I got hold of a very road-worn version of the AX2 amp, and after fixing it up i thought it would be ideal for the rehearsals on tuesday night with the band.. but what about using the stomp boxes and patches in there.
I have a Behringer FCB1010 floorboard with UNO chip (where the top row buttons are assigned as stomp box switches) and want to use that. The PC (program changes) work well via the Midi interface, but what about the box switches. Having read the sysex manual I understand the AX2 needs sysex messages to turn the boxes on or off. The FCB cannot send these out (they skipped that in the last version) and so it came down to using normal CC's (Continuous control messages) as triggers for the stomps. I have build a midi interface on a arduino device I had lying around, waiting for a good project. I build a piece of code that does two things: Send out PC and regular CC commands like they come in, but when a CC is received that is in a specific range, it translates them into a sysex message. Volume and Wah pedals are working just normal (wah is switched on by the 10 button), and using the bottom row of buttons, 90 presets can be selected (18 banks of 5 buttons).
Anyone interested in building this can find my code on github
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