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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.
@Georg
The olimexinos have a second row in parallel with a sane .1" pitch all around so that you can use a perfo board. That's a good thing if you ask me. I would not solder the connectors, let the buyer choose whether to solder them or not, and where.
"The original Arduino design had a flaw and the connectors were not spaced at 0.1". This makes perfo board use impossible, so to keep the compatibility, we have the same spacing but we added next to this a connector on 0.1" which customers can use with perforated boards"