Sparkfun EL Escudo Dos unexpected behavior (Part COM-10878) (Strange use case)

Components & Accessories LEDs
1

Hello,

I’m using an EL escudo dos as an optoisolator to control some 12v relays, but I’m running into a strange issue where once I activate a circuit, it latches and stays on, even if I completely disconnect the 5v side of the circuit. I have some pictures and videos of this effect, could I get some help figuring out how to solve this?

Thanks,

Jon

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2

That board uses optotriacs to control regular triacs. They only work with AC, not DC.

3

okay, bummer. I didn’t realize they were different and had been led to this product as a potential solution.

are there any alterations or modifications or an alternate board I can use to make it work?