The MIDI Kits use a combination of MIDI (Musical Instrument Digital
Interface) using the
MIDI IN/OUT assembled board, and the Arduino microcontroller
assembled boards, which use the ATmega microcontroller. Each product comes with a pre-programmed Atmega microcontroller
pre-loaded with the required project. Some of the MIDI Kits have a
direct MIDI OUT connector, via suitable series resistors, where no MIDI IN is required.