in a specific location so as not to overwrite the bootloader. If the computer isn’t trying to upload any code, it instructs the microcontroller to run the code that’s already stored inside. Original ...

Some beginner-friendly Arduino Uno projects you can get started with ... On the Uno, only 0.5kB of flash memory is used up by the bootloader, unlike the 2kB used on the Nano.

Wouldn’t it be great is you could also use the ’16u2 on the Uno or Mega ... using this new bootloader to explode over the coming months. If you’re ever in an Arduino Demoscene contest ...

On some Nano boards and clones, the bootloader ... another Arduino to do the programming. You could also use any dedicated AVR programmer you happen to have. Oddly, the Uno already uses Optiboot ...

Now I will address one of the issues of making your own Arduino. On the Uno boards, there’s an IC which is responsible ... Once you’ve done this, you can burn the bootloader and upload programs onto ...

which offers a ATmega328 microcontroller with Optiboot (UNO) Bootloader. The Metro 328 has been created to provide extra features on top of what you would expect from the Arduino Uno offering ...