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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
They're general purpose - but obviously, MOSFETs that work with 2.5v Vgs are a lot more useful for 3.3v microcontrollers than 5v ones.
I've got SOT-23 MOSFET breakouts (about the size of a TO-22o package), and a larger 4-channel one with 20A mosfets on it.
The touch/proximity sensor is an MTCH101 based device, real simple, and you can use whatever you want as the sensor, as long as it's metal. Wires, screen, foil, coke cans... It's open drain output, and has a pullup resistor on board.