Description
The UNO R3 CH340G ATmega328P Development Board is an Arduino-compatible microcontroller board designed for learning electronics, programming, robotics, and embedded system development.
Powered by the ATmega328P microcontroller, this board provides digital and analog input/output pins for connecting sensors, LEDs, motors (through suitable drivers), displays, and other electronic components.
The onboard CH340G USB-to-serial converter allows the board to communicate with a computer through a USB connection. It supports programming using the Arduino IDE and is suitable for beginners, students, hobbyists, and electronics developers.
Key Features
- ATmega328P microcontroller for embedded applications
- CH340G USB-to-serial communication chip
- Arduino UNO R3 compatible design
- 14 digital input/output pins
- 6 PWM-capable digital pins
- 6 analog input pins
- Supports I2C and SPI communication
- Compatible with Arduino IDE
- USB programming and power connection
- Suitable for robotics, automation, and DIY electronics projects
Technical Specifications
| Specification | Details |
|---|---|
| Board Type | UNO R3 Compatible Development Board |
| Microcontroller | ATmega328P |
| USB-to-Serial Chip | CH340G |
| Operating Voltage | 5V |
| Input Voltage (Recommended) | 7–12V through compatible VIN/barrel input |
| Digital I/O Pins | 14 |
| PWM Pins | 6 |
| Analog Input Pins | 6 |
| Clock Speed | 16 MHz |
| Flash Memory | 32 KB (including bootloader space) |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| Communication | UART, I2C, SPI |
| Programming Interface | USB |
| Software | Arduino IDE |
Applications
- Robotics and robot car development
- LED and display control
- Sensor interfacing and monitoring
- Home automation projects
- Smart irrigation systems
- Motor control using driver modules
- IoT prototyping with additional communication modules
- Electronics education and programming practice
- DIY embedded system projects
Compatible Components and Modules
- L298N motor driver module
- HC-SR04 ultrasonic sensor
- Soil moisture sensor
- Raindrop detection sensor
- DHT11 temperature and humidity sensor
- LCD and OLED displays
- Relay modules
- Bluetooth modules such as HC-05
Important Notes
- This is an Arduino UNO R3-compatible board, not necessarily an original Arduino-branded board.
- CH340G drivers may need to be installed on some computers before the board is detected.
- Select the appropriate board and COM port in Arduino IDE before uploading code.
- The board operates with 5V logic; use suitable voltage-level conversion when connecting 3.3V-only devices.
- Do not connect motors directly to the board’s GPIO pins. Use a suitable motor driver.
- Check the board’s USB connector type before ordering, as connector versions may vary.
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