Arduino Uno Rev3 Original ATmega328P Development Board

The Arduino Uno Rev3 Original ATmega328P Development Board is the classic, most widely used Arduino board for beginners and professionals building embedded electronics projects in India. Based on the ATmega328P microcontroller and running at 16 MHz, the Uno Rev3 provides a stable 5V logic platform with USB connectivity for programming, serial communication and power during development. It is supported by the Arduino IDE, Arduino Web Editor and a huge ecosystem of libraries, shields, tutorials and example code. The board works by executing sketches uploaded from your computer through the USB Type-B port. The onboard ATmega16U2 acts as the USB-to-serial interface, giving the original Uno Rev3 dependable communication without low-cost USB converter chips. It can also be powered from USB, a DC barrel jack or the VIN pin, making it suitable for both desktop prototyping and standalone installations. The resettable polyfuse helps protect the host computer’s USB port from excessive current draw. For connectivity, the Arduino Uno R3 offers 14 digital input/output pins, including 6 PWM outputs for LED dimming and motor speed control, plus 6 analog input pins for reading sensors. It includes SPI, I2C and UART serial interfaces, so it can easily connect to displays, RFID modules, IMUs, RTCs, communication modules, sensor boards and Arduino-compatible shields. The board also exposes 5V, 3.3V, GND, VIN and reset pins for convenient wiring on a breadboard or expansion shield. Typical applications include STEM education, home automation, line follower robots, weather stations, data logging, relay control, servo projects, LED lighting systems and rapid proof-of-concept prototypes. In the box, you get one original Arduino Uno Rev3 board. A USB Type-B cable and external power adapter are generally purchased separately unless specified in a kit.