MAX7219 WiFi Sub Counter - ESP8266 WiFi Scrolling Message

Using the MAX7219 to control four 8x8 LED matrix modules and create a scrolling text sign. Text scrolling examples include a YouTube subscriber counter and custom text entered via WiFi into a web server running in the ESP8266.

Note: The LED library defaults to 50% intensity so I should make a test sketch to ensure running all LEDs at full intensity and check the current consumption again. Will update at that point.

Sketch & schematic: https://github.com/GadgetReboot/Arduino/tree/master/ESP8266/MAX7219/Scrolling_Text_From_Web_And_Youtube_Counter

Previous video on how to get a YouTube API key working for an ESP8266 subscriber counter: https://youtu.be/rrxsMuR0Yko

Project inspired by eTechPath’s scrolling message with web interface: https://www.etechpath.com/how-to-control-max7219-led-matrix-with-esp8266-wifi-module/

MAX7219 Library used: Majic Designs https://github.com/MajicDesigns/MD_MAX72XX

Other MAX7219 project examples and utilities: Tronixstuff: https://tronixstuff.com/2013/10/11/tutorial-arduino-max7219-led-display-driver-ic/ Brainy Bits: https://www.brainy-bits.com/how-to-control-max7219-led-matrix/
8x8 matrix image creator: https://xantorohara.github.io/led-matrix-editor/

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