Description 
Installation
CIRCUIT DIAGRAM
wire connection
This is an example of a circuit diagram of the ADB to USB adapter. This example is using Da Vinci 32U board and miniDIN 4pin connector kit CK-26 for ADB connector. Da Vinci is one of the Arduino Leonardo compatible board. ADB data pin is connected to PORTD6 of Da Vinci 32U board. If using Arduino Micro and Leonardo board, PORTD6 is DIGITAL PIN12. Pull up resister is connected to PORTD6 following the recommendation of the topic ADB to USB keyboard converter for Teensy.