102 lines
No EOL
3.7 KiB
C++
102 lines
No EOL
3.7 KiB
C++
// How to use this library with a FM6126 panel, thanks goes to:
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// https://github.com/hzeller/rpi-rgb-led-matrix/issues/746
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#include <Arduino.h>
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#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
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#include <FastLED.h>
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////////////////////////////////////////////////////////////////////
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// FM6126 support is still experimental
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// Output resolution and panel chain length configuration
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#define PANEL_RES_X 64 // Number of pixels wide of each INDIVIDUAL panel module.
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#define PANEL_RES_Y 32 // Number of pixels tall of each INDIVIDUAL panel module.
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#define PANEL_CHAIN 1 // Total number of panels chained one to another
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// placeholder for the matrix object
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MatrixPanel_I2S_DMA *dma_display = nullptr;
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///////////////////////////////////////////////////////////////
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// FastLED variables for pattern output
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uint16_t time_counter = 0, cycles = 0, fps = 0;
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unsigned long fps_timer;
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CRGB currentColor;
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CRGBPalette16 palettes[] = {HeatColors_p, LavaColors_p, RainbowColors_p, RainbowStripeColors_p, CloudColors_p};
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CRGBPalette16 currentPalette = palettes[0];
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CRGB ColorFromCurrentPalette(uint8_t index = 0, uint8_t brightness = 255, TBlendType blendType = LINEARBLEND) {
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return ColorFromPalette(currentPalette, index, brightness, blendType);
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}
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void setup(){
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/*
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The configuration for MatrixPanel_I2S_DMA object is held in HUB75_I2S_CFG structure,
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All options has it's predefined default values. So we can create a new structure and redefine only the options we need
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Please refer to the '2_PatternPlasma.ino' example for detailed example of how to use the MatrixPanel_I2S_DMA configuration
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if you need to change the pin mappings etc.
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*/
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HUB75_I2S_CFG mxconfig(
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PANEL_RES_X, // module width
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PANEL_RES_Y, // module height
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PANEL_CHAIN // Chain length
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);
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mxconfig.driver = HUB75_I2S_CFG::FM6126A; // in case that we use panels based on FM6126A chip, we can set it here before creating MatrixPanel_I2S_DMA object
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// OK, now we can create our matrix object
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dma_display = new MatrixPanel_I2S_DMA(mxconfig);
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// If you experience ghosting, you will need to reduce the brightness level, not all RGB Matrix
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// Panels are the same - some seem to display ghosting artefacts at lower brightness levels.
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// In the setup() function do something like:
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// let's adjust default brightness to about 75%
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dma_display->setBrightness8(192); // range is 0-255, 0 - 0%, 255 - 100%
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// Allocate memory and start DMA display
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if( not dma_display->begin() )
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Serial.println("****** !KABOOM! Insufficient memory - allocation failed ***********");
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fps_timer = millis();
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}
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void loop(){
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for (int x = 0; x < dma_display->width(); x++) {
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for (int y = 0; y < dma_display->height(); y++) {
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int16_t v = 0;
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uint8_t wibble = sin8(time_counter);
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v += sin16(x * wibble * 3 + time_counter);
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v += cos16(y * (128 - wibble) + time_counter);
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v += sin16(y * x * cos8(-time_counter) / 8);
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currentColor = ColorFromPalette(currentPalette, (v >> 8) + 127); //, brightness, currentBlendType);
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dma_display->drawPixelRGB888(x, y, currentColor.r, currentColor.g, currentColor.b);
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}
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}
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++time_counter;
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++cycles;
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++fps;
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if (cycles >= 1024) {
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time_counter = 0;
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cycles = 0;
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currentPalette = palettes[random(0,sizeof(palettes)/sizeof(palettes[0]))];
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}
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// print FPS rate every 5 seconds
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// Note: this is NOT a matrix refresh rate, it's the number of data frames being drawn to the DMA buffer per second
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if (fps_timer + 5000 < millis()){
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Serial.printf_P(PSTR("Effect fps: %d\n"), fps/5);
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fps_timer = millis();
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fps = 0;
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}
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} |