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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@DrAzzy
I have added some boldface clarification to the start of that thread to make it clearer that the fumbling around in that thread was entirely due to user error on my part, and that there is absolutely nothing wrong with those boards (other than the decision to not support QIO in order to save money - but that's a decision that WeMos made, and the clones just copied it - which I can't fault them for, since if everyone is treating it just like an official wemos board, nobody would get any benefit from the fancier flash chip. And no clone maker is going to spend money for a feature their customers wouldn't be able to use)
I wholeheartedly recommend buying any old clone WeMos D1 mini, and would have absolutely no reservations with recommending that.