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ESP32 MAX7219 display

Display a character on the MAX7219 display with ESP32

Purpose of this tutorial:

In this tutorial we will see how to display the number 4 on the MAX7219 display with the ESP32 card.

Necessary components

  • ESP32
  • MAX7219 display
  • Test plate

  • Connecting wires

Mounting

To perform the assembly, we connect:

  • the VCC pin of the display to the 3.3V pin of the ESP32

  • the GND pin of the display to the GND pin of the ESP32

  • pin CS of the display to pin P5 of the ESP32

  • the DIN pin of the display to pin D2 of the ESP32

  • the CLK pin of the display to pin D4 of the ESP32

Micropython program

Here is the program which displays the number 4 on the MAX7219 display.

Note: it import the library max7219.py.




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