動機

那一坨套件裡面有8x8 led，那就做個會動的愛心好了
反正情人節到了
是說我以為很簡單，結果看了半天的規格還是不會弄
後來決定土砲測試哪個腳位會亮這樣

開工

不管怎樣通通捅上去了
反正我不是專業出身的嘛 XDDDD
這邊用到的腳位是2~17
發現板子上的a0~a3 代表14~17

然後把led蓋上去

接下來做了個簡單的測試，看剛剛亂插的到底是哪個
在這之前我先做好變數定義
我開了個google試算表，然後劃出我想畫的愛心

接下來再code裡面定義

const int row1 = 2; 
const int row2 = 7; 
const int row3 = 14; 
const int row4 = 5; 
const int row5 = 13; 
const int row6 = 15; 
const int row7 = 12; 
const int row8 = 17; 

const int col1 = 6;
const int col2 = 11; 
const int col3 = 10; 
const int col4 = 3; 
const int col5 = 16; 
const int col6 = 4; 
const int col7 = 8; 
const int col8 = 9;

是說我剛剛不是亂插的嗎，為啥我知道哪個pin對上哪個row col
因為我做了個實驗
我先把2點亮

digitalWrite(2,1);

然後幸運的發現第一排亮了，所以row1就是2了
接下來我也把pin 3 點亮

digitalWrite(2,1);
digitalWrite(3,1);

col4就出來了！
接下來其他的pin跟著如法炮製就行了

動畫

接下來利用人眼視覺殘留的技巧，一行一行的亮
參照剛剛我用的試算表
這樣就會出現漂亮的心型

id heart1(){
  digitalWrite(col1,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col8,1);
  digitalWrite(row2,1);//row2
  digitalWrite(row2,0);
  digitalWrite(col1,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col8,0);

  
  digitalWrite(col2,1);
  digitalWrite(col3,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(row3,1);//row3
  digitalWrite(row3,0);
  digitalWrite(col2,0);
  digitalWrite(col3,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);

...略

可是不會動還不夠潮阿
所以我又做了一個小愛心
然後再led上面寫情人節快樂
接著讓他loop

完成！

全部的程式

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

// Set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int row1 = 2; // the number of the row pin 9
const int row2 = 7; // the number of the row pin 14
const int row3 = 14; // the number of the row pin 8
const int row4 = 5; // the number of the row pin 12
const int row5 = 13; // the number of the row pin 1
const int row6 = 15; // the number of the row pin 7
const int row7 = 12; // the number of the row pin 2
const int row8 = 17; // the number of the row pin 5

const int col1 = 6; // the number of the col pin 13
const int col2 = 11; // the number of the col pin 3
const int col3 = 10; // the number of the col pin 4
const int col4 = 3; // the number of the col pin 10
const int col5 = 16; // the number of the col pin 6
const int col6 = 4; // the number of the col pin 11
const int col7 = 8; // the number of the col pin 15
const int col8 = 9; // the number of the col pin 16


void setup()
{
 // initialize the LCD
 lcd.begin();
  for(int i=2;i<=17;i++)
  {
  pinMode(i, OUTPUT);
  }

}

void loop()
{
   int count;
  lcd.clear();
  lcd.print("Happy");
  lcd.setCursor(0, 1);   
  lcd.print("Valentine's Day");
  for(count=0;count<=2000;count++){
    heart2();
    }
  for(count=0;count<=2000;count++){
    heart1();
    }
  lcd.clear();
  lcd.setCursor(3, 0);
  lcd.print("Hey Girl");
  lcd.setCursor(1, 1);
  lcd.print("- I Love U -");
  for(count=0;count<=2000;count++){
    heart2();
    }
  for(count=0;count<=2000;count++){
    heart1();
    }
}
void heart1(){
  digitalWrite(col1,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col8,1);
  digitalWrite(row2,1);
  digitalWrite(row2,0);
  digitalWrite(col1,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col8,0);

  
  digitalWrite(col2,1);
  digitalWrite(col3,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(row3,1);
  digitalWrite(row3,0);
  digitalWrite(col2,0);
  digitalWrite(col3,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);

  digitalWrite(col2,1);
  digitalWrite(col3,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(row4,1);
  digitalWrite(row4,0);
  digitalWrite(col2,0);
  digitalWrite(col3,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);

  digitalWrite(col2,1);
  digitalWrite(col3,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(row5,1);
  digitalWrite(row5,0);
  digitalWrite(col2,0);
  digitalWrite(col3,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);

  digitalWrite(col1,1);
  digitalWrite(col3,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col6,1);
  digitalWrite(col8,1);
  digitalWrite(row6,1);
  digitalWrite(row6,0);
  digitalWrite(col1,0);
  digitalWrite(col3,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col6,0);
  digitalWrite(col8,0);


  digitalWrite(col1,1);
  digitalWrite(col2,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row7,1);
  digitalWrite(row7,0);
  digitalWrite(col1,0);
  digitalWrite(col2,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);


  digitalWrite(col1,1);
  digitalWrite(col2,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row7,1);
  digitalWrite(row7,0);
  digitalWrite(col1,0);
  digitalWrite(col2,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);


  digitalWrite(col1,1);
  digitalWrite(col2,1);
  digitalWrite(col3,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row8,1);
  digitalWrite(row8,0);
  digitalWrite(col1,0);
  digitalWrite(col2,0);
  digitalWrite(col3,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);


  
  }
void heart2(){


  digitalWrite(col1,1);
  digitalWrite(col2,1);
  digitalWrite(col4,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row3,1);
  digitalWrite(row3,0);
  digitalWrite(col1,0);
  digitalWrite(col2,0);
  digitalWrite(col4,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);


  digitalWrite(col1,1);
  digitalWrite(col3,1);
  digitalWrite(col5,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row4,1);
  digitalWrite(row4,0);
  digitalWrite(col1,0);
  digitalWrite(col3,0);
  digitalWrite(col5,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);

  digitalWrite(col1,1);
  digitalWrite(col3,1);
  digitalWrite(col4,1);
  digitalWrite(col5,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row5,1);
  digitalWrite(row5,0);
  digitalWrite(col1,0);
  digitalWrite(col3,0);
  digitalWrite(col4,0);
  digitalWrite(col5,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);


  digitalWrite(col1,1);
  digitalWrite(col2,1);
  digitalWrite(col4,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row6,1);
  digitalWrite(row6,0);
  digitalWrite(col1,0);
  digitalWrite(col2,0);
  digitalWrite(col4,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);


  digitalWrite(col1,1);
  digitalWrite(col2,1);
  digitalWrite(col3,1);
  digitalWrite(col5,1);
  digitalWrite(col6,1);
  digitalWrite(col7,1);
  digitalWrite(col8,1);
  digitalWrite(row7,1);
  digitalWrite(row7,0);
  digitalWrite(col1,0);
  digitalWrite(col2,0);
  digitalWrite(col3,0);
  digitalWrite(col5,0);
  digitalWrite(col6,0);
  digitalWrite(col7,0);
  digitalWrite(col8,0);

  
  }
void clear(){
  }

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【Arduino】8x8 led 新手玩樂

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