フルカラーウェルカムボードの製作

壁時計に使っているESP32と32×8 LEDパネルのスケッチを書き換えてSendai Micro Maker Faire用のウェルカムボードを作りました。

使用部品と配線はESP32と32×8フルカラーLEDでデジタル壁時計をつくるを参照してください。
外装についてはデジタル壁時計の組み立てを参照してください。

英数字の5×8フォントを作って表示させたのが新しい点です。フォントデータが96行あるので見苦しいですが、それ以外はシンプルに書いたつもりです。左端から右端に向かってLEDの色が変化していくプログラムに、”フォントピクセルだけ表示する”という条件をつけています。

フォントデータはAppleⅡeの資料を見かけたのでデータ化してみました。

//ESP32(MH-ET LIVE ESP32 MiniKIT)
//Quimat RGB LEDパネルQWS03 (8X32)
//2020.01.18 Koji Ohashi MaDA Lab@Morioka Iwate Japan

#include <FastLED.h>
#define DATA_PIN 16

#define WIDTH  32
#define HEIGHT 8
#define NUM_LEDS (WIDTH * HEIGHT)

CRGBArray<NUM_LEDS> leds;

int Pos[WIDTH][HEIGHT];
boolean FontMask[WIDTH][HEIGHT];

//96 font starting from ' '(space)
byte FFont[96*5]={
    0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x5F,0x00,0x00,
    0x00,0x07,0x00,0x07,0x00,
    0x14,0x7F,0x14,0x7F,0x14,
    0x24,0x2A,0x7F,0x2A,0x12,
    0x23,0x13,0x08,0x64,0x62,
    0x36,0x49,0x56,0x20,0x50,
    0x00,0x00,0x07,0x00,0x00,
    0x00,0x1C,0x22,0x41,0x00,
    0x00,0x41,0x22,0x1C,0x00,
    0x22,0x14,0x7F,0x14,0x22,
    0x08,0x08,0x3E,0x08,0x08,
    0x00,0x40,0x30,0x00,0x00,
    0x08,0x08,0x08,0x08,0x08,
    0x00,0x00,0x40,0x00,0x00,
    0x20,0x10,0x08,0x04,0x02,
    0x3E,0x51,0x49,0x45,0x3E,
    0x00,0x42,0x7F,0x40,0x00,
    0x62,0x51,0x49,0x49,0x46,
    0x21,0x41,0x49,0x4D,0x33,
    0x18,0x14,0x12,0x7F,0x10,
    0x27,0x45,0x45,0x45,0x39,
    0x3C,0x4A,0x49,0x49,0x31,
    0x01,0x71,0x09,0x05,0x03,
    0x36,0x49,0x49,0x49,0x36,
    0x46,0x49,0x49,0x29,0x1E,
    0x00,0x00,0x14,0x00,0x00,
    0x00,0x40,0x34,0x00,0x00,
    0x08,0x14,0x22,0x41,0x00,
    0x14,0x14,0x14,0x14,0x14,
    0x00,0x41,0x22,0x14,0x08,
    0x02,0x01,0x59,0x05,0x02,
    0x3E,0x41,0x5D,0x59,0x4E,
    0x7C,0x12,0x11,0x12,0x7C,
    0x7F,0x49,0x49,0x49,0x36,
    0x3E,0x41,0x41,0x41,0x22,
    0x7F,0x41,0x41,0x41,0x3E,
    0x7F,0x49,0x49,0x49,0x41,
    0x7F,0x09,0x09,0x09,0x01,
    0x3E,0x41,0x41,0x51,0x71,
    0x7F,0x08,0x08,0x08,0x7F,
    0x00,0x41,0x7F,0x41,0x00,
    0x20,0x40,0x40,0x40,0x3F,
    0x7F,0x08,0x14,0x22,0x41,
    0x7F,0x40,0x40,0x40,0x40,
    0x7F,0x02,0x0C,0x02,0x7F,
    0x7F,0x04,0x08,0x10,0x7F,
    0x3E,0x41,0x41,0x41,0x3E,
    0x7F,0x09,0x09,0x09,0x06,
    0x3E,0x41,0x51,0x21,0x5E,
    0x7F,0x09,0x19,0x29,0x46,
    0x26,0x49,0x49,0x49,0x32,
    0x01,0x01,0x7F,0x01,0x01,
    0x3F,0x40,0x40,0x40,0x3F,
    0x1F,0x20,0x40,0x20,0x1F,
    0x7F,0x20,0x18,0x20,0x7F,
    0x63,0x14,0x08,0x14,0x63,
    0x03,0x04,0x78,0x04,0x03,
    0x61,0x51,0x49,0x45,0x43,
    0x7F,0x7F,0x41,0x41,0x41,
    0x02,0x04,0x08,0x10,0x20,
    0x41,0x41,0x41,0x7F,0x7F,
    0x10,0x08,0x04,0x08,0x10,
    0x40,0x40,0x40,0x40,0x40,
    0x00,0x01,0x02,0x04,0x00,
    0x20,0x54,0x54,0x54,0x78,
    0x7F,0x44,0x44,0x44,0x38,
    0x38,0x44,0x44,0x44,0x44,
    0x38,0x44,0x44,0x44,0x7F,
    0x38,0x54,0x54,0x54,0x58,
    0x08,0x7E,0x09,0x09,0x02,
    0x18,0xA4,0xA4,0xA4,0x78,
    0x7F,0x04,0x04,0x04,0x78,
    0x00,0x44,0x7D,0x40,0x00,
    0x40,0x80,0x84,0x7D,0x00,
    0x00,0x7F,0x10,0x28,0x44,
    0x00,0x41,0x7F,0x40,0x00,
    0x7C,0x04,0x18,0x04,0x7C,
    0x7C,0x04,0x04,0x04,0x78,
    0x38,0x44,0x44,0x44,0x38,
    0xFC,0x24,0x24,0x24,0x18,
    0x18,0x24,0x24,0x24,0xFC,
    0x7C,0x08,0x04,0x04,0x04,
    0x48,0x54,0x54,0x54,0x24,
    0x04,0x3F,0x44,0x40,0x20,
    0x3C,0x40,0x40,0x20,0x7C,
    0x1C,0x20,0x40,0x20,0x1C,
    0x7C,0x40,0x30,0x40,0x7C,
    0x44,0x28,0x10,0x28,0x44,
    0x1C,0xA0,0xA0,0xA0,0x7C,
    0x44,0x64,0x54,0x4C,0x44,
    0x08,0x3E,0x77,0x41,0x41,
    0x00,0x00,0xFF,0x00,0x00,
    0x41,0x41,0x77,0x3E,0x08,
    0x02,0x01,0x03,0x02,0x01,
    0x2A,0x14,0x2A,0x14,0x2A,
};

