[Sergey Lyubka] put together this epic guide for bare-metal microcontroller programming. While the general concepts should be applicable to most any microcontroller, [Sergey]s examples specifically ...

Here you can learn many more interesting and useful about USB bootloaders for AVR microcontrollers. In practice, one of the most proper microcontroller programming method is using a bootloader program ...

Sometimes when you’re making a PCB that you plan on programming over USB, but you only plan on plugging in a couple of times, it would be nice to make that connection without another BOM ...