserdps.htm

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