Materials Needed:

ESP32 (with Wi-Fi module) OLED Display (optional) Internet connection (Wi-Fi) Steps:

1-Set Up the Environment: Ensure you have the Arduino IDE development tools and the Arduino ESP32 library installed on your computer. Connect the ESP32:

2-Connect the ESP32 to your computer via USB.

3-Code Development: Open the Arduino IDE and create a new project. You can use the "ArduinoJSON" library to parse the JSON data from the Bitcoin price API.

4-Connect to the Internet: Configure the ESP32 to connect to your local Wi-Fi network.

5-Access the Bitcoin Price API: Choose a reliable cryptocurrency price API such as CoinGecko or Coinbase Pro API. Send an HTTP request to the API to retrieve the current Bitcoin prices in JSON format.

6-Parse the Data: Use the ArduinoJSON library to parse the JSON data from the API response and extract the Bitcoin price.

7-Display the Price: If you have an OLED display, you can display the Bitcoin price on the screen. If not, you can print the price on the Arduino IDE's serial monitor.

8-Periodic Updates: Configure the ESP32 to update the Bitcoin price at regular intervals (e.g., every minute) to keep the information up-to-date.