Good morning, I bought the laser Diode Keyes for Arduino, see link: DX New Forum – Discuss Cheap Electronics and Find Smart Tech Here 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 …

Laser Diode Keyes for Arduino

simo9836 May 24, 2013, 3:47pm 2

It's an emitter

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