Arduino UNO R3

The Arduino Uno R3 is a microcontroller board based on the ATmega328P, ideal for beginners in electronics and coding. It has 14 digital I/O pins, 6 analog inputs, and runs at 5V with a 16 MHz clock. The board includes 32 KB flash memory, USB connectivity, and a power jack. It’s programmable via the Arduino IDE using C/C++, and supports UART, SPI, and I2C communication. Its simplicity, expandability with shields, and strong community support make it great for DIY and IoT projects.