Thanks @RickCarlino, I am a 30+ year bare metal embedded software engineer (with a degree in Electrical Engineering). I’m a big tinkerer, so this sort of thing can be interesting albeit frustrating. I totally understand that Farmbot is more of a tinkerers project, so I expect to make many mods to get it running smoothly. From what I can tell, the RPi zero seems very under-powered. So getting to a more capable SoC seems like a good first step. I read somewhere in the forum that the RPi is not upgradable in the Express, so perhaps the new hardware box would be a good first step. If I go down this route, I am more than willing to open source any work to make the transformation.
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