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Man, I know exactly what I did that helped this, and it's so dumb, but I know it's made a difference. We build consumer electronics, and typically, early on in the process, we find some sort of bug with our power supply designs that generally requires a bunch of people surrender their power supply PCBs to the designer. I didn't do a damn thing to fix the power supplies, but I did manage to find [these great connectors](https://www.adafruit.com/product/368?gclid=Cj0KCQiA4NTxBRDxA...) on Adafruit that people can use to power their systems using any barrel jack wall wart supply. All you gotta do is solder some wires and choose a wall wart with the right voltage/power rating. Sure, it's not a to-spec power supply, and it typically can't play audio at max volume, but that's irrelevant - most of the new functionality that needs to be implemented has to be implemented in software, by software developers who just need access to the tiny computer in our products. Not a high power application - at least, not much more than your average router. (Which, incidentally, almost all have wall wart supplies.) Plus, since they're barrel jacks, they're easy as hell to unplug if you need to get a hardware rework done. Saved us a ton of time designing stupid, bespoke, one-off AC/DC supply harnesses to suspend line voltage electronics. Just get yourself a nice safe wall wart and go. Plus, I love that I'm helping funnel a bunch of bigco bucks to Adafruit, who's a company I love to support. |