We can’t find much info about the “nEDBG Programmer/Debugger” chip ... Naturally, the board works with AVR Studio or MPLAB X IDE (Microchip bought Atmel, remember?). Of course, Atmel ...

This includes the following: Unfortunately, the more popular boards like the Uno, classic Nano, and Mega 2560 don't support ...

is Microchip’s proprietary interface for programming and on-chip debugging, and has become the standard on AVR MCUs after Microchip’s purchase of Atmel. Being a proprietary interface means ...