N64 In Game Reset using 328P Atmega Arduino Nano board, wires and a 120R 1/4W Resistor to prevent ghost pressing.
To reset the console press this combo buttons.
Inside image folder there's some instructions for other models too because the serial controller pinout is different, the rest is gonna be the same for all NUS-CPU models.
// Flashing on already bootloaded ATmega328P (Nano)
--Open Arduino IDE Run
--Install board library as image above --Plug your Arduino on USB
--Select correct board (Arduino NANO) them the COM PORT where Arduino is connected, as image below.
Copy all the three files inside "Files for Arduino IDE" folder to a new sketch folder, compile and upload it to the board.
DONE! Enjoy. Cheers for L10N37 for making this.