The Arduino Uno R3 with USB Cable is a reliable and beginner-friendly microcontroller board for electronics projects. Powered by the ATmega328P microcontroller, it delivers stable performance, easy programming through the Arduino IDE, and compatibility with a wide range of sensors, modules, and shields.
Perfect for students, hobbyists, and DIY electronics enthusiasts, this board supports learning coding, robotics, automation, and IoT projects. It features 14 digital input/output pins (6 PWM), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, an ICSP header, and a reset button—everything needed for embedded electronics applications.
The included USB cable ensures seamless connection to your computer for programming and powering the board. With the Arduino Uno R3, you can develop smart devices, robots, sensor-based applications, and interactive projects with confidence.
At RobotronicsBD, we provide genuine Arduino boards with tested quality and local support, ensuring your projects run smoothly from start to finish. Build educational projects, prototypes, and IoT solutions easily with this essential development board.
⭐ Key Features
- ATmega328P microcontroller
- Fully compatible with Arduino IDE
- USB programmable (Type-B cable)
- Operates at 5V
- Ideal for robotics & automation
- Best board for beginners & students
- Supports UART, SPI, I2C communication
- Compatible with Arduino shields & modules
⚙️ Technical Specifications
| Specification | Details |
| Microcontroller | ATmega328P |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7-12V |
| Digital I/O Pins | 14 (6 PWM) |
| Analog Input Pins | 6 |
| Flash Memory | 32 KB (ATmega328P) |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Clock Speed | 16 MHz |
| USB Interface | Type B USB Cable Included |
🖥️ Pinout Diagram
- Digital Pins (0–13): Digital input/output, PWM
- Analog Pins (A0–A5): Analog sensor inputs
- Power Pins: 5V, 3.3V, GND, Vin
- ICSP Header: For in-system programming
- Reset Button: Restart the microcontroller
📊 Arduino Comparison: Uno vs Nano vs Mega
| Feature | Arduino Uno R3 | Arduino Nano V3 | Arduino Mega 2560 |
| Microcontroller | ATmega328P | ATmega328P | ATmega2560 |
| Operating Voltage | 5V | 5V | 5V |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz |
| Digital I/O Pins | 14 (6 PWM) | 14 (6 PWM) | 54 (15 PWM) |
| Analog Inputs | 6 | 8 | 16 |
| Flash Memory | 32 KB | 32 KB | 256 KB |
| SRAM | 2 KB | 2 KB | 8 KB |
| USB Interface | Type-B | Mini / Micro USB | Type-B |
| Board Size | Medium | Very Small | Large |
| Breadboard Friendly | ❌ No | ✅ Yes | ❌ No |
| Best For | Learning & Robotics | Compact Projects | Large & Complex Projects |
| Price in BD | Medium | Low | High |
🎯 Applications
- Arduino learning & training kits
- Robotics & line follower projects
- IoT & automation systems
- Final year & academic projects
- Sensor, relay & motor control projects
📦 Packaging & Box Contents
-
✅ 1 × Arduino Uno R3 Board
-
✅ 1 × USB Type-B Cable
-
✅ Bubble wrap for safe courier delivery
-
✅ Product tested before dispatch (upon buyer request)
Why Buy from RobotronicsBD?
- Best Arduino Uno R3 price in Bangladesh
- Fast delivery all over Bangladesh
- Cash on Delivery available
- Student & project-friendly support
- Trusted electronics & robotics store
❓ FAQ
Is this suitable for beginners?
✔ Yes, Arduino Uno R3 is best for learning and beginners.
Do you deliver outside Dhaka?
✔ Yes, delivery available all over Bangladesh.
Is this board tested?
✔ Yes. All products sold by RobotronicsBD go through a basic quality inspection before shipping.
In addition, upon customer request, we provide a pre-dispatch functional check to ensure the product is in proper working condition and meets quality standards.
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