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How to install NuttyFi2.0 Wifi IoT Board in Arduino IDE

The NuttyFi2.0 development board has its own dedicated Arduino Board Manager package. This means you can install board support directly using a custom Board Manager JSON — no need to manually pick a generic ESP32 board.

Unlike the official ESP32 package (which installs many ESP32 board definitions and increases storage usage), NuttyFi2.0 uses an independent board package, designed exclusively for NuttyFi2.0 hardware. This keeps installation lightweight, fast, and easy to manage, without unnecessary boards. It’s perfect for developers who prefer a clean, minimal, and focused development setup.

Below are step-by-step instructions to install and start using NuttyFi2.0 in Arduino IDE.

Get Started with NuttyFi2.0

🛠 Step 1: Install Arduino IDE

  1. Download and install the latest Arduino IDE from:
    https://www.arduino.cc/en/software

  2. Launch the Arduino IDE after installation.

🔗 Step 2: Add NuttyFi2.0 Board Manager URL

  • In Arduino IDE go to:Go to:

    • Windows / Linux: File → Preferences

    • macOS: Arduino IDE → Settings / Preferences

  • In Additional Boards Manager URLs, paste the following NuttyFi2.0 Board Manager link.
    • File → Preferences
https://raw.githubusercontent.com/itsbhupendrasingh/Nuttyfi/main/package/package_nuttyfi_index.json
  • Click OK.

Note: If you already have one or more URLs there, separate each with a comma.

If you want to install NuttyFi32 Board in your Arduino IDE, then just follow our another tutorial guide on How to install NuttyFi32 Board in Arduino IDE.

📥 Step 3: Install NuttyFi2.0 Board Package

  • Go to:

     
    Tools → Board → Boards Manager

Step 4: Open Boards Manager → Tools → Board → Boards Manager…

  • In the search bar type:

     
    NuttyFi2.0

  • When the board package appears, click →  Install.

  • Wait for installation to finish.

🧠 Step 4: Select NuttyFi2.0 Board

  1. Go to:

     
    Tools → Board

  2. Scroll down and select:

     
    NuttyFi2.0

💡 This loads NuttyFi2.0-specific settings (flash size, CPU, partition scheme).

🖥 Step 5: Connect Your Board and Select COM Port

  • Connect NuttyFi2.0 to your computer using a USB cable.

  • Go to:

     
    Tools → Port

  • Select the appropriate port:

    • Windows: COMx (e.g., COM4)

    • macOS/Linux: /dev/ttyUSBx or /dev/ttyACMx


⚠️ Note: The COM port shown in examples may differ on your computer. Always select the one that appears when NuttyFi2.0 is connected.

🧑‍💻 Step 6: USB Driver Installation (If Needed)

If your computer does not detect the board, you may need drivers depending on the USB-to-UART chip used:

DownLoad COM Port Driver

Note: Still the NuttyFi2.0 board does not appear in the COM port list or you face USB driver issues, please watch this troubleshooting video below:

🧪 Step 8: Upload a Test Sketch

Let’s verify the NuttyFi2.0 board by running a simple test program.

✅ Led Blink Test Sketch (inbuilt).

Copy the code below and paste it into the Arduino IDE. Upload the sketch to the NuttyFi2.0 board.

After successful upload, the on-board LED will blink at an interval of 500 ms (half a second), confirming that the board is working correctly.

Test Sketch (Blink) 

// Minimal Blink for NuttyFi2.0 inbuilt Led

#ifndef LED_BUILTIN
#define LED_BUILTIN D4 // LED is on GPIO2
#endif

void setup(){
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop(){
  digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
  delay(500);
}

✅ LED Fade Test Sketch (inbuilt)

This example demonstrates PWM-based LED fading on the NuttyFi2.0 board.

Copy the code below and paste it into the Arduino IDE, then upload the sketch to the NuttyFi2.0 board.

After a successful upload, the on-board LED will gradually fade in and fade out, verifying PWM functionality and confirming that the board is operating correctly.

LED Fade (NuttyFi2.0 IoT Board) 

// NuttyFi2.0 IoT Board onboard LED (GPIO2 / D4), active-LOW
const int LED_PIN = D4;     // or use LED_BUILTIN
const int PWM_MAX = 1023;   // Nuttyfi2.0 analogWrite range (0..1023)

void setup() {
  pinMode(LED_PIN, OUTPUT);
  analogWriteRange(PWM_MAX);
  analogWriteFreq(1000);    // 1 kHz (optional)
}

void loop() {
  // Fade IN (dim -> bright)
  for (int b = 0; b <= PWM_MAX; b += 5) {
    analogWrite(LED_PIN, PWM_MAX - b); // invert for active-LOW
    delay(5);
  }
  // Fade OUT (bright -> dim)
  for (int b = PWM_MAX; b >= 0; b -= 5) {
    analogWrite(LED_PIN, PWM_MAX - b); // invert for active-LOW
    delay(5);
  }
}
Get Started with NuttyFi2.0

⭐ NuttyFi2.0 Resources

For source code, board packages, updates, and documentation, visit the official NuttyFi GitHub repository:

NuttyFi2.0 GitHub Repository