Original Circuit Diagram: Arduino UNO R3. Now, have a look at our favorite Arduino UNO to find out the AVR chip inside. It is ATMega328P-PU, a low-power version of the traditional ATMega328-PU. The P ...

The Arduino Uno is an open-source microcontroller board based on the Microchip ATmega328P microcontroller and developed by Arduino.cc. It was first developed back in 2003 as an affordable ...

Arduino Make Your UNO Kit lets you build your own microcontroller from scratch. 11:24 am November 7, 2022 By Julian Horsey. ... “The first Arduino UNO was launched back in 2005, ...