Arduino Uno R3 - Genuine ATmega328P Microcontroller A000066

Arduino Uno R3 - Genuine ATmega328P Microcontroller, Digital/Analog I/O Pins

Arduino Compatible UNO R3 PLUS Sensor I/O Shield Atmega328P 16U2 Expansion Board

For Arduino UNO R3 Shield Board Prototype PCB Atmega328P 2.54mm Pitch Breadboard

28 Pin ZIF IC Socket DIP 2.54mm for DIY Test Arduino Prototyping - UK Stock

For Arduino UNO R3 Shield Board Prototype PCB Atmega328P 2.54mm Pitch Breadboard