Unfortunately, with zero communications, you might have a bad Atmega8u2 or 16u2 which is that small square package below that header. You might get lucky like John did, who knows, but you might need some programming equipment.
Good luck!
Unfortunately, with zero communications, you might have a bad Atmega8u2 or 16u2 which is that small square package below that header. You might get lucky like John did, who knows, but you might need some programming equipment.
Good luck!