Hacked pulsed laser driver using Arduino

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    Arduino Laser
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32 replies · 5K views
OK, how would you improve it?
 
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How to use a transistor to drive an LED

Your circuit only works because the series impedance of the battery is high. If you put that on a strong enough battery you would instantly explode the transistor.

BoB
 
Thanks for the article. It is very readable and explains basic concepts which I have forgotten from my mammoth hunting classes.
 
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