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/Ardui...
Previous video on how to get a YouTube API key working for an ESP8266 subscriber counter:
• ESP8266 Subscriber Counter Tutorial
Project inspired by eTechPath’s scrolling message with web interface:
https://www.etechpath.com/how-to-cont...
MAX7219 Library used: Majic Designs
https://github.com/MajicDesigns/MD_MA...
Other MAX7219 project examples and utilities:
Tronixstuff: https://tronixstuff.com/2013/10/11/tu...
Brainy Bits: https://www.brainy-bits.com/how-to-co...
8x8 matrix image creator: https://xantorohara.github.io/led-mat...
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