So let me prefice this by saying I am no engineer. I'm a music first kind of guy looking to get the versatility that arduino provides to make a midi controller that fits my needs. Last night I built my first prototype, it's very simple so instead of attempting to make a circuit diagram I'll just describe it. It's two 3 pin potentiometers and two 2 pin buttons. One of the outer pins of the potentiometers are routed to the negative lane on my breadboard, which is connected to the ground port of the arduino. The other outer pin is connected to the positive lane which is connected to the arduino's 5v power supply. The middle pin of each is connected to analog inputs A0 and A1. The buttons just have one pin running to the ground pin and the other pin running to digital inputs 3,4,5 (no particular reason they aren't all one pin lower, that's just how I wired and coded it.)
I'll have the code posted in a comment below because it's pretty long and puts the post over the maximum length for a forum post.
After uploading and switching the serial monitor to the correct baud rate this is the feedback that I get, I copied a section that has information from all 5 inputs
9:30:36.928 -> Pot: 1 20
09:30:36.928 -> Pot: 1 124
09:30:36.928 -> Pot: 0 76
09:30:36.928 -> Pot: 0 0
09:30:37.443 -> 0: button on
09:30:37.612 -> 0: button off
09:30:38.097 -> 1: button on
09:30:38.235 -> 1: button off
09:30:38.720 -> 2: button on
09:30:38.857 -> 2: button off
This is reassuring because it means that my circuit is probably wired correctly, and that data from the potentiometers is properly being converted from the 1023 different values it usually displays to the 128 that are readable in midi data. But this data being recievied is obviously not midi data. Normally midi data in the serial monitor would either be a bytes worth of data in hexidecimal form. One nibble for either command or note information (depending on what the input was designated for) and the other nibble for channel information. Or, usually in videos it's formatted so it displays three categories in the serial monitor, the channel, the controller, and the value. Chances are it's a really simple issue in the coding, but I'd really appreciate the help because I'm totally lost.
The attatched file is diagram breaking down midi data in binary terms in case anyone would find that useful.
Thanks
Zack
