Uno R3 CH340G ATmega328P Development Board (Compatible with Arduino)
The Uno R3 CH340G ATmega328P Development Board is a reliable and budget-friendly version of the original Arduino Uno R3.
It features the same ATmega328P microcontroller but uses the CH340G USB-to-Serial converter chip instead of the costlier Atmega16U2.
This makes it an excellent choice for students, hobbyists, and makers looking for an affordable board without compromising performance.
Functionally, it performs identically to the official Arduino Uno — the CH340 chip only handles USB communication and does not affect the board’s operation or performance.
With plug-and-play setup and full compatibility with the Arduino IDE, this board is ready for any electronics or robotics project.
Key Features
- Based on ATmega328P Microcontroller
- Uses CH340G USB-to-Serial Converter Chip
- Fully compatible with Arduino IDE and libraries
- Functions just like the original Arduino Uno R3
- Power via USB or external adapter (7V–12V)
- Includes a set of male header pins for customization
- Plug-and-play with easy CH340 driver installation
How to Use
- Download and install the Arduino IDE – Click Here
- Download the CH340 USB Driver – Click Here
- Connect the Uno board via USB (drivers install automatically)
- In Arduino IDE, go to Tools → Board → Arduino/Genuino Uno
- Select the correct COM Port
- Upload your sketch – you’re ready to build!
Technical Specifications
| Microcontroller | ATmega328P |
| USB Controller | CH340G |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7V – 12V |
| Input Voltage (Limit) | 6V – 20V |
| Digital I/O Pins | 14 (6 PWM outputs) |
| Analog Input Pins | 6 |
| DC Current per I/O Pin | 20mA |
| Flash Memory | 32KB (0.5KB used by bootloader) |
| SRAM | 2KB |
| EEPROM | 1KB |
| Clock Speed | 16MHz |
| USB Connection | Type-B |
| Dimensions | 68.6mm × 53.4mm |
Why Consider the Official Arduino Boards?
| Feature | Official Arduino Boards | Clone Boards |
|---|---|---|
| Warranty | ✅ 1-Year Official Warranty | ❌ None / Limited |
| Build Quality | ✅ High-Grade Components | ⚠️ Varies |
| Software Support | ✅ 100% Compatible | ⚠️ May Face Issues |
| Firmware Updates | ✅ Regular Official Releases | ❌ Rare / None |
| Durability | ✅ Long Lifespan & Stability | ⚠️ Shorter Lifespan |
Applications
- Robotics and Embedded Systems
- STEM Education & Learning Projects
- DIY Electronics and Prototyping
- IoT Device Development
- Automation and Control Systems
Package Includes
- 1 × Uno R3 CH340G ATmega328P Development Board (Compatible with Arduino)
- 1 × Set of Male Header Pins
Note: This is a clone version of the Arduino Uno R3. For long-term durability, support, and guaranteed compatibility, we recommend the official Arduino board.
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