Ponzius

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• Need help with ESP32 and MAX7219

  @Ponzius started

  • 4 comments
  • 2,284 views

  @ConorONeill replied
• Need help with ESP32 and MAX7219

  in ESP32 • 4 years, 3 months

  

  Hi,
  thank you for your help, but using software SPI does not fix it.
  I've try also non SPI Port as software SPI no luck.
  What bothers written in C it works fine.

  P.S: Sorry for double-posting I found the right forum after making the first post.

• Need help with ESP32 and MAX7219

  in ESP32 • 4 years, 3 months

  

  Hi,
  I try to wire my LED Matrix(MAX7219) up to a ESP32 DEVKIT V1. To my knowledge, this code should turn all LEDs on:

  SPI2.setup({mosi:D23, sck:D18});
      let g = require('MAX7219').connect(SPI2,D5,4);
      g.displayTest(true);
  

  but nothing happens. At the start all LEDs flicker and than turn off or stay lit in random patterns.
  I double checked the wiring . I'm trying to connect via VSPI Ports on the board.