66 lines
No EOL
1.6 KiB
C++
66 lines
No EOL
1.6 KiB
C++
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
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MatrixPanel_I2S_DMA *display = nullptr;
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const byte row0 = 2+0*11;
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const byte row1 = 2+1*11;
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const byte row2 = 2+2*11;
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int start_x = 0;
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int buffer_id = 0;
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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);
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Serial.begin(115200);
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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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mxconfig.clkphase = true;
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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 pre-defined in the library
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start_x = display->width();
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}
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const int square_size = 16;
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void loop()
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{
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display->flipDMABuffer();
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//if ( !display->backbuffready() ) return;
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//display->showDMABuffer();
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display->clearScreen();
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buffer_id ^= 1;
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// Blue square on the left is printed to BOTH buffers.
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display->fillRect(0, 0, square_size/2, square_size/2, display->color565(0,0,200));
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start_x--;
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if (buffer_id)
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{
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display->setCursor(3, row1);
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display->setTextColor(display->color565(200, 0, 0));
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display->fillRect(start_x, 6, square_size, square_size, display->color565(200,0,0));
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//delay(40); // simulate slow drawing operation
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}
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else
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{
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display->setCursor(3, row2);
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display->setTextColor(display->color565(0, 200, 0));
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display->fillRect(10, start_x, square_size, square_size, display->color565(0,200,0));
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}
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display->printf("Buffer %d", buffer_id);
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if (start_x < (-1*square_size)) start_x = display->width()+square_size;
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} |