This Arduino sketch was built and tested using Arduino IDE 1.8.19 but should work with later versions. Before uploading the .ino to the Mega2560, review the config.h file and change the paramaters as ...

Dumping the ROMs took about 15 minutes, and that’s if he was able to maintain a good connection between the chip and Arduino for that long.

Meanwhile, the Arduino Mega is getting the same USB chip along with an ATMega2560 processor with twice the memory. Right now only 128K is available, but that's a software limitation and they're ...