int count=0;
//Display Word
char word0[] = "Nice";
char word1[] = "to";
char word2[] = "MEET";
char word3[] = "YOU";
char word4[] = "SQUARE";
char word5[] = "CUBE";
char word6[] = "PUZZLE";

void setup() { 
  Serial.begin(115200);
  FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
  //LEDS.setBrightness(20);
  LEDS.setBrightness(40);
  Serial.println("WelcomeDisplay06");
  initFontMask();
  setPosArray();
}

void loop(){  
  static uint8_t hue;
  if(count>18){ count=0;}
  if(count==0){ dispWord(word0,4);}
  if(count==2){ dispWord(word1,2);}
  if(count==4){ dispWord(word2,4);}
  if(count==6){ dispWord(word3,3);}
  if(count==8){ initFontMask();}
  if(count==9){ dispWord(word4,6);}
  if(count==12){ dispWord(word5,4);}
  if(count==15){ dispWord(word6,6);}
  
  for(int j=0;j<WIDTH;j++){
    for(int i=0; i < HEIGHT; i++){
      if(FontMask[j][i]==true){
        int led_num=Pos[j][i];
        leds[led_num] = CHSV(hue++,255,255);
      }
    }
    leds.fadeToBlackBy(10);
    FastLED.delay(50);
  }
  count=count+1;
}


void FontArray2BitMap(int Num, int Pos){
  for(int i=0;i<5;i++){
    byte font_col=FFont[Num*5+i];//FullFont
    for(int j=0;j<8;j++){
      if((font_col & 1)==1){
        FontMask[Pos+i][j]=true;
      } else {
        FontMask[Pos+i][j]=false;
      }
      font_col=font_col>>1;
    }
  }
}

void dispWord(char *s1,int n){
  initFontMask();
  for(int i=0;i<n;i++){
    FontArray2BitMap(s1[i]-' ',i*5);//from space
  }
}

void setPosArray(){
  for(int i=0; i < HEIGHT; i++){
    for(int j=0; j < WIDTH; j++){
      if(i%2==0){
        Pos[j][i]=i*WIDTH+j;
      } else{
        Pos[j][i]=(i+1)*WIDTH-j-1;
      }
    }
  }
}

void initFontMask(){
  for(int i=0; i < HEIGHT; i++){
    for(int j=0; j < WIDTH; j++){
      FontMask[j][i]=false;
    }
  }
}

