hi friends I need to design a board and need to be power with usb and can be programmed, controlled with pc i have the schematic of Arduino uno but I don't have the bootloder for atmega16u2 and atmega328p boot loader latest files can anyone help? thanks

new board compatible by arduino uno, please help

system May 21, 2019, 1:53pm 2

can anyone help?

Did Mr. Google go on vacation?