Arduino Nano CH340 (Clone) – ATmega328P 5V 16MHz Mini Development Board

The Arduino Nano CH340 (Clone) is a compact microcontroller development board based on the ATmega328P-AU. It offers the familiar Arduino Nano architecture in a small board suitable for breadboard prototyping and space-constrained projects.

The board includes 8 analog inputs, digital I/O, PWM outputs, UART serial communication, I2C, SPI, and ICSP programming support, making it suitable for connecting a wide range of sensors and peripherals. The ATmega328P provides 32KB flash memory, 2KB SRAM, and 1KB EEPROM.

The onboard CH340G handles USB-to-serial communication. For the supplied old-bootloader variant, select Arduino Nano → ATmega328P (Old Bootloader) in the Arduino IDE when programming. If the computer does not recognize the board, install the appropriate CH340 driver and use a proper data-capable Mini USB cable.

Features

• ATmega328P-AU microcontroller
• 5V operating logic
• 16MHz clock speed
• CH340G USB-to-Serial interface
• 8 analog inputs, A0–A7
• 22 digital I/O functions
• 6 PWM-capable digital outputs
• UART, I2C, and SPI communication support
• Mini USB programming interface
• ICSP programming support
• Compact and breadboard-friendly design
• Pre-installed bootloader
• Suitable for Arduino IDE programming

Applications

• Robotics and robot control
• Line-following and mini robot projects
• Sensor interfacing
• Home automation
• IoT prototypes
• Data acquisition
• LED and display projects
• Relay and actuator control
• Educational electronics
• Breadboard prototyping
• Embedded control systems

How to Use

1. Connect the Nano to a computer using a Mini USB data cable.
2. Install the CH340 driver if the board is not detected automatically.
3. Open the Arduino IDE.
4. Select Arduino Nano as the board.
5. For the supplied old-bootloader variant, select ATmega328P (Old Bootloader) under the Processor option.
6. Select the correct COM/serial port.
7. Upload your Arduino sketch.
8. Connect sensors, displays, LEDs, or other peripherals according to their voltage and current requirements.

Important Notes

• This is a clone/compatible Arduino Nano board, not an official Arduino-branded board.
• Product images and component/PCB brands may vary from the actual stock.
• The supplied variant uses the CH340G USB interface.
• A CH340 driver may be required for computer recognition.
• The Old Bootloader setting may be required for successful uploading on this variant.
• Do not connect 5V logic directly to 3.3V-only peripherals unless appropriate level shifting is used.
• Do not drive motors or other high-current loads directly from GPIO pins; use a suitable motor driver or switching circuit.
• When powering through the external input/VIN, use an appropriate regulated supply and avoid excessive input voltage to prevent regulator overheating.
• Always verify wiring and polarity before applying power.

Package Includes

• 1 × Arduino Nano CH340 (Clone) Development Board