I must admit though, I am a little unsure of what was available in the early 2000s. I think that anything that came before Arduino though probably had at best 1 out of those 3, even today most competitors only manage 2. It combines affordability with ease of use for beginners and unprecidented online open community support. I’m pretty sure that the Arduino IS something new. Posted in Arduino Hacks Tagged atmega, atmega16u2, ATMega2560, atmega328, bootloader, cdc, dfu, firmware Post navigation If you’re ever in an Arduino Demoscene contest with an Arduino and you’re looking for more pins and code space, now you know where to look. There are already a few samples of what this new firmware for the ’16u2 can do over on ’s blog, but we’ll expect the number of example projects using this new bootloader to explode over the coming months. Setup is simple enough, only requiring a connection between the ‘328 ISP header and the pins on the ’16u2 header. This allows for new USB functions like HID keyboard, mouse, media keys, and a gamepad, the addition of extra sensors or LEDs, and anything else you can do with a normal ‘duino. Unlike the previous HoodLoader, this version is a real bootloader for the ’16u2 that replaces the DFU bootloader with a CDC bootloader and USB serial function. Wouldn’t it be great is you could also use the ’16u2 on the Uno or Mega for some additional functionality to your Arduino sketch? That’s now a reality. has been working on the HoodLoader2 for a while now, and the current version give you the option of reprogramming the ’16u2 with custom sketches, and use seven I/O pins on this previously overlooked chip. An ATMega16u2 takes care of the USB connection, while the standard ‘328 or ‘2560 takes care of all ~duino tasks. Superliminal Advertising!) either have a chip capable of USB or rely on a V-USB implementation, the old fogies of the Arduino world, the Uno and Mega, actually have two chips. While newer Arduinos and Arduino compatibles ( including the Hackaday.io Trinket Pro.
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