I’m relatively new to the Arduino, so I’m having trouble finding the right components to use with it.
At the moment, I am looking for an optocoupler / optoisolator (is there a difference?). Quite simply, an output pin of the Arduino should trigger the input (diode) side of the coupler, which connects another circuit (in my case the shutter release of a camera). Kinda like a relay, just optical.
I found some models that seem right, but I’m confused by all the different kinds that are out there. What do I have to watch out for in terms of specifications? I don’t want to fry the input diode with my 5V arduino input, nor get a model that needs too much voltage to trigger the gate.
Would an element like this (http://www.jameco.com/Jameco/Products/ProdDS/672317-DS01.pdf) be right for my purposes?