244 lines
No EOL
9 KiB
C++
244 lines
No EOL
9 KiB
C++
/******************************************************************************
|
|
-----------
|
|
Steps to use
|
|
-----------
|
|
|
|
1) In ESP32-HUB75-MatrixPanel-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 (i.e. this example):
|
|
|
|
- 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()
|
|
|
|
Thanks to:
|
|
|
|
* Brian Lough for the original example as raised in this issue:
|
|
https://github.com/mrfaptastic/ESP32-HUB75-MatrixPanel-I2S-DMA/issues/26
|
|
|
|
YouTube: https://www.youtube.com/brianlough
|
|
Tindie: https://www.tindie.com/stores/brianlough/
|
|
Twitter: https://twitter.com/witnessmenow
|
|
|
|
* Galaxy-Man for the kind donation of panels make/test that this is possible:
|
|
https://github.com/Galaxy-Man
|
|
|
|
*****************************************************************************/
|
|
|
|
//#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
|
|
|
|
|
|
/******************************************************************************
|
|
* VIRTUAL DISPLAY / MATRIX PANEL CHAINING CONFIGURATION
|
|
*
|
|
* Note 1: If chaining from the top right to the left, and then S curving down
|
|
* then serpentine_chain = true and top_down_chain = true
|
|
* (these being the last two parameters of the virtualDisp(...) constructor.
|
|
*
|
|
* Note 2: If chaining starts from the bottom up, then top_down_chain = false.
|
|
*
|
|
* Note 3: By default, this library has serpentine_chain = true, that is, every
|
|
* second row has the panels 'upside down' (rotated 180), so the output
|
|
* pin of the row above is right above the input connector of the next
|
|
* row.
|
|
|
|
Example 1 panel chaining:
|
|
+-----------------+-----------------+-------------------+
|
|
| 64x32px PANEL 3 | 64x32px PANEL 2 | 64x32px PANEL 1 |
|
|
| ------------ <-------- | ------------xx |
|
|
| [OUT] | [IN] | [OUT] [IN] | [OUT] [ESP IN] |
|
|
+--------|--------+-----------------+-------------------+
|
|
| 64x32px|PANEL 4 | 64x32px PANEL 5 | 64x32px PANEL 6 |
|
|
| \|/ ----------> | -----> |
|
|
| [IN] [OUT] | [IN] [OUT] | [IN] [OUT] |
|
|
+-----------------+-----------------+-------------------+
|
|
|
|
Example 1 configuration:
|
|
|
|
#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.
|
|
|
|
#define NUM_ROWS 2 // Number of rows of chained INDIVIDUAL PANELS
|
|
#define NUM_COLS 3 // Number of INDIVIDUAL PANELS per ROW
|
|
|
|
virtualDisp(dma_display, NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y, true, true);
|
|
|
|
= 192x64 px virtual display, with the top left of panel 3 being pixel co-ord (0,0)
|
|
|
|
==========================================================
|
|
|
|
Example 2 panel chaining:
|
|
|
|
+-------------------+
|
|
| 64x32px PANEL 1 |
|
|
| ----------------- |
|
|
| [OUT] [ESP IN] |
|
|
+-------------------+
|
|
| 64x32px PANEL 2 |
|
|
| |
|
|
| [IN] [OUT] |
|
|
+-------------------+
|
|
| 64x32px PANEL 3 |
|
|
| |
|
|
| [OUT] [IN] |
|
|
+-------------------+
|
|
| 64x32px PANEL 4 |
|
|
| |
|
|
| [IN] [OUT] |
|
|
+-------------------+
|
|
|
|
Example 2 configuration:
|
|
|
|
#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.
