Arduino Uno R3 compatible board for prototyping and electronics projects
The Arduino Uno R3 Clone with USB Cable is a cost-effective alternative to the original Arduino Uno R3 that delivers comparable functionality for prototyping, learning, and general electronics development. The board is suitable for both beginners and experienced developers who need a standard Uno-style platform for building and testing circuits.
The included USB cable allows immediate connection to a computer, which helps streamline initial setup for programming and serial communication.
Main features of the Arduino Uno R3 Clone
- ATmega328P microcontroller at 16 MHz for standard Uno-style project development
- 14 digital I/O pins, including 6 PWM outputs for switches, LEDs, motors, and control signals
- 6 analogue input pins for reading sensors and variable signals
- CH340G USB-to-UART interface for USB serial communication with a computer
- Built-in LED on pin 13 for simple testing and debugging
- Support for UART, I2C, and SPI for communication with common modules and peripherals
- Arduino shield and accessory compatibility for expanded project options
What the included hardware supports in real use
This Uno-compatible board works well for common maker and educational tasks such as reading sensors, controlling outputs, testing embedded code, and building proof-of-concept electronics. The available digital pins, PWM outputs, and analogue inputs support a broad range of basic automation and interactive projects.
The built-in LED on pin 13 is useful for quick code checks and troubleshooting, especially during first-time setup or when validating simple programs without extra components.
Use cases for an Arduino Uno R3 compatible clone board
- Beginner Arduino learning with a familiar board layout and included USB cable
- Electronics prototyping for sensors, buttons, relays, displays, and communication modules
- DIY automation projects that use PWM control, serial communication, or analogue sensing
- Classroom and workshop use where a standard shield-compatible platform is needed
- Testing UART, I2C, and SPI devices in breadboard and development setups
What to know before connecting the board
The CH340G USB interface enables serial communication over USB, but some computers may require the appropriate driver for the board to communicate properly. Once connected, the Arduino Uno R3 Clone can be used for programming, debugging, and general microcontroller development in standard Uno-style workflows.
Technical specifications
| Microcontroller | ATmega328P operating at 16 MHz |
| Digital I/O Pins | 14 pins, with 6 supporting PWM output |
| Analog Input Pins | 6 pins for analogue signal reading |
| Flash Memory | 32 KB, with 0.5 KB reserved for the bootloader |
| SRAM | 2 KB |
| EEPROM | 1 KB |
| USB Interface | CH340G USB-to-UART chip |
| Power Supply | 7-12V via the barrel jack or 5V through the USB connection |
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Arduino Uno R3 Clone with USB Cable
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