How to Use Elegoo Nano V3.0 Board: Examples, Pinouts, and Specs

The Elegoo Nano V3.0 Board (Manufacturer Part ID: EL-CB-010) is a compact microcontroller board based on the ATmega328P microcontroller. Designed for ease of use and integration into a wide range of projects, it features USB connectivity for programming and a variety of digital and analog I/O pins. Its small form factor makes it ideal for applications where space is limited, while its compatibility with the Arduino IDE ensures a seamless development experience.

• Prototyping and development of embedded systems
• Robotics and automation projects
• IoT (Internet of Things) devices
• Sensor data acquisition and processing
• Wearable electronics
• Educational purposes for learning microcontroller programming

The Elegoo Nano V3.0 Board is equipped with the following key features and specifications:

The Elegoo Nano V3.0 Board has a total of 30 pins, including power, digital, and analog pins. Below is the pin configuration:

1. Powering the Board:

   • Connect the board to your computer via the Mini-USB port for programming and power.
   • Alternatively, supply power through the VIN pin (7-12V recommended) or the 5V pin (regulated 5V).

2. Programming the Board:

   • Install the Arduino IDE on your computer.
   • Select "Arduino Nano" as the board type and "ATmega328P (Old Bootloader)" as the processor in the Arduino IDE.
   • Connect the board to your computer using a Mini-USB cable.
   • Write your code in the Arduino IDE and upload it to the board.

3. Connecting Components:

   • Use the digital pins (D0-D13) for digital input/output operations.
   • Use the analog pins (A0-A7) for reading analog signals (e.g., from sensors).
   • Connect external modules (e.g., I2C or SPI devices) to the appropriate communication pins.

• Ensure the input voltage does not exceed the recommended range to avoid damaging the board.
• Use appropriate resistors when connecting LEDs or other components to the digital pins to limit current.
• Avoid drawing more than 40 mA from any single I/O pin.
• Use the onboard reset button to restart the microcontroller if needed.

The Elegoo Nano V3.0 Board is fully compatible with the Arduino IDE. Below is an example code to blink an LED connected to pin D13:

// Blink an LED connected to pin D13
// This example demonstrates basic digital output functionality.

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. The board is not recognized by the computer:

   • Ensure the correct USB driver is installed. For Windows, install the CH340 driver if required.
   • Check the USB cable for damage or try a different cable.

2. Unable to upload code to the board:

   • Verify that the correct board type ("Arduino Nano") and processor ("ATmega328P (Old Bootloader)") are selected in the Arduino IDE.
   • Ensure no other program is using the COM port.
   • Press the reset button on the board before uploading.

3. The board is overheating:

   • Check the input voltage and ensure it is within the recommended range.
   • Avoid drawing excessive current from the I/O pins.

4. Analog readings are unstable:

   • Use proper grounding and shielding for analog sensors.
   • Add a capacitor between the sensor's power and ground pins to reduce noise.

Q: Can the Elegoo Nano V3.0 Board be powered by batteries?
A: Yes, you can power the board using batteries by connecting them to the VIN pin (7-12V) or the 5V pin (regulated 5V).

Q: Is the Elegoo Nano V3.0 Board compatible with Arduino shields?
A: No, the Nano form factor is not directly compatible with standard Arduino shields. However, you can use a Nano breakout board or custom wiring to connect shields.

Q: How do I reset the board?
A: Press the onboard reset button or connect the RESET pin to GND momentarily.

Q: Can I use the Elegoo Nano V3.0 Board for wireless communication?
A: Yes, you can connect wireless modules (e.g., Bluetooth, Wi-Fi) to the board via the UART, I2C, or SPI interfaces.