|
|
|
|
#define NUM_ROWS 4 // Number of rows of chained INDIVIDUAL PANELS
|
|
#define NUM_COLS 1 // Number of INDIVIDUAL PANELS per ROW
|
|
|
|
virtualDisp(dma_display, NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y, true, true);
|
|
|
|
virtualDisp(dma_display, NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y, true, true);
|
|
|
|
= 128x64 px virtual display, with the top left of panel 1 being pixel co-ord (0,0)
|
|
|
|
==========================================================
|
|
|
|
Example 3 panel chaining (bottom up):
|
|
|
|
+-----------------+-----------------+
|
|
| 64x32px PANEL 4 | 64x32px PANEL 3 |
|
|
| <---------- |
|
|
| [OUT] [IN] | [OUT] [in] |
|
|
+-----------------+-----------------+
|
|
| 64x32px PANEL 1 | 64x32px PANEL 2 |
|
|
| ----------> |
|
|
| [ESP IN] [OUT] | [IN] [OUT] |
|
|
+-----------------+-----------------+
|
|
|
|
Example 1 configuration:
|
|
|
|
#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.
|
|
|
|
#define NUM_ROWS 2 // Number of rows of chained INDIVIDUAL PANELS
|
|
#define NUM_COLS 2 // Number of INDIVIDUAL PANELS per ROW
|
|
|
|
virtualDisp(dma_display, NUM_ROWS, NUM_COLS, PANEL_RES_X, PANEL_RES_Y, true, false);
|
|
|
|
= 128x64 px virtual display, with the top left of panel 4 being pixel co-ord (0,0)
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#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.
|
|
|
|
#define NUM_ROWS 2 // Number of rows of chained INDIVIDUAL PANELS
|
|
#define NUM_COLS 2 // Number of INDIVIDUAL PANELS per ROW
|
|
|
|
|
|
/******************************************************************************
|
|
* Create physical DMA panel 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, true);
|
|
|
|
|
|
/******************************************************************************
|
|
* Setup!
|
|
******************************************************************************/
|
|
void setup() {
|
|
|
|
delay(2000);
|
|
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
|
|
|
|
|
|
|
|
// Sanity checks
|
|
if (NUM_ROWS <= 1) {
|
|
Serial.println(F("There is no reason to use the VirtualDisplay class for a single horizontal chain and row!"));
|
|
}
|
|
|
|
if (dma_display.width() != NUM_ROWS*NUM_COLS*PANEL_RES_X )
|
|
{
|
|
Serial.println(F("\r\nERROR: MATRIX_WIDTH and/or MATRIX_HEIGHT in 'ESP32-HUB75-MatrixPanel-I2S-DMA.h'\r\nis not configured correctly for the requested VirtualMatrixPanel dimensions!\r\n"));
|
|
Serial.printf("WIDTH according dma_display is %d, but should be %d. Is your NUM_ROWS and NUM_COLS correct?\r\n", dma_display.width(), NUM_ROWS*NUM_COLS*PANEL_RES_X);
|
|
return;
|
|
}
|
|
|
|
// So far so good, so continue
|
|
virtualDisp.fillScreen(virtualDisp.color444(0, 0, 0));
|
|
virtualDisp.drawDisplayTest(); // draw text numbering on each screen to check connectivity
|
|
|
|
delay(3000);
|
|
|
|
Serial.println("Chain of 64x32 panels for this example:");
|
|
Serial.println("+--------+---------+");
|
|
Serial.println("| 4 | 3 |");
|
|
Serial.println("| | |");
|
|
Serial.println("+--------+---------+");
|
|
Serial.println("| 1 | 2 |");
|
|
Serial.println("| (ESP) | |");
|
|
Serial.println("+--------+---------+");
|
|
|
|
virtualDisp.setFont(&FreeSansBold12pt7b);
|
|
virtualDisp.setTextColor(virtualDisp.color565(0, 0, 255));
|
|
virtualDisp.setTextSize(2);
|
|
virtualDisp.setCursor(10, virtualDisp.height()-20);
|
|
|
|
// Red text inside red rect (2 pix in from edge)
|
|
virtualDisp.print("1234") ;
|
|
virtualDisp.drawRect(1,1, virtualDisp.width()-2, virtualDisp.height()-2, virtualDisp.color565(255,0,0));
|
|
|
|
// White line from top left to bottom right
|
|
virtualDisp.drawLine(0,0, virtualDisp.width()-1, virtualDisp.height()-1, virtualDisp.color565(255,255,255));
|
|
|
|
|
|
|
|
}
|
|
|
|
void loop() {
|
|
|
|
|
|
} // end loop
|