HID-class USB Serial Communication for AVRs using V-USB - YouTube
Atmel AVR XMEGA Series with USB and High-precision Analog | Elektor Magazine
Pololu USB AVR Programmer v2 User's Guide
AVR ONE!
Pololu USB AVR Programmer
Pololu USB AVR Programmer v2 User's Guide
Amazon.com: Geekstory for ATMEL 51 AVR USB ISP ASP Microcontroller Programmer Downloader with Cable + 10Pin to 6Pin Adapter Board for Ender 3 or Ender 3 Pro : Electronics
USB Generic HID Open Source Framework for Atmel AVR and Windows – Waiting for Friday
tuxgraphics.org: avr-usb: A USB slide show presenter (aka USB powerpoint presenter)
Arduino AVR C++: Simple USB HID multimedia keyboard based upon standard keyboard class - Stack Overflow
Programming ATmega16/32 using AVR-USBASP | Random Codes - Elementz Tech Blog
AVR-USB-STK
Amazon.com: 10 Pin to Standard 6 Pin Adapter Board + USBASP USBISP AVR Programmer USB ATMEGA8 ATMEGA128 ATtiny/CAN/PWM for Arduino : Electronics
V-USB - A Firmware-Only USB Driver for Atmel AVR Microcontrollers
Learning To Use The V-USB (AVR USB Firmware) Library | Hackaday
HID-class USB Serial Communication for AVRs using V-USB « RAYSHOBBY.NET