Anyone ever write a grbl sender for arduino?

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I have a really simple program I’m running repetitively that sends the same 25 lines of gcode and then two that vary with each invocation. I’m using universal gcode sender on a raspberry pi. that is like two orders of magnitude more computing power than the application needs.
I wrote a python gcode sender that parses a file and with each line, sends it and waits for an ‘ok’ return.
But I’d rather just write it in C and run it on an arduino micro that takes like 1/20th the space, power, and cost of the raspi.

Has anyone else already done this?

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What about an ESP32 since you can probably just run your python on it, and it costs less than the arduino?

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Huh, good point. Guess I finally have to get one of those ESP modules working…

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