jiokl:
So if I change the firmware on it, I first need to write the code? If I understand it correctly. Such as I write the code for what I have lets say 10 buttons and 2 pots, I write my code for it put it on my arduino uno then change the firmware to what you sent me?
Yes. So the steps would be:
- Work on the sketch
- Write sketch to UNO
- Put UNO in DFU mode and flash the MIDI firmware
- Test to see if it works
- Not working properly? Put UNO into DFU mode and flash serial firmware. Goto 1.
If you have an FTDI serial to USB cable then you can connect that to a couple of digital pins on the UNO and use software serial to provide some debug output.