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/**********************************************************************
* The library by default supports simple 'shift register' based panels
* with A,B,C,D,E lines to select a specific row, but there are plenty
* of examples of new chips coming on the market that work different.
*
* Please search through the project's issues. For some of these chips
* (you will need to look at the back of your panel to identify), this
* library has workarounds. This can be configured through using one of:
// mxconfig.driver = HUB75_I2S_CFG::FM6126A;
//mxconfig.driver = HUB75_I2S_CFG::ICN2038S;
//mxconfig.driver = HUB75_I2S_CFG::FM6124;
//mxconfig.driver = HUB75_I2S_CFG::MBI5124;
*/
#include <Arduino.h>
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
#include <FastLED.h>
////////////////////////////////////////////////////////////////////
// Output resolution and panel chain length configuration
#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
// placeholder for the matrix object
MatrixPanel_I2S_DMA *dma_display = nullptr;
///////////////////////////////////////////////////////////////
// FastLED variables for pattern output
uint16_t time_counter = 0, cycles = 0, fps = 0;
unsigned long fps_timer;
CRGB currentColor;
CRGBPalette16 palettes[] = {HeatColors_p, LavaColors_p, RainbowColors_p, RainbowStripeColors_p, CloudColors_p};
CRGBPalette16 currentPalette = palettes[0];
CRGB ColorFromCurrentPalette(uint8_t index = 0, uint8_t brightness = 255, TBlendType blendType = LINEARBLEND) {
return ColorFromPalette(currentPalette, index, brightness, blendType);
}
void setup(){
HUB75_I2S_CFG mxconfig(
PANEL_RES_X, // module width
PANEL_RES_Y, // module height
PANEL_CHAIN // Chain length
);
// in case that we use panels based on FM6126A chip, we can set it here before creating MatrixPanel_I2S_DMA object
mxconfig.driver = HUB75_I2S_CFG::FM6126A;
//mxconfig.driver = HUB75_I2S_CFG::ICN2038S;
//mxconfig.driver = HUB75_I2S_CFG::FM6124;
//mxconfig.driver = HUB75_I2S_CFG::MBI5124;
// OK, now we can create our matrix object
dma_display = new MatrixPanel_I2S_DMA(mxconfig);
// If you experience ghosting, you will need to reduce the brightness level, not all RGB Matrix
// Panels are the same - some seem to display ghosting artefacts at lower brightness levels.
// In the setup() function do something like:
// let's adjust default brightness to about 75%
dma_display->setBrightness8(192); // range is 0-255, 0 - 0%, 255 - 100%
// Allocate memory and start DMA display
if( not dma_display->begin() )
Serial.println("****** !KABOOM! Insufficient memory - allocation failed ***********");
fps_timer = millis();
}
void loop(){
for (int x = 0; x < dma_display->width(); x++) {
for (int y = 0; y < dma_display->height(); y++) {
int16_t v = 0;
uint8_t wibble = sin8(time_counter);
v += sin16(x * wibble * 3 + time_counter);
v += cos16(y * (128 - wibble) + time_counter);
v += sin16(y * x * cos8(-time_counter) / 8);
currentColor = ColorFromPalette(currentPalette, (v >> 8) + 127); //, brightness, currentBlendType);
dma_display->drawPixelRGB888(x, y, currentColor.r, currentColor.g, currentColor.b);
}
}
++time_counter;
++cycles;
++fps;
if (cycles >= 1024) {
time_counter = 0;
cycles = 0;
currentPalette = palettes[random(0,sizeof(palettes)/sizeof(palettes[0]))];
}
// print FPS rate every 5 seconds
// Note: this is NOT a matrix refresh rate, it's the number of data frames being drawn to the DMA buffer per second
if (fps_timer + 5000 < millis()){
Serial.printf_P(PSTR("Effect fps: %d\n"), fps/5);
fps_timer = millis();
fps = 0;
}
}
// FM6126 panel , thanks goes to:
// https://github.com/hzeller/rpi-rgb-led-matrix/issues/746
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