LED Matrix Bitcoin Ticker with ESP8266

Overview

This project transforms an ESP8266 microcontroller and a MAX7219 LED matrix into a dynamic Bitcoin ticker. It displays a set of up-to-date information about Bitcoin, such as the current price, daily change, yearly high, yearly low, opening price, and much more, providing a unique and informative crypto display.

The Web Page

Control the settings using the extremely user-friendly webpage!

Features

• Real-Time Bitcoin Information: Displays a variety of helpful, up-to-date Bitcoin data, including the current price, daily change, yearly high, yearly low, opening price, and much more!
• WiFi Connectivity: Connects to the internet using WiFi to fetch real-time data.
• Web Server for Configuration: Features a web server with a simple web page for easy WiFi configuration.

Hardware Requirements

• ESP8266 Microcontroller
• MAX7219 LED Matrix
• Power supply for the ESP8266
• Jumper wires for connecting the LED Matrix to the ESP

Software Dependencies

• PlatformIO extension for Visual Studio Code (as the IDE)
• Libraries: MD_Parola.h, MD_MAX72xx.h, ESP8266WiFi.h, ESP8266HTTPClient.h, ArduinoJson.h, WiFiClientSecure.h, LittleFS.h, ESPAsyncWebServer.h, EEPROM.h, StreamUtils.h

Configuration and Usage

1. Connect the LED Matrix to the ESP8266 using jumper wires.
2. Download the source code from the repository.
3. Verify that the pinout of the LED Matrix is correct; adjust the values to match your configuration if necessary.
4. Connect the ESP to your computer via USB.
5. Use PlatformIO to write the data folder onto the flash memory of the ESP8266 (Build Filesystem Image, then Upload Filesystem Image).
6. Use PlatformIO to upload the source code to the ESP.
7. After rebooting, a Bitcoin-Ticker WiFi access point should appear. Connect to it and enter 192.168.4.1 in your browser's URL bar.
8. Create a free account at financialmodelingprep.com and enter the provided API key in the special section of the webpage.
9. If you want, you can also decide which information will be displayed on the matrix. Simply go to the Values section of the webpage and edit the settings.
10. Enter your WiFi credentials on the web page to connect the ESP to your WiFi network.
11. If a success message appears, your Bitcoin ticker is ready!
12. Enjoy your ticker! ❤️

Customization Options

• Number of LED Modules: Can be adjusted based on your setup.
• Pinout Configuration: Modify CLK, DATA, and CS pins as needed.
• Scroll Speed: Customize the scroll delay for the LED Matrix.

For advanced setup and customization instructions, refer to the comments within the main.cpp file.

Special Thanks

Special thanks to all these amazing people and their contributions: ❤️

• RobTillaart for the inspiration of the currency formatter function in his currency library.
• MajicDesigns for the MD_Parola and MD_MAX72XX libraries.
• esp8266 for the ESP8266WiFi, ESP8266HTTPClient, WiFiClientSecure, and LittleFS libraries (repository).
• bblanchon for the ArduinoJson and StreamUtils libraries.
• me-no-dev for the ESPAsyncWebServer library.

Author

Mauro Brambilla - brumaombra

License

This project is licensed under the MIT License - see the LICENSE file for details.