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jzkmath / Arduino-MIDI-Stepper-Motor-Instrument

This is an Arduino Project that uses A4988 stepper drivers with bipolar stepper motors along with the MIDI library to create sound.
GNU General Public License v3.0
79 stars 6 forks source link

Fourth motor #2

Closed alana314 closed 3 years ago

alana314 commented 3 years ago

Hi, Thanks for this! I'm having trouble getting my fourth motor firing, but the first three fire ok. Is there anything I need to do for the fourth motor? It's marked 'A' on the CNC shield, and it's pins 12/13? I have a new version of the MIDI Sketch that accepts polyphonic input on one channel if you'd like me to submit a PR? https://www.instagram.com/p/CP67SQZJ6rd/

jzkmath commented 3 years ago

The best way to figure out what the problem is would be to see if you can get the fourth motor turning with another sketch. All you would need to do is enable the drivers by pulling the enable pin low, then doing a simple "blink" code on the step pin. You might want to double check the step pin using a multimeter just to be sure. I dont know too much about the mechanics of the pull request, but if there s a way to add it alongside the original code (like another folder for the polyphonic version) then go ahead.

EpicLPer commented 3 years ago

You have to jumper the bottom left contacts in pairs together on the CNC shield to get the 4th working, was wondering for hours too :) image

alana314 commented 3 years ago

Thank you both!!