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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've made a few ready to use touch sensor boards and put them up for sale on tindie.
https://www.tindie.com/products/DrAzzy/easy-touchproximity-sensor/
These can be used like a normal switch, with or without a microcontroller, and feature adjustable sensitivity, and work at both 3.3 and 5v.