Hi Ian, Thank you for making this awesome project! I'm having trouble connecting it to a device.

The MIDI to USB cable I'm using is here:

https://www.amazon.com/VicTsing-Cable-Converter-K...

I am trying to connect the drum set to either an iPhone or my PC. I think that the problem is coming from the OTG adapters I am using since nothing happens when the iPhone is plugged in. Also, the MIDI cable only lights up when I plug it into a PC. Even then, it doesn't display an input or output light when I tap on the drums (though the LED does). Additionally, I can see in the photos included in the tutorial that you are only connecting the Arduino to the input socket of the MIDI adapter. Do I need to do anything to the output socket?

The two adapters I am using are here:

https://www.amazon.com/VicTsing-Cable-Converter-K... https://www.amazon.com/VicTsing-Cable-Converter-K...

I would assume that the problem is coming from the USB to lightning setup or the MIDI cable, but maybe I'm missing something? Any help would be appreciated.