Uno R3 CH340G ATmega328P Board - Arduino Compatible
Uno R3 CH340G ATmega328P Development Board – Compatible with Arduino
The Uno R3 CH340G ATmega328P development board is an Arduino-compatible microcontroller board based on the ATmega328P chip. It features a CH340G USB-to-serial converter, providing reliable USB connectivity and easy programming via the Arduino IDE. Ideal for prototyping and embedded projects, this board includes 14 digital I/O pins, 6 analog inputs, and a 16 MHz crystal oscillator.
Key Specifications
| Specification | Value |
|---|---|
| Microcontroller | ATmega328P |
| USB-to-Serial | CH340G |
| Operating Voltage | 5V |
| Digital I/O Pins | 14 (6 PWM) |
| Analog Input Pins | 6 |
| Clock Speed | 16 MHz |
What You Can Build With This
- Arduino-based weather station using DHT22 sensor and LCD display
- Motor control shield for robotics with L298N driver
- Home automation system with relay modules and Bluetooth
- DIY game controller with joystick and buttons
Compatibility
This board works seamlessly with the Arduino IDE (select “Arduino Uno” as the board). It is compatible with most Arduino Uno shields and operates at 5V logic, making it suitable for sensors like ultrasonic range finders, temperature sensors, and common modules. For 3.3V sensors, use the onboard 3.3V pin with level shifting if necessary.
Wiring Notes
Connect the board to your computer using a USB Type-A to Type-B cable (not included). For external power, use a 7–12V DC adapter via the barrel jack, ensuring proper polarity. Always share a common ground when interfacing with other circuits.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino IDE?
Yes, it is fully compatible. After installing the CH340 driver, the board will appear as a COM port, and you can select “Arduino Uno” in the IDE.
Does this board come with a USB cable?
No, this product is sold without a USB cable. You will need a standard USB A-to-B cable (often used for printers) to connect it to your computer.
Can I power this board with a 9V battery?
Yes, a 9V battery connected to the VIN pin or barrel jack will power the board, but ensure it is regulated if needed for stable operation.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items