ScStw/ESP32-HUB75-MatrixPanel-DMA
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Modified to use the new pointer based approach of this library with mxconfig.

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2BECKHAM2 2021-07-27 15:03:13 +05:30
parent e8f1c94ac6
commit 51bcbfc8c6
1 changed files with 97 additions and 61 deletions
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158
examples/1_SimpleTestShapes/1_SimpleTestShapes.ino
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@ -1,23 +1,24 @@
// Example sketch which shows how to display some patterns // Example sketch which shows how to display some patterns
// on a 64x32 LED matrix // on a 64x32 LED matrix
// //
#include <ESP32-HUB75-MatrixPanel-I2S-DMA.h> #include <ESP32-HUB75-MatrixPanel-I2S-DMA.h>
/*
* Below is an example of the 'legacy' way of initialising the MatrixPanel_I2S_DMA class.
* i.e. Matrix Width and Height will need to be confirmed as compile-time directives.
* By default the library assumes a single 64x32 pixel panel is connected.
*
* Refer to the example '2_PatternPlasma' on the new / correct way to setup this library
* for different resolutions / panel chain lengths.
*
*/
MatrixPanel_I2S_DMA dma_display;
// Or use an Alternative non-DMA library, i.e: #define PANEL_RES_X 64 // Number of pixels wide of each INDIVIDUAL panel module.
//#include <P3RGB64x32MatrixPanel.h> #define PANEL_RES_Y 32 // Number of pixels tall of each INDIVIDUAL panel module.
//P3RGB64x32MatrixPanel display; #define PANEL_CHAIN 1 // Total number of panels chained one to another
//MatrixPanel_I2S_DMA dma_display;
MatrixPanel_I2S_DMA *dma_display = nullptr;
uint16_t myBLACK = dma_display->color565(0, 0, 0);
uint16_t myWHITE = dma_display->color565(255, 255, 255);
uint16_t myRED = dma_display->color565(255, 0, 0);
uint16_t myGREEN = dma_display->color565(0, 255, 0);
uint16_t myBLUE = dma_display->color565(0, 0, 255);
// Input a value 0 to 255 to get a color value. // Input a value 0 to 255 to get a color value.
@ -25,13 +26,13 @@
// From: https://gist.github.com/davidegironi/3144efdc6d67e5df55438cc3cba613c8 // From: https://gist.github.com/davidegironi/3144efdc6d67e5df55438cc3cba613c8
uint16_t colorWheel(uint8_t pos) { uint16_t colorWheel(uint8_t pos) {
if(pos < 85) { if(pos < 85) {
return dma_display.color565(pos * 3, 255 - pos * 3, 0); return dma_display->color565(pos * 3, 255 - pos * 3, 0);
} else if(pos < 170) { } else if(pos < 170) {
pos -= 85; pos -= 85;
return dma_display.color565(255 - pos * 3, 0, pos * 3); return dma_display->color565(255 - pos * 3, 0, pos * 3);
} else { } else {
pos -= 170; pos -= 170;
return dma_display.color565(0, pos * 3, 255 - pos * 3); return dma_display->color565(0, pos * 3, 255 - pos * 3);
} }
} }
@ -39,86 +40,106 @@ void drawText(int colorWheelOffset)
{ {
// draw text with a rotating colour // draw text with a rotating colour
dma_display.setTextSize(1); // size 1 == 8 pixels high dma_display->setTextSize(1); // size 1 == 8 pixels high
dma_display.setTextWrap(false); // Don't wrap at end of line - will do ourselves dma_display->setTextWrap(false); // Don't wrap at end of line - will do ourselves
dma_display.setCursor(5, 0); // start at top left, with 8 pixel of spacing dma_display->setCursor(5, 0); // start at top left, with 8 pixel of spacing
uint8_t w = 0; uint8_t w = 0;
const char *str = "ESP32 DMA"; const char *str = "ESP32 DMA";
for (w=0; w<strlen(str); w++) { for (w=0; w<strlen(str); w++) {
dma_display.setTextColor(colorWheel((w*32)+colorWheelOffset)); dma_display->setTextColor(colorWheel((w*32)+colorWheelOffset));
dma_display.print(str[w]); dma_display->print(str[w]);
} }
dma_display.println(); dma_display->println();
dma_display.print(" "); dma_display->print(" ");
for (w=9; w<18; w++) { for (w=9; w<18; w++) {
dma_display.setTextColor(colorWheel((w*32)+colorWheelOffset)); dma_display->setTextColor(colorWheel((w*32)+colorWheelOffset));
dma_display.print("*"); dma_display->print("*");
} }
dma_display.println(); dma_display->println();
dma_display.setTextColor(dma_display.color444(15,15,15)); dma_display->setTextColor(dma_display->color444(15,15,15));
dma_display.println("LED MATRIX!"); dma_display->println("LED MATRIX!");
// print each letter with a fixed rainbow color // print each letter with a fixed rainbow color
dma_display.setTextColor(dma_display.color444(0,8,15)); dma_display->setTextColor(dma_display->color444(0,8,15));
dma_display.print('3'); dma_display->print('3');
