info

  • DMA version
  • https://w.electrodragon.com/w/ESP32_DMA_RMP
  • https://www.electrodragon.com/product/rgb-matrix-panel-drive-interface-board-for-esp32-dma/

Versions:

Current V2

  • Add logic shifter to shift from signals from 3.3V to 5V
  • Lead out alone I2C pin header 4pin
  • Lead out alone light sensor IO34

Old V1 version:

  • Lead out all pins for devkitc, but only used pins for driving matrix panel for PICO.

Demos

  • V2 version
  • https://twitter.com/electro_phoenix/status/1635248053392375808

hardware setup

  • swtich between DEVKitC or PiCO
  • Please notice for devkitc, CLK = IO16, D = IO17
  • Please notice for PCIO, CLK = 32, D = 33

Library Setup

  • lib: https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-I2S-DMA
  • tested sketch: https://github.com/Edragon/Arduino-ESP32/tree/master/Sketchbook/Matrix-panel/IDD1013

Please notice the library updated default setup file

  • new setup file: esp32-default-pins.cpp
  • old setup file: #include

DEVKITC Board pin definitions

notice the differences of pin CLK and D

#define R1_PIN_DEFAULT  25
#define G1_PIN_DEFAULT  26
#define B1_PIN_DEFAULT  27
#define R2_PIN_DEFAULT  14
#define G2_PIN_DEFAULT  12
#define B2_PIN_DEFAULT  13

#define A_PIN_DEFAULT   23
#define B_PIN_DEFAULT   19
#define C_PIN_DEFAULT   5
#define D_PIN_DEFAULT   17 // pin for devkitc, for PCIO please go IO33
#define E_PIN_DEFAULT   -1 // IMPORTANT: Change to a valid pin if using a 64x64px panel.
            
#define LAT_PIN_DEFAULT 4
#define OE_PIN_DEFAULT  15
#define CLK_PIN_DEFAULT 16 // pin for devkitc, for PCIO please go IO32

PICO Board pin definitions

#define R1_PIN_DEFAULT  25
#define G1_PIN_DEFAULT  26
#define B1_PIN_DEFAULT  27
#define R2_PIN_DEFAULT  14
#define G2_PIN_DEFAULT  12
#define B2_PIN_DEFAULT  13

#define A_PIN_DEFAULT   23
#define B_PIN_DEFAULT   19
#define C_PIN_DEFAULT   5
#define D_PIN_DEFAULT   33 // different pin for pico
#define E_PIN_DEFAULT   18 // IMPORTANT: Change to a valid pin if using a 64x64px panel.
        
#define LAT_PIN_DEFAULT 4
#define OE_PIN_DEFAULT  15
#define CLK_PIN_DEFAULT 32 // different pin for pico

setup for matrix size

/*--------------------- MATRIX LILBRARY CONFIG -------------------------*/
#define PANEL_RES_X 64      // Number of pixels wide of each INDIVIDUAL panel module. 
#define PANEL_RES_Y 32     // Number of pixels tall of each INDIVIDUAL panel module.
#define PANEL_CHAIN 1      // Total number of panels chained one to another

ENV

note

  • Tedted with a 32 x 64 panel or 32 x 32
  • 64 x 64 will need to setup E-line
  • result

Jumper Setup for E-line

  • solder pins on E-18 and add jumper
  • solder pins on E-SEL1 and add jumper

Updated by customer:

  • 1) putting a jumper to E-18;
  • 2) consider the panel as 64x64 and set number of panels to 2 instead of 1.

ref

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