In one of my previous posts i mentioned that i could not get my Digital Workstation to recognise my interface as a MIDI Input. This turned out to be the fact that my Lap-top does not like having both the Arduino’s and the MIDI’s USB cable connected at the same time. This lead to the need for an external power supply.
After consideration it was decided that a 9v battery would be used, this meant the addition of a power supply and a rocker switch to isolate the battery. With this addition it was now possible to identify my interface as a MIDI Input.