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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 also do male pins facing up. It's more convenient IMO, and I don't like the way the male ends of dupont jumpers look - they don't inspire faith, even though they work.
I'm getting stackable headers for the next one - will probably still keep the males on top, but the females will keep it off the table (currently, I have a piece of tape on the bottom in case some bit of conductive debris gets under it), and would make it convenient to make a board that it would sit on that interfaced it with other things.