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Topic: Newbie: How to close a circuit to cause photo flash to fire (Read 670 times) previous topic - next topic

Paul__B

As it turns out, the sketch I was basing my work off had the input pins 1 and 2 of the optocoupler backwards. I found a couple of other examples that mentioned the pins the opposite way I had them. I changed it and it worked.
I may have overlooked your previous diagram, but that was the reason I asked for full detail.  :smiley-lol:

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