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The Arduino Nano 3.0 is a compact, breadboard-friendly board based on the ATmega328. It offers the same functionality as the Arduino Uno but in a smaller size, perfect for space-saving projects. This version uses the CH340G USB chip for easy PC connection and programming via USB. It features more analog inputs and an onboard +5V AREF jumper, but no power jack. The Nano automatically switches between USB and external power. Ideal for students, hobbyists, and embedded system projects. Featured by Robo Solutions BD.