pti-ledy/ledy.ino

#include <Adafruit_NeoPixel.h>
#include <WiFi.h>
#include <WebServer.h>
#include <ArduinoJson.h>
#include "index.h"
#include "fonts.h"

#ifdef __AVR__
 #include <avr/power.h> // Required for 16 MHz Adafruit Trinket
#endif

#define PIN 12

#define PANEL_PIXEL_COUNT 16
#define PANEL_COUNT 3
#define NUMPIXELS PANEL_PIXEL_COUNT*PANEL_PIXEL_COUNT*PANEL_COUNT

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

unsigned char saved_images_count = 0;
unsigned short horizontal_cursor1_position = 0;

uint32_t saved_imaged[12][16][16] = {
  {
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFFFFFF00, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000
    },
    {
      0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000
    }
  }
};


void setPixel(unsigned short x, unsigned short y, uint32_t color)
{
  if (x % 2 == 1)
  {
    y = PANEL_PIXEL_COUNT - 1 - y;
  }
  pixels.setPixelColor(y + (x * PANEL_PIXEL_COUNT), color);
}

uint32_t getPixelColor(unsigned short x, unsigned short y) {
  if (x % 2 == 1)
  {
    y = PANEL_PIXEL_COUNT - 1 - y;
  }
  return pixels.getPixelColor(y + (x * PANEL_PIXEL_COUNT));
}

void drawImageFromSaved(unsigned short offset_x, unsigned short offset_y, unsigned char i) {
  for (int row = 0; row < 16; row++) {
    for (int col = 0; col < 16; col++) {
      uint32_t px_color = saved_imaged[i][row][col];
      if (!px_color) {
        continue;
      }
      unsigned short pixel_x = col + offset_x;
      unsigned short pixel_y = row + offset_y;
      
      if (pixel_x >= 0 && pixel_x < NUMPIXELS && 
          pixel_y >= 0 && pixel_y < NUMPIXELS) {
        setPixel(pixel_x, pixel_y, px_color);
      }
    }
  }
}

void drawCharacter(const bool (*character)[5], unsigned char height, unsigned char width, unsigned short offset_x, unsigned short offset_y, uint32_t color) {
  
  for (unsigned char row = 0; row < 7; row++) {
    for (unsigned char col = 0; col < 5; col++) {
      if (character[row][col]) {
        unsigned short pixel_x = col + offset_x + horizontal_cursor1_position;
        unsigned short pixel_y = row + offset_y;
        
        if (pixel_x >= 0 && pixel_x < NUMPIXELS && 
            pixel_y >= 0 && pixel_y < NUMPIXELS) {
          setPixel(pixel_x, pixel_y, color);
        }
      }
    }
  }
  horizontal_cursor1_position += width + offset_x + 1;
}

void fillPixels(unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, uint32_t color)
{
  if (x1 > x2) {
      unsigned short tmp = x1; x1 = x2; x2 = tmp;
  }
  if (y1 > y2) {
      unsigned short tmp = y1; y1 = y2; y2 = tmp;
  }

  unsigned short width  = (unsigned short)(x2 - x1 + 1);
  unsigned short height = (unsigned short)(y2 - y1 + 1);

  for (unsigned short i = 0; i < height; i++) {
      for (unsigned short j = 0; j < width; j++) {
          setPixel(x1 + j, y1 + i, color);
      }
  }
}

void shiftGivenRectangle(unsigned short x1, unsigned short y1, unsigned short x2, unsigned short y2, unsigned char shiftBy) {
  if (x1 > x2) {
      unsigned short tmp = x1; x1 = x2; x2 = tmp;
  }
  if (y1 > y2) {
      unsigned short tmp = y1; y1 = y2; y2 = tmp;
  }

  unsigned short width  = (unsigned short)(x2 - x1 + 1);
  unsigned short height = (unsigned short)(y2 - y1 + 1);

  for (unsigned short i = 0; i < height; i++) {
      for (unsigned short j = 0; j < width + shiftBy; j++) {
        setPixel(x1 + j - shiftBy, y1 + i, getPixelColor(x1 + j, y1 + i));
        setPixel(x1 + j, y1 + i, 0x00000000);
    }
  }
}


void setup() {
  Serial.begin(115200);

  pixels.begin();
  pixels.clear();
  
  drawCharacter(font7x5['P' - '!'], 7, 5, 4, 0, 0x00030100);
  drawCharacter(font7x5['T' - '!'], 7, 5, 0, 0, 0x00030100);
  drawCharacter(font7x5['I' - '!'], 7, 5, 0, 0, 0x00030100);
  shiftGivenRectangle(0, 0, 19, 7, 3);
  
  pixels.show();
  start_server();
}

void loop() {
  handle_server();
}