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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.
@Michael
I'm wondering if someone has done this (added a crystal to the Pico) and is willing to share a pic or diagram of where the crystal goes on the board? I've found the Kickstarter Pico v1.3 to not be good with the internal interval (e.g. 1000ms setIntervals are not always accurate) so if I can overcome this with an external crystal, it's worthwhile.