![Arduino Uno R3 (with Atmega 16u2) and MAC OSX 10.11 (El capitan) not working - Arduino Stack Exchange Arduino Uno R3 (with Atmega 16u2) and MAC OSX 10.11 (El capitan) not working - Arduino Stack Exchange](https://i.stack.imgur.com/mvkwF.jpg)
Arduino Uno R3 (with Atmega 16u2) and MAC OSX 10.11 (El capitan) not working - Arduino Stack Exchange
![How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables](https://content.instructables.com/FDR/OS1H/IEY3A3PG/FDROS1HIEY3A3PG.jpg?auto=webp&frame=1&width=320&md=72fc4f44b1c194987095abd9c415be7d)
How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables
![How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables](https://content.instructables.com/FLO/77NK/IFD6NM8T/FLO77NKIFD6NM8T.jpg?auto=webp&fit=bounds&frame=1&width=1024)
How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables
GitHub - tewarid/arduino-usb-serial: USB Serial firmware for the ATmega16U2 on the Arduino Uno R3 and Arduino Mega 2560
![How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables How to Restore the Arduino UNO R3 ATmega16U2 Firmware Using the Arduino IDE : 4 Steps - Instructables](https://content.instructables.com/FQJ/ZMSL/KTH8A4DP/FQJZMSLKTH8A4DP.jpg?auto=webp&fit=bounds&frame=1&height=1024&width=1024)