Módulo de matriz de puntos MAX7219 módulo de pantalla LED 4-en-1
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I first tried the dotMatrix on the Arduino with the Sprite and Matrix libraries. I got funny results because the column adressing is reversed. Therefore I switched to the MD_MAX72xx libraries. Make sure to change the define in the MD_MAX72xx. h file to read: #define USE_FC16_HW 1 I used the MD_Keyswitch library found at https://github.com/MajicDesigns/MD_KeySwitch and the MD_MAX72xx library found at https://github.com/MajicDesigns/MD_MAX72XX Then I pulled the source at https://github.com/MajicDesigns/MD_MAX72XX/blob/master/examples/MD_MAX72xx_ScrollChart/MD_MAX72xx_ScrollChart.ino With that you should be able to get it to work. If you use pins that are not-SPI standard, make sure to activate the call to MD_MAX72XX with four parameters, and comment out the one with two parameters.
muy buen producto y buen precio. Si no sabes cómo funciona, encontré un buen tutorial. https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/ Si pruebas los programas y ves que no funcionan con el primero. Intente cambiar los nombres de los pines que utilizará y vuelva a cargar el programa en Arduino. p.ej. PIN_CS 10 DATAPIN 11 CLK_PIN 13