HootLoader2 allows you to customize the ATMega16u2 USB-Serial bridge on Arduino Uno | Embedded Lab
![4. Arduino Technical Details - Arduino: A Technical Reference [Book]](https://www.oreilly.com/library/view/arduino-a-technical/9781491934319/assets/aian_0402.png "4. Arduino Technical Details - Arduino: A Technical Reference [Book]")
4. Arduino Technical Details - Arduino: A Technical Reference [Book]
Elegoo UNO R3 Board ATmega328P ATMEGA16U2 with USB Cable for Arduino - Newegg.com
Atmega16u2 - self-powered USB device - should I leave USB VCC disconnected? | AVR Freaks
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usb - Stock (factory) bootloader in ATmega16U2 - Electrical Engineering Stack Exchange
Loading Arduino Bootloader to a brand new ATMEL Microcontroller chip
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How to Reburn the firmware onto Atmega16u2 - Wiki
Mega 2560 R3 with ATmega16U2 USB - ProtoSupplies
ATMEGA16U2-MU Microcontroller Introduction | WIN SOURCE BLOG
Arduino from Scratch Part 8: ATMEGA16U2 Subsystem
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ZYLtech ATmega328P ATMEGA16U2 Compatible with UNO R3 for Arduino w/ USB Cable - ZYLtech Engineering, LLC
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How to Reburn the firmware onto Atmega16u2 - Wiki
Arduino Uno Rev3 Board (ATmega16U2 + USB Cable) — Maker Portal
Arduino from Scratch Part 8: ATMEGA16U2 Subsystem
Amazon.com: New ATMEGA16U2 Board for Arduino Mega 2560 R3 Board Kit Compatible with USB Cable : Electronics
