ESP32-HUB75-MatrixPanel-DMA/examples/ChainedPanels/ChainedPanels.ino
2020-08-02 22:47:02 +01:00

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5.4 KiB
C++

/*******************************************************************
This is the PatternPlasma Demo adopted for use with multiple
displays arranged in a non standard order
What is a non standard order?
When you connect multiple panels together, the library treats the
multiple panels as one big panel arranged horizontally. Arranging
the displays like this would be a standard order.
[ 4 ][ 3 ][ 2 ][ 1 ] (ESP32 is connected to 1)
If you wanted to arrange the displays vertically, or in rows and
columns this example might be able to help.
[ 4 ][ 3 ]
[ 2 ][ 1 ]
It creates a virtual screen that you draw to in the same way you would
the matrix, but it will look after mapping it back to the displays.
-----------
Steps to use
-----------
1) In ESP32-RGB64x32MatrixPanel-I2S-DMA.h:
- Set the MATRIX_HEIGHT to be the y resolution of the physical chained panels in a line (if the panels are 32 x 16, set it to be 16)
- Set the MATRIX_WIDTH to be the sum of the x resolution of all the physical chained panels (i.e. If you have 4 x (32px w x 16px h) panels, 32x4 = 128)
2) In the sketch:
- Set values for NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y. There are comments beside them
explaining what they are in more detail.
- Other than where the matrix is defined and matrix.begin in the setup, you should now be using the virtual display
for everything (drawing pixels, writing text etc). You can do a find and replace of all calls if it's an existing sketch
(just make sure you don't replace the definition and the matrix.begin)
- If the sketch makes use of MATRIX_HEIGHT or MATRIX_WIDTH, these will need to be replaced with the width and height
of your virtual screen. Either make new defines and use that, or you can use virtualDisp.width() or .height()
Parts:
ESP32 D1 Mini * - https://s.click.aliexpress.com/e/_dSi824B
ESP32 I2S Matrix Shield (From my Tindie) = https://www.tindie.com/products/brianlough/esp32-i2s-matrix-shield/
* * = Affilate
If you find what I do useful and would like to support me,
please consider becoming a sponsor on Github
https://github.com/sponsors/witnessmenow/
Written by Brian Lough
YouTube: https://www.youtube.com/brianlough
Tindie: https://www.tindie.com/stores/brianlough/
Twitter: https://twitter.com/witnessmenow
*******************************************************************/
//#define USE_CUSTOM_PINS // uncomment to use custom pins, then provide below
#define A_PIN 26
#define B_PIN 4
#define C_PIN 27
#define D_PIN 2
#define E_PIN 21
#define R1_PIN 5
#define R2_PIN 19
#define G1_PIN 17
#define G2_PIN 16
#define B1_PIN 18
#define B2_PIN 25
#define CLK_PIN 14
#define LAT_PIN 15
#define OE_PIN 13
/* Include FastLED, DMA Display (for module driving), and VirtualMatrixPanel
* to enable easy painting & graphics for a chain of individual LED modules.
*/
#define NUM_ROWS 2 // Number of rows panels in your overall display
#define NUM_COLS 1 // number of panels in each row
#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.
/* Create physical module driver class AND virtual (chained) display class. */
#include <ESP32-VirtualMatrixPanel-I2S-DMA.h>
RGB64x32MatrixPanel_I2S_DMA dma_display;
VirtualMatrixPanel virtualDisp(dma_display, NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y);
/* FastLED Global Variables for Pattern */
#include <FastLED.h>
int time_counter = 0;
int cycles = 0;
CRGBPalette16 currentPalette;
CRGB currentColor;
CRGB ColorFromCurrentPalette(uint8_t index = 0, uint8_t brightness = 255, TBlendType blendType = LINEARBLEND) {
return ColorFromPalette(currentPalette, index, brightness, blendType);
}
void setup() {
Serial.begin(115200);
Serial.println(""); Serial.println(""); Serial.println("");
Serial.println("*****************************************************");
Serial.println(" HELLO !");
Serial.println("*****************************************************");
#ifdef USE_CUSTOM_PINS
dma_display.begin(R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN, A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN ); // setup the LED matrix
#else
dma_display.begin();
#endif
// fill the screen with 'black'
//dma_display.fillScreen(dma_display.color444(0, 0, 0));
virtualDisp.fillScreen(virtualDisp.color444(0, 0, 0));
// Set current FastLED palette
currentPalette = RainbowColors_p;
virtualDisp.drawRect(4, 4, PANEL_RES_X * NUM_COLS - 8, PANEL_RES_Y * NUM_ROWS - 8, virtualDisp.color565(255, 255, 255));
delay(5000);
}
void loop() {
for (int x = 0; x < virtualDisp.width(); x++) {
for (int y = 0; y < virtualDisp.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);
virtualDisp.drawPixelRGB888(x, y, currentColor.r, currentColor.g, currentColor.b);
}
}
time_counter += 1;
cycles++;
if (cycles >= 2048) {
time_counter = 0;
cycles = 0;
}
} // end loop