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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.
johan_m_o
I don't get how yours is protecting the contacts, @johan_m_o.
I used some transparent varnish, but it's easy to remove if I wish to use the contacts in the future, or to apply something else if it doesn't work.