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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.
@dwallersv
Good points, and I didn't consider that the Pico has an M4. Also, I do have the Chenbo board, which has the line drivers on it already so can wire right in to the bus in my car. Changing my mind again :-)
re
Re: ELM323 -- ah, got ya now. I need to do this anyway for the lighting project I'm working on, so I've got to bite the bullet.