dma_display.setTextColor(dma_display.color444(15,4,0)); dma_display->setTextColor(dma_display->color444(15,4,0));
dma_display.print('2'); dma_display->print('2');
dma_display.setTextColor(dma_display.color444(15,15,0)); dma_display->setTextColor(dma_display->color444(15,15,0));
dma_display.print('x'); dma_display->print('x');
dma_display.setTextColor(dma_display.color444(8,15,0)); dma_display->setTextColor(dma_display->color444(8,15,0));
dma_display.print('6'); dma_display->print('6');
dma_display.setTextColor(dma_display.color444(8,0,15)); dma_display->setTextColor(dma_display->color444(8,0,15));
dma_display.print('4'); dma_display->print('4');
// Jump a half character // Jump a half character
dma_display.setCursor(34, 24); dma_display->setCursor(34, 24);
dma_display.setTextColor(dma_display.color444(0,15,15)); dma_display->setTextColor(dma_display->color444(0,15,15));
dma_display.print("*"); dma_display->print("*");
dma_display.setTextColor(dma_display.color444(15,0,0)); dma_display->setTextColor(dma_display->color444(15,0,0));
dma_display.print('R'); dma_display->print('R');
dma_display.setTextColor(dma_display.color444(0,15,0)); dma_display->setTextColor(dma_display->color444(0,15,0));
dma_display.print('G'); dma_display->print('G');
dma_display.setTextColor(dma_display.color444(0,0,15)); dma_display->setTextColor(dma_display->color444(0,0,15));
dma_display.print("B"); dma_display->print("B");
dma_display.setTextColor(dma_display.color444(15,0,8)); dma_display->setTextColor(dma_display->color444(15,0,8));
dma_display.println("*"); dma_display->println("*");
} }
void setup() { void setup() {
//
HUB75_I2S_CFG mxconfig(
PANEL_RES_X, // module width
PANEL_RES_Y, // module height
PANEL_CHAIN // Chain length
);
mxconfig.gpio.e = 18;
mxconfig.clkphase = false;
mxconfig.driver = HUB75_I2S_CFG::FM6126A;
// Display Setup
dma_display = new MatrixPanel_I2S_DMA(mxconfig);
dma_display->begin();
dma_display->setBrightness8(90); //0-255
dma_display->clearScreen();
dma_display->fillScreen(myWHITE);
dma_display.begin(); // use default pins //
dma_display->begin(); // use default pins
// fix the screen with green // fix the screen with green
dma_display.fillRect(0, 0, dma_display.width(), dma_display.height(), dma_display.color444(0, 15, 0)); dma_display->fillRect(0, 0, dma_display->width(), dma_display->height(), dma_display->color444(0, 15, 0));
delay(500); delay(500);
// draw a box in yellow // draw a box in yellow
dma_display.drawRect(0, 0, dma_display.width(), dma_display.height(), dma_display.color444(15, 15, 0)); dma_display->drawRect(0, 0, dma_display->width(), dma_display->height(), dma_display->color444(15, 15, 0));
delay(500); delay(500);
// draw an 'X' in red // draw an 'X' in red
dma_display.drawLine(0, 0, dma_display.width()-1, dma_display.height()-1, dma_display.color444(15, 0, 0)); dma_display->drawLine(0, 0, dma_display->width()-1, dma_display->height()-1, dma_display->color444(15, 0, 0));
dma_display.drawLine(dma_display.width()-1, 0, 0, dma_display.height()-1, dma_display.color444(15, 0, 0)); dma_display->drawLine(dma_display->width()-1, 0, 0, dma_display->height()-1, dma_display->color444(15, 0, 0));
delay(500); delay(500);
// draw a blue circle // draw a blue circle
dma_display.drawCircle(10, 10, 10, dma_display.color444(0, 0, 15)); dma_display->drawCircle(10, 10, 10, dma_display->color444(0, 0, 15));
delay(500); delay(500);
// fill a violet circle // fill a violet circle
dma_display.fillCircle(40, 21, 10, dma_display.color444(15, 0, 15)); dma_display->fillCircle(40, 21, 10, dma_display->color444(15, 0, 15));
delay(500); delay(500);
// fill the screen with 'black' // fill the screen with 'black'
dma_display.fillScreen(dma_display.color444(0, 0, 0)); dma_display->fillScreen(dma_display->color444(0, 0, 0));
drawText(0); //drawText(0);
} }
@ -126,8 +147,23 @@ uint8_t wheelval = 0;
void loop() { void loop() {
// animate by going through the colour wheel for the first two lines // animate by going through the colour wheel for the first two lines
drawText(wheelval); //drawText(wheelval);
wheelval +=1; //wheelval +=1;
delay(20); //delay(20);
drawText(0);
delay(2000);
dma_display->clearScreen();
dma_display->fillScreen(myBLACK);
delay(2000);
dma_display->fillScreen(myBLUE);
delay(2000);
dma_display->fillScreen(myRED);
delay(2000);
dma_display->fillScreen(myGREEN);
delay(2000);
dma_display->fillScreen(myWHITE);
dma_display->clearScreen();
} }