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//ESP32(MH-ET LIVE ESP32 MiniKIT)

//Quimat RGB LEDパネルQWS03 (8X32)

//2020.01.18 Koji Ohashi MaDA Lab@Morioka Iwate Japan

#include <FastLED.h>

#define DATA_PIN 16

#define WIDTH 32

#define HEIGHT 8

#define NUM_LEDS (WIDTH * HEIGHT)

CRGBArray<NUM_LEDS> leds;

int Pos[WIDTH][HEIGHT];

boolean FontMask[WIDTH][HEIGHT];

//96 font starting from ' '(space)

byte FFont[96*5]={

0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x5F,0x00,0x00,

0x00,0x07,0x00,0x07,0x00,

0x14,0x7F,0x14,0x7F,0x14,

0x24,0x2A,0x7F,0x2A,0x12,

0x23,0x13,0x08,0x64,0x62,

0x36,0x49,0x56,0x20,0x50,

0x00,0x00,0x07,0x00,0x00,

0x00,0x1C,0x22,0x41,0x00,

0x00,0x41,0x22,0x1C,0x00,

0x22,0x14,0x7F,0x14,0x22,

0x08,0x08,0x3E,0x08,0x08,

0x00,0x40,0x30,0x00,0x00,

0x08,0x08,0x08,0x08,0x08,

0x00,0x00,0x40,0x00,0x00,

0x20,0x10,0x08,0x04,0x02,

0x3E,0x51,0x49,0x45,0x3E,

0x00,0x42,0x7F,0x40,0x00,

0x62,0x51,0x49,0x49,0x46,

0x21,0x41,0x49,0x4D,0x33,

0x18,0x14,0x12,0x7F,0x10,

0x27,0x45,0x45,0x45,0x39,

0x3C,0x4A,0x49,0x49,0x31,

0x01,0x71,0x09,0x05,0x03,

0x36,0x49,0x49,0x49,0x36,

0x46,0x49,0x49,0x29,0x1E,

0x00,0x00,0x14,0x00,0x00,

0x00,0x40,0x34,0x00,0x00,

0x08,0x14,0x22,0x41,0x00,

0x14,0x14,0x14,0x14,0x14,

0x00,0x41,0x22,0x14,0x08,

0x02,0x01,0x59,0x05,0x02,

0x3E,0x41,0x5D,0x59,0x4E,

0x7C,0x12,0x11,0x12,0x7C,

0x7F,0x49,0x49,0x49,0x36,

0x3E,0x41,0x41,0x41,0x22,

0x7F,0x41,0x41,0x41,0x3E,

0x7F,0x49,0x49,0x49,0x41,

0x7F,0x09,0x09,0x09,0x01,

0x3E,0x41,0x41,0x51,0x71,

0x7F,0x08,0x08,0x08,0x7F,

0x00,0x41,0x7F,0x41,0x00,

0x20,0x40,0x40,0x40,0x3F,

0x7F,0x08,0x14,0x22,0x41,

0x7F,0x40,0x40,0x40,0x40,

0x7F,0x02,0x0C,0x02,0x7F,

0x7F,0x04,0x08,0x10,0x7F,

0x3E,0x41,0x41,0x41,0x3E,

0x7F,0x09,0x09,0x09,0x06,

0x3E,0x41,0x51,0x21,0x5E,

0x7F,0x09,0x19,0x29,0x46,

0x26,0x49,0x49,0x49,0x32,

0x01,0x01,0x7F,0x01,0x01,

0x3F,0x40,0x40,0x40,0x3F,

0x1F,0x20,0x40,0x20,0x1F,

0x7F,0x20,0x18,0x20,0x7F,

0x63,0x14,0x08,0x14,0x63,

0x03,0x04,0x78,0x04,0x03,

0x61,0x51,0x49,0x45,0x43,

0x7F,0x7F,0x41,0x41,0x41,

0x02,0x04,0x08,0x10,0x20,

0x41,0x41,0x41,0x7F,0x7F,

0x10,0x08,0x04,0x08,0x10,

0x40,0x40,0x40,0x40,0x40,

0x00,0x01,0x02,0x04,0x00,

0x20,0x54,0x54,0x54,0x78,

0x7F,0x44,0x44,0x44,0x38,

0x38,0x44,0x44,0x44,0x44,

0x38,0x44,0x44,0x44,0x7F,

0x38,0x54,0x54,0x54,0x58,

