Breaking apart the boards

[mnskll]

If I cut off the midi part to mount it piggyback on the main board, witch patchpoints must I connect to make it worK?

[thetechnobear]

can i tag on a related question... if I break off the midi part, am i ok to NOT connect it.
(with 4 boards, I'm not sure I'm going to need that many midi ports)

[johannes]

First of all, don't break them apart by bending the board, but cut!
I suggest an iron saw, and doing it by hand.

Then, just connect the 5 corresponding pins of JP2 to JP3. You can see the tracks connecting JP2/JP3 on the top side.

am i ok to NOT connect it

Sure, Axoloti Core can operate without the switching power supply if you feed it 5V via micro-usb or via other pads.

The MIDI + power supply part can be re-used for a different project, like adding MIDI to a different microcontroller board.

[mokomo]

how would I use the MIDI + power supply part with an Arduino for example? I'd guess the 5 patch points that join the split axoloti would map to pins on the arduino and be useable as though i was attaching a 2 port mini in out circuit to the arduino, just not sure what maps to what. thanks

(i'm trying to integrate an arduino onto the axoloti to send and receive midi in parallel so not actually splitting the board)

[johannes]

Here's a legend for the 5 pin patch points JP2 and JP3, top view:

Merging two midi streams with a connection or simple logic is not possible, I mean, connecting an Arduino to MIDI in will not work in combination with the on-board MIDI input circuit.

[mokomo]

thanks Johannes, I expect the best thing to do then is use proper midi port to port or tap into the din connections internally and 'merge' with arduino midi ports in a hackish way.