Arduino UNO R3 Microcontroller, Specifications, and Pin Diagram
![Arduino UNO R3 Microcontroller, Specifications, and Pin Diagram](https://www.elprocus.com/wp-content/uploads/Arduino-Uno-R3-Pin-Diagram-Specifications-and-Applications.png)
![](https://www.elprocus.com/wp-content/uploads/Arduino-Uno-R3-Pin-Diagram-Specifications-and-Applications.png)
Arduino UNO R3 Microcontroller, Specifications, and Pin Diagram
![](https://store.arduino.cc/cdn/shop/products/ABX00087_00.front_c8feb889-7a21-48c8-8648-f84288136102_1200x900.jpg?v=1701256180)
Arduino® UNO R4 WiFi — Arduino Official Store
![](https://dfimg.dfrobot.com/data/DFR0216/20140710/_DSC0342_750x500.jpg)
DFRduino UNO R3 - Compatible with Arduino Uno - DFRobot
![](https://www.pcboard.ca/image/cache/catalog/products/arduino/wavgat-r3/wavgat-arduino-r3-sml-800x800.jpg)
Arduino Uno R3 from Wavgat
![](https://components101.com/sites/default/files/inline-images/Arduino-Uno-ATmega328P-Pin-Mapping1.png)
Arduino Uno Pinout, Specifications, Pin Configuration & Programming
![](https://dronebotworkshop.com/wp-content/uploads/2023/07/%E2%80%8EArduino-Uno-R4-Boards.jpg)
Arduino Uno R4 - Minima & WiFi - Getting Started
![](https://www.makerguides.com/wp-content/uploads/2022/02/Pin-Diagram-of-ESP8266-1024x834.jpg)
NodeMCU ESP8266 Vs. Arduino UNO Board
Motor driver speed control with Arduino Direction control using push buttons and Arduino
![](http://www.firgelliauto.com/cdn/shop/products/Arduino_Board.jpg?v=1596129999)
Arduino Uno R3 Microcontroller
![](https://images.prismic.io/circuito/e57c56f68189f03145726786306d6a8ca7168571_arduino-uno-pinout-digital-pins-pwm-1.png?auto=compress,format)
The Full Arduino Uno Pinout Guide [including diagram]