0x08,0x7E,0x09,0x09,0x02,

0x18,0xA4,0xA4,0xA4,0x78,

0x7F,0x04,0x04,0x04,0x78,

0x00,0x44,0x7D,0x40,0x00,

0x40,0x80,0x84,0x7D,0x00,

0x00,0x7F,0x10,0x28,0x44,

0x00,0x41,0x7F,0x40,0x00,

0x7C,0x04,0x18,0x04,0x7C,

0x7C,0x04,0x04,0x04,0x78,

0x38,0x44,0x44,0x44,0x38,

0xFC,0x24,0x24,0x24,0x18,

0x18,0x24,0x24,0x24,0xFC,

0x7C,0x08,0x04,0x04,0x04,

0x48,0x54,0x54,0x54,0x24,

0x04,0x3F,0x44,0x40,0x20,

0x3C,0x40,0x40,0x20,0x7C,

0x1C,0x20,0x40,0x20,0x1C,

0x7C,0x40,0x30,0x40,0x7C,

0x44,0x28,0x10,0x28,0x44,

0x1C,0xA0,0xA0,0xA0,0x7C,

0x44,0x64,0x54,0x4C,0x44,

0x08,0x3E,0x77,0x41,0x41,

0x00,0x00,0xFF,0x00,0x00,

0x41,0x41,0x77,0x3E,0x08,

0x02,0x01,0x03,0x02,0x01,

0x2A,0x14,0x2A,0x14,0x2A,

};

int count=0;

//Display Word

char word0[] = "Nice";

char word1[] = "to";

char word2[] = "MEET";

char word3[] = "YOU";

char word4[] = "SQUARE";

char word5[] = "CUBE";

char word6[] = "PUZZLE";

void setup() {

Serial.begin(115200);

FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);

//LEDS.setBrightness(20);

LEDS.setBrightness(40);

Serial.println("WelcomeDisplay06");

initFontMask();

setPosArray();

}

void loop(){

static uint8_t hue;

if(count>18){ count=0;}

if(count==0){ dispWord(word0,4);}

if(count==2){ dispWord(word1,2);}

if(count==4){ dispWord(word2,4);}

if(count==6){ dispWord(word3,3);}

if(count==8){ initFontMask();}

if(count==9){ dispWord(word4,6);}

if(count==12){ dispWord(word5,4);}

if(count==15){ dispWord(word6,6);}

for(int j=0;j<WIDTH;j++){

for(int i=0; i < HEIGHT; i++){

if(FontMask[j][i]==true){

int led_num=Pos[j][i];

leds[led_num] = CHSV(hue++,255,255);

}

leds.fadeToBlackBy(10);

FastLED.delay(50);

}

count=count+1;

}

void FontArray2BitMap(int Num, int Pos){

for(int i=0;i<5;i++){

byte font_col=FFont[Num*5+i];//FullFont

for(int j=0;j<8;j++){

if((font_col & 1)==1){

FontMask[Pos+i][j]=true;

} else {

FontMask[Pos+i][j]=false;

}

font_col=font_col>>1;

}

void dispWord(char *s1,int n){

initFontMask();

for(int i=0;i<n;i++){

FontArray2BitMap(s1[i]-' ',i*5);//from space

}

void setPosArray(){

for(int i=0; i < HEIGHT; i++){

for(int j=0; j < WIDTH; j++){

if(i%2==0){

Pos[j][i]=i*WIDTH+j;

} else{

Pos[j][i]=(i+1)*WIDTH-j-1;

}

void initFontMask(){

for(int i=0; i < HEIGHT; i++){

for(int j=0; j < WIDTH; j++){

FontMask[j][i]=false;

}