Using ESP32 and MAX7219 to show my bilibili fans count. Display Output module Chinese make MAX7219 4-in-one Matrix display Pin Max7219 - VCC - 5V Max7219 - GND - GND Max7219 - DIN - MOSI (D7) Max7219 - CLK - SCK (D5) Max7219 - CS - D4 Video Demo https://www.bilibili.com/video/av