Build a Midi to Relay Box for Arduino

Download the code HERE

PARTS LIST (with Amazon links)

1 - Relay Board (8 relays)

1 - Arduino Nano

1 - 6N138 Optocoupler

1 - 1N914 Diode

1 - LED

2 - 220 Ohm Resistors (1/4 Watt)

1 - 470 Ohm Resistor (1/4 Watt)

1 - 4.7K Ohm Resistor (1/4 Watt)

1 - Midi Jack

1 - 5V Power Adaptor (1-Amp)