Send CC and MIDI trough Analog Output

#1

Hey guys,

I am planning on getting an Axoloti soon, but i just have a few questions..

I plan on creating a standalone synth using Axoloti as sound generator and the Livid Brain board as a midi controller for Axoloti.

I have been looking into implementing some visual feedback by sending CC midi or some form of data from Axoloti trough an Arduino to a screen...

My questions are: is it possible to program Axoloti to send midi data trough any other output than midi out?
Is there any other way i could send my data to Audrino?

Thanks for your responses, cant wait to try this little thing :slight_smile:

update: i searched trough the forum and: do you think it would be possible to send the data trough the micro usb port?

#2

Axoloti Core has both an UART and an SPI port available on the expansion header. Both of those should connect straight to an Arduino for general data traffic between the two. This is the easiest way to do it - USB is a lot more involved.

#3

thanks for the reply.

that is actually even better for me, since i can use usb on both devices for other things.

#4

This has started to answer a question I was about to ask.
I have been wanting to use an arduino to manage a number of encoders, buttons and some numerical displays. And pass the variable data between the arduino and the axoloti.
I was concerned I would have to use the pins on the back of the midi ports to do this as I want to keep them free to use with midi sync and other functions.

Can anyone point me in the direction of more info relating to how the UART and SPI ports work?
Eg what format to send the variables etc.

#5

Interesting. I was planning on sending midi to teh back headers on the Midi-IN socket. If there's a way to do it over UART then I'd go for that. If there's a way to get parameter data back out then even better!

#6

For UART am I correct in thinking that they would be PA2 (tx) and PA3 (rx)

I guess they would connect to a rx+tx pair on my arduino and from there it's just a case of working out the code side of things.

#7

Any luck with this? Would be nice is UART could be used to interface with Midi-IN objects.