Attaching a Laser Module - Raspberry Pi Forums

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hi all!

while i'm not new electronics , circuit boards...it's been 3-4 years since last set functional circuit in university. such, please treat me if have no inkling of doing, true.

wish attach laser module pi, 1 seen here: http://www.robotshop.com/ca/en/laser-mo ... point.html

, have can toggle laser on , off. don't need fancy brightness control, simple on/off do.

first idea attach gpio pin, i've been doing lot of reading, learned each pin has voltage of 3.3v (compared typical working voltage of laser @ 4.5v) , max current of 16 ma (compared typical working current of laser @ 20 ma).

hardware need able attach laser module pi board safely? i've been doing lot of reading know i'm not first person wants controllable laser, can't seem understand of topics i've been doing reading in...i suspect need breadboard or cobbler, don't know how tell wires or resistors or , how connect each component.

i connect similar module direct gpio (+ve gpio, -ve ground).

it's shown switching on , off 1m30s in @ https://www.youtube.com/watch?v=rrrg1guojqe


raspberrypi



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