I've got two microcontrollers and a set of speakers and I need them all to talk to each other, but they're not all powered from the same source. So if I link their grounds the speakers will hum like mad
@DPA that'd be the best option, but I don't have the components on hand to do that, and this isn't the kind of project I can put on hold to wait for more parts to arrive
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@DPA that'd be the best option, but I don't have the components on hand to do that, and this isn't the kind of project I can put on hold to wait for more parts to arrive