I've been designing an ESP32based dev board recently and I got to thinking what's the minimum we can get away with and still have something that works? As always we're sponsored by https://www.PCBWay.com/?from=atomic.
Turns out that you don't need much at all, a pretty interesting experiment though it did involve a lot of cursing as I tried to get stupidly tiny bits of wire soldered onto very tiny pads...
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