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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.
@Cale
I have not done the FET tutorial. This is consistent on every PICO I have tried thus far. Its a little concerning because the current project is similar to what your doing. I am actually creating a wireless sprinkler control system where I have solar panels built into the in ground sprinkler boxes connected to a 12 volt battery. I can add a lm7810 to the circuitry but was hoping to get away without having to. I did try cleaning the back up with alcohol and still no change.
https://goo.gl/photos/qfNoU1xSMsBseRoM9