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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.
@user58511
Ah, let's all come to the same page: http://www.pretorianuk.com/j-pad
I have one of these, and the person I'm doing this for can't operate the joystick, I chose the device also because it has the option to attach external switches.
I want to make touch-pads so that I can close those [external switch] circuits programmatically.
Gordon, those optocouplers are gorgeous -- I saw something like them in my searching last night but couldn't figure out if I could drive them from the pico as they didn't seem to mention Volts... Those mention 6v but in ways that I don't understand, and I don't know what your reference to 50mA means, the pico has 250mA to spread around so I'll have enough to drive these? Or I'll fry them unless I add a resistor? Anyway I'll grab some and see if I can make them work for me. I can swap the tip and ring on the external switch connections easily enough.