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37 lines
1.2 KiB
37 lines
1.2 KiB
5 years ago
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MidiStepper
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===========
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Made for an old (AnyCubic) Trigorilla-Board from an 3D-Printer.
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Also compatible with Arduino Nano and old floppy drives.
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Floppy pins:
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------------
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.....j..DS.......
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..G5 . ...j..GG.......
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j: jumper (drive select)
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D: direction
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S: step
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G: corresponding ground
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5: 5V for the motors
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Caveats:
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--------
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The ATmega2560 has 6 timers, so we can use them to generate the square waves for the steps. Be aware that delay() and similar arduino-functions will not work as expected if you extend this and use Timer0. RAMPS14-compatible boards have only 5 stepper drivers, so we're fine.
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Other arduinos don't have enough timer peripherals, so we generate them in software. This could be done in an ISR. See: https://www.youtube.com/watch?v=fHAO7SW-SZI
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Usage:
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------
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The arduino part accepts raw midi messages over its serial interface. baudrate is 115200.
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Use the python script send.py to send midi files over the serial port. It can also act as a virtual midi port.
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Compile:
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--------
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$ git clone
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$ virtualenv -p python --no-site-packages .
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$ source bin/activate
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$ pip install -U platformio
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$ pio run
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$ pio run -t upload
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