Introduction: Magical - Weather Reactive Egg

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About: Hi, I am Muhammed Basheer, and I am passionate about creation and tinkering, especially love the challenge of developing innovative solutions!

Halloween is all about surprises, creativity, and a touch of magic. This year, I wanted to create something different something that combines technology, art, and a spooky vibe. That’s how the Magic Egg was born.

The Magic Egg is a DIY weather reactive light hidden inside an eggshell. It changes color based on the current weather conditions outside. Imagine an egg that glows an eerie blue during a storm, a fiery orange on a sunny day, or a mysterious purple when the skies turn cloudy. it will be look like a normal egg if there is no power. It’s simple, smart, and absolutely mesmerizing.

It’s the perfect Halloween decoration for tech lovers, spooky, and fun to build!

Supplies

  1. A real eggshell (cleaned and dried)


  1. 1 × ESP8266 (NodeMCU or Wemos D1 Mini)


  1. 3 × WS2812B / NeoPixel LED


  1. Jumper wires and soldering tools


  1. Power source (USB or battery)


  1. Formboard

Step 1: How It Works

The ESP8266 connects to your Wi-Fi and fetches live weather data using the OpenWeatherMap API. The temperature and weather conditions are then translated into colors using the NeoPixel LED inside the egg.

For example:

  1. Rainy → Blue
  2. Sunny → Yellow
  3. Hot → Red

The LED is placed inside a real eggshell for a unique and minimal design.

Step 2: Prepare the Eggshell

Carefully crack the egg from the top and remove the contents. Rinse and dry the shell completely. Make a small hole at the bottom for the wires to pass through. You can paint the shell or keep it natural for a minimal look.

Step 3: Wire the Components

Connect the NeoPixel LED to the ESP8266 as follows:

Data → D4 (GPIO2)

VCC → 5V

GND → GND

Step 4: Get Your Weather API Key

Go go Openwheatherand sign in.

Step 5: Get Your Weather API Key

Click on profile and click My Api Keys

Step 6: Get Your Weather API Key

Enter an api name inside create key. Here my api name is weather.

Step 7: Get Your Weather API Key

Copy the api key.


Use paid features, for more accurate and real-time weather data.

Step 8: Step 4: Set Up Arduino IDE

Install:

  1. ESP8266 Board Package (via Board Manager)
  2. Adafruit NeoPixel Library
  3. ArduinoJSON Library


Step 9: Code

Download and open this code on Arduino IDE.

Attachments

Step 10: Enter Credentials


const char* ssid = "home"; //replace with your wifi name
const char* password = "password"; //replace with your wifi password
const String apiKey = "// Replace with your key"; // Replace with your key
const float latitude = 1123.23; //replace with your latitude
const float longitude = 235.2785; //replace with your longitude

Update the Credentials with yours and upload the code.

Step 11: Base Box

Using a 2mm form board, i made box for the base part and covered it using wooden style papers.

Step 12: Assembling

Place the NeoPixel inside the eggshell and pass the wires through the bottom hole. Mount the egg on a small holder, connect the ESP8266 to power, and watch the colors change automatically based on the weather outside.

Step 13: Final Output

And that’s it! Your Magic Egg is ready to light up and change colors based on the weather. A small DIY project, but full of magic and fun. Even if you don't integrate with api , just put some neo pixel inside an eggshell and decorate it. Happy making!