3214cd643d
* Fix double buffer example * Remove the I2S user clock config for simplicity - ESP32 turns out to be massively limited anyway to 20Mhz...
94 lines
No EOL
2.3 KiB
C++
94 lines
No EOL
2.3 KiB
C++
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
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/*
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* Below is an is the 'legacy' way of initialising the MatrixPanel_I2S_DMA class.
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* i.e. MATRIX_WIDTH and MATRIX_HEIGHT are modified by compile-time directives.
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* By default the library assumes a single 64x32 pixel panel is connected.
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*
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* Refer to the example '2_PatternPlasma' on the new / correct way to setup this library
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* for different resolutions / panel chain lengths within the sketch 'setup()'.
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*
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*/
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MatrixPanel_I2S_DMA *display = nullptr;
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const byte row0 = 2+0*10;
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const byte row1 = 2+1*10;
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const byte row2 = 2+2*10;
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void setup()
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{
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// put your setup code here, to run once:
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delay(1000); Serial.begin(115200); delay(200);
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Serial.println("...Starting Display");
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HUB75_I2S_CFG mxconfig;
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mxconfig.double_buff = true; // Turn of double buffer
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// OK, now we can create our matrix object
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display = new MatrixPanel_I2S_DMA(mxconfig);
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display->begin(); // setup display with pins as per defined in the library
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display->setTextColor(display->color565(255, 255, 255));
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// Buffer 0 test
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display->fillScreen(display->color565(128, 0, 0));
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display->setCursor(3, row0);
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display->print(F("Buffer 0"));
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display->setCursor(3, row1);
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display->print(F(" Buffer 0"));
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Serial.println("Wrote to to Buffer 0");
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display->showDMABuffer();
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delay(1500);
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// Buffer 1 test
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display->flipDMABuffer();
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display->fillScreen(display->color565(0, 128, 0)); // shouldn't see this
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display->setCursor(3, row0);
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display->print(F("Buffer 1"));
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display->setCursor(3, row2);
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display->print(F(" Buffer 1"));
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Serial.println("Wrote to to Buffer 1");
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display->showDMABuffer();
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delay(1500);
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}
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void loop() {
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// Flip the back buffer
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display->flipDMABuffer();
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// Write: Set bottow row to black
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for (int y=20;y<MATRIX_HEIGHT; y++)
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for (int x=0;x<MATRIX_WIDTH; x++)
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{
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display->drawPixelRGB888( x, y, 0, 0, 0);
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}
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// Write: Set bottom row to blue (this is what should show)
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for (int y=20;y<MATRIX_HEIGHT; y++)
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for (int x=0;x<MATRIX_WIDTH; x++)
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{
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display->drawPixelRGB888( x, y, 0, 0, 64);
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}
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// Now show this back buffer
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display->showDMABuffer();
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delay(1000);
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// Flip back buffer
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display->flipDMABuffer();
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// Show this buffer
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display->showDMABuffer();
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delay(1000);
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} |