![Amazon.com: ELEGOO Nano Board CH 340/ATmega+328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable) : Electronics Amazon.com: ELEGOO Nano Board CH 340/ATmega+328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable) : Electronics](https://m.media-amazon.com/images/I/71sfxsjTKdL._AC_UF894,1000_QL80_.jpg)
Amazon.com: ELEGOO Nano Board CH 340/ATmega+328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable) : Electronics
![Amazon.com: Sara-u AVR ATMEGA System Development Board and 5V USB ATMEGA8 ISP Programmer USBASP Downloader 51 ATTiny Module 6Pin Free Drive : Electronics Amazon.com: Sara-u AVR ATMEGA System Development Board and 5V USB ATMEGA8 ISP Programmer USBASP Downloader 51 ATTiny Module 6Pin Free Drive : Electronics](https://m.media-amazon.com/images/I/61oZewF3JCL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Sara-u AVR ATMEGA System Development Board and 5V USB ATMEGA8 ISP Programmer USBASP Downloader 51 ATTiny Module 6Pin Free Drive : Electronics
![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 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](https://m.media-amazon.com/images/I/519nqTWkAiL.jpg)
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
![uart - Flashing an ATMega microcontroller using a USB Connection - Electrical Engineering Stack Exchange uart - Flashing an ATMega microcontroller using a USB Connection - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/LoUTr.png)
uart - Flashing an ATMega microcontroller using a USB Connection - Electrical Engineering Stack Exchange
![Amazon.com: HiLetgo 51 AVR ATMEGA8 Programmer USBasp USB ISP 10 Pin USB Programmer 3.3V/5V with Cable : Electronics Amazon.com: HiLetgo 51 AVR ATMEGA8 Programmer USBasp USB ISP 10 Pin USB Programmer 3.3V/5V with Cable : Electronics](https://m.media-amazon.com/images/I/51HDklfauqL._AC_UF894,1000_QL80_.jpg)