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Turns out there is in fact a very simple library called fortran-gpio for exactly that. Another option is to access GPIO pins through device files, see here for details.

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In reading through the Johnny Five examples, it seems like the basic Motor command is supposed to be used if you're driving a motor directly. You're not, though - you're using an H-Bridge configuration. There is an example for that as well that gives the following for the motor command: const motor = new Motor({ pins: { pwm: 3, dir: 12 },...

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Converting a joystick $(x,y)$ into differential-drive $(left, right)$ control is not difficult. But there are multiple approaches because of different robot and joystick characteristics. For example, compare the differences between a "playstation-style" controller joystick (which will usually be used in an all-or-nothing kind of way and might have a sloppy ...

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