How to Use Nano 3.0 ATmega328P Type-C USB CH340 Controller Board: Examples, Pinouts, and Specs

The Nano 3.0 ATmega328P Type-C USB CH340 Controller Board by HiLetgo is a compact and versatile microcontroller board designed for a wide range of DIY electronics projects and prototyping applications. It is based on the ATmega328P microcontroller and features a Type-C USB interface for easy connectivity and programming. This board is an excellent choice for hobbyists and professionals alike, offering the functionality of an Arduino Nano with the added convenience of a modern USB Type-C connector.

• DIY electronics projects
• Prototyping and testing circuits
• Robotics and automation systems
• IoT (Internet of Things) devices
• Sensor interfacing and data logging
• Educational purposes for learning microcontroller programming

Below are the key technical details of the Nano 3.0 ATmega328P Type-C USB CH340 Controller Board:

The Nano 3.0 board has a total of 30 pins, including digital, analog, power, and communication pins. Below is the pin configuration:

1. Powering the Board:

   • Connect the board to your computer using a Type-C USB cable for power and programming.
   • Alternatively, supply power through the VIN pin (7-12V) or the 5V pin (regulated 5V).

2. Programming the Board:

   • Install the Arduino IDE on your computer.
   • Install the CH340 driver if your computer does not recognize the board.
   • Select "Arduino Nano" as the board type and "ATmega328P (Old Bootloader)" as the processor in the Arduino IDE.
   • Write your code and upload it to the board via the Type-C USB connection.

3. Connecting Components:

   • Use the digital and analog pins to connect sensors, actuators, and other components.
   • Ensure proper grounding and voltage levels to avoid damage to the board or connected devices.

• Voltage Levels: Ensure that the input voltage does not exceed the specified range (7-12V for VIN, 5V for 5V pin).
• Pin Current Limits: Each I/O pin can source or sink a maximum of 40 mA. Exceeding this limit may damage the microcontroller.
• CH340 Driver: Install the CH340 driver on your computer to enable USB communication. The driver is available for Windows, macOS, and Linux.
• Static Protection: Handle the board with care to avoid static discharge, which can damage the microcontroller.

The following example demonstrates how to blink an LED connected to pin D13:

// This example code blinks an LED connected to pin D13 on the Nano 3.0 board.
// The LED will turn on for 1 second and off for 1 second in a loop.

void setup() {
  pinMode(13, OUTPUT); // Set pin D13 as an output pin
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1000);            // Wait for 1 second
  digitalWrite(13, LOW);  // Turn the LED off
  delay(1000);            // Wait for 1 second
}

1. Board Not Recognized by Computer:

   • Ensure the CH340 driver is installed correctly.
   • Try using a different Type-C USB cable (some cables are power-only and do not support data transfer).

2. Upload Error in Arduino IDE:

   • Verify that the correct board type ("Arduino Nano") and processor ("ATmega328P (Old Bootloader)") are selected.
   • Check the COM port in the Arduino IDE and ensure it matches the one assigned to the board.

3. No Power to the Board:

   • Check the USB connection or external power supply.
   • Ensure the power source provides sufficient voltage and current.

4. Components Not Working as Expected:

   • Double-check wiring and connections.
   • Verify that the code uploaded to the board is correct and matches the circuit design.

Q: Can I power the board using a battery?
A: Yes, you can power the board using a 7-12V battery connected to the VIN pin or a 5V regulated power source connected to the 5V pin.

Q: Is the Nano 3.0 compatible with Arduino shields?
A: The Nano 3.0 is not directly compatible with standard Arduino shields due to its smaller size, but you can use jumper wires to connect shields to the board.

Q: How do I reset the board?
A: Press the reset button on the board to restart the microcontroller. This can be useful for troubleshooting or re-uploading code.