![Mega2560 ATMEGA16U2 / Pro Mini MEGA 2560 Mega+WiFi R3 ATmega2560 Chip CH340G For Arduino UNO R3 Development Board WeMos ESP8266 Mega2560 ATMEGA16U2 / Pro Mini MEGA 2560 Mega+WiFi R3 ATmega2560 Chip CH340G For Arduino UNO R3 Development Board WeMos ESP8266](https://ae01.alicdn.com/kf/Sb35a7402393e414fa12bc46d3e8532d4p/Mega2560-ATMEGA16U2-Pro-Mini-MEGA-2560-Mega-WiFi-R3-ATmega2560-Chip-CH340G-For-Arduino-UNO-R3.jpg_.webp)
Mega2560 ATMEGA16U2 / Pro Mini MEGA 2560 Mega+WiFi R3 ATmega2560 Chip CH340G For Arduino UNO R3 Development Board WeMos ESP8266
![Arduino Microcontroller Technical Details : Arduino (UNO R3) micro-controller ATmega 328 CPU (“industry-standard” micro-controller CPU) ?? MHz clock speed. - ppt download Arduino Microcontroller Technical Details : Arduino (UNO R3) micro-controller ATmega 328 CPU (“industry-standard” micro-controller CPU) ?? MHz clock speed. - ppt download](https://slideplayer.com/10287295/35/images/slide_1.jpg)
Arduino Microcontroller Technical Details : Arduino (UNO R3) micro-controller ATmega 328 CPU (“industry-standard” micro-controller CPU) ?? MHz clock speed. - ppt download
![Uno R3 Development Board Atmega328p Ch340 Ch340g For Arduino Uno R3 With Straight Pin Header With Cable - Integrated Circuits - AliExpress Uno R3 Development Board Atmega328p Ch340 Ch340g For Arduino Uno R3 With Straight Pin Header With Cable - Integrated Circuits - AliExpress](https://ae01.alicdn.com/kf/H0c2e1636313c434cb98e39193336eb67F/UNO-R3-Development-Board-ATmega328P-CH340-CH340G-For-Arduino-UNO-R3-With-Straight-Pin-Header-with.jpg_640x640.jpg)
Uno R3 Development Board Atmega328p Ch340 Ch340g For Arduino Uno R3 With Straight Pin Header With Cable - Integrated Circuits - AliExpress
![Elegoo For Arduino UNO R3 Project Most Complete Starter Kit w/ Tutorial for MEGA2560 UNO NANO (63 Items) - Newegg.com Elegoo For Arduino UNO R3 Project Most Complete Starter Kit w/ Tutorial for MEGA2560 UNO NANO (63 Items) - Newegg.com](https://c1.neweggimages.com/ProductImage/ABFW_131314400495926824tu614lLNFh.jpg)
Elegoo For Arduino UNO R3 Project Most Complete Starter Kit w/ Tutorial for MEGA2560 UNO NANO (63 Items) - Newegg.com
![The ADIY Uno R3 CH340C ATmega328P Development Robust Board is the low-cost version of the popular UNO R3 Arduino. The ADIY Uno R3 CH340C ATmega328P Development Robust Board is the low-cost version of the popular UNO R3 Arduino.](https://www.eletimes.com/wp-content/uploads/2023/02/article-image-3.jpg)
The ADIY Uno R3 CH340C ATmega328P Development Robust Board is the low-cost version of the popular UNO R3 Arduino.
![Arduino Uno R3 Development Board Origional Product Italy Import English Version Avr Single-chip Module - Cable Winder - AliExpress Arduino Uno R3 Development Board Origional Product Italy Import English Version Avr Single-chip Module - Cable Winder - AliExpress](https://ae01.alicdn.com/kf/S966551a420784f0eb2c13522634f9df6c/Arduino-Uno-R3-Development-Board-Origional-Product-Italy-Import-English-Version-AVR-Single-Chip-Module.jpg_Q90.jpg_.webp)