Arduino Uno Original – R3

The Arduino Uno R3 is a microcontroller development board based on the ATmega328P microcontroller. It can be powered, programmed, and communicated with directly from a computer using a USB cable. The board is widely used in education, electronics labs, robotics, IoT, and automation projects due to its ease of use and versatility.

Key Features
The board features the ATmega328P microcontroller with a 16 MHz clock speed, 32 KB flash memory, 2 KB SRAM, and 1 KB EEPROM. It operates at 5V and can be powered via USB cable, DC barrel jack, or VIN pin. Connectivity is provided through a USB interface, which may use CH340G or ATmega16U2 depending on the board version.

Applications
The Arduino Uno R3 is ideal for LED and sensor projects, robotics and automation, smart home and IoT prototypes, and educational experiments, making it a versatile tool for learning and developing electronic systems.