The Arduino UNO R3 Normal Development Board with USB Cable (DB0004) is one of the most popular microcontroller boards in Sri Lanka, perfect for beginners, students, and electronics enthusiasts. Powered by the ATmega328 SMD microcontroller, this open-source board offers excellent stability and performance for a wide range of projects.

The Arduino UNO is widely used for IoT, robotics, home automation, school projects, and embedded system development. With its affordable price, reliable performance, and compatibility with hundreds of sensors and shields, it’s the best starting point for anyone learning microcontroller programming.

✅ Key Specifications:

Microcontroller: ATmega328 SMD

Operating Voltage: 5V

Recommended Input Voltage: 7–9V DC

Digital I/O Pins: 14 (6 PWM outputs)

Analog Input Pins: 6

DC Current per I/O Pin: 40mA

DC Current for 3.3V Pin: 50mA

Flash Memory: 32KB (0.5KB used by bootloader)

SRAM: 2KB

EEPROM: 1KB

Clock Speed: 16 MHz

💡 The Arduino UNO R3 in Sri Lanka is ideal for students, hobbyists, and professionals who want to prototype electronics projects quickly. With its USB programming cable included, you can start coding and testing right away.

👉 This board is a must-have for Sri Lankan makers, whether you’re building IoT devices, school robotics projects, or smart home solutions.