点阵实验

迷南。 2022-11-20 09:46 240阅读 0赞

# 点阵实验 #

### 实验现象 ###

利用8×8点阵显示出心跳动画

### 理论学习 ###

该点阵为共阳点阵，行控制LED阳极

### 原理图 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NjcxNzMy_size_16_color_FFFFFF_t_70_pic_center]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ1NjcxNzMy_size_16_color_FFFFFF_t_70_pic_center 1]

注意：模拟I/O口不仅仅是模拟I/O的功能，同时它也具备了数字I/O口的功能，所有的I/O都有数字I/O的功能，但是模拟I/O口在这个基础之上有了模拟I/O口的功能

### 代码编写 ###

#define h1 2
    #define h2 7
    #define h3 A5
    #define h4 5
    #define h5 13 
    #define h6 A4
    #define h7 12
    #define h8 A2
    #define l1 6
    #define l2 11
    #define l3 10
    #define l4 3
    #define l5 A3
    #define l6 4
    #define l7 8
    #define l8 9
    //大心脏的显示
    unsigned char table1[8][8] = { 
    	0,0,0,0,0,0,0,0,
    	0,1,1,0,0,1,1,0,
    	1,1,1,1,1,1,1,1,
    	1,1,1,1,1,1,1,1,
    	1,1,1,1,1,1,1,1,
    	0,1,1,1,1,1,1,0,
    	0,0,1,1,1,1,0,0,
    	0,0,0,1,1,0,0,0,
    };
    //小心脏的显示
    unsigned char table2[8][8] = { 
    	0,0,0,0,0,0,0,0,
    	0,0,0,0,0,0,0,0,
    	0,0,1,0,0,1,0,0,
    	0,1,1,1,1,1,1,0,
    	0,1,1,1,1,1,1,0,
    	0,0,1,1,1,1,0,0,
    	0,0,0,1,1,0,0,0,
    	0,0,0,0,0,0,0,0,
    };
    void setup()
    { 
    	pinMode(h1, OUTPUT);
    	pinMode(h2, OUTPUT);
    	pinMode(h3, OUTPUT);
    	pinMode(h4, OUTPUT);
    	pinMode(h5, OUTPUT);
    	pinMode(h6, OUTPUT);
    	pinMode(h7, OUTPUT);
    	pinMode(h8, OUTPUT);
    	pinMode(l1, OUTPUT);
    	pinMode(l2, OUTPUT);
    	pinMode(l3, OUTPUT);
    	pinMode(l4, OUTPUT);
    	pinMode(l5, OUTPUT);
    	pinMode(l6, OUTPUT);
    	pinMode(l7, OUTPUT);
    	pinMode(l8, OUTPUT);
    }
    void display(unsigned char dat[8][8]) { 
    	digitalWrite(l1, LOW);             //选通第一列
    	digitalWrite(h1, dat[0][0]);
    	digitalWrite(h2, dat[1][0]);
    	digitalWrite(h3, dat[2][0]);
    	digitalWrite(h4, dat[3][0]);
    	digitalWrite(h5, dat[4][0]);
    	digitalWrite(h6, dat[5][0]);
    	digitalWrite(h7, dat[6][0]);
    	digitalWrite(h8, dat[7][0]);
    	delay(1); //延时一小段时间，等待LED被点亮
    	clear();  //清空显示去除余晖
    	digitalWrite(l2, LOW);             //选通第二列
    	digitalWrite(h1, dat[0][1]);
    	digitalWrite(h2, dat[1][1]);
    	digitalWrite(h3, dat[2][1]);
    	digitalWrite(h4, dat[3][1]);
    	digitalWrite(h5, dat[4][1]);
    	digitalWrite(h6, dat[5][1]);
    	digitalWrite(h7, dat[6][1]);
    	digitalWrite(h8, dat[7][1]);
    	delay(1);
    	clear();
    	digitalWrite(l3, LOW);             //选通第三列
    	digitalWrite(h1, dat[0][2]);
    	digitalWrite(h2, dat[1][2]);
    	digitalWrite(h3, dat[2][2]);
    	digitalWrite(h4, dat[3][2]);
    	digitalWrite(h5, dat[4][2]);
    	digitalWrite(h6, dat[5][2]);
    	digitalWrite(h7, dat[6][2]);
    	digitalWrite(h8, dat[7][2]);
    	delay(1);
    	clear();
    	digitalWrite(l4, LOW);             //选通第四列
    	digitalWrite(h1, dat[0][3]);
    	digitalWrite(h2, dat[1][3]);
    	digitalWrite(h3, dat[2][3]);
    	digitalWrite(h4, dat[3][3]);
    	digitalWrite(h5, dat[4][3]);
    	digitalWrite(h6, dat[5][3]);
    	digitalWrite(h7, dat[6][3]);
    	digitalWrite(h8, dat[7][3]);
    	delay(1);
    	clear();
    	digitalWrite(l5, LOW);             //选通第五列
    	digitalWrite(h1, dat[0][4]);
    	digitalWrite(h2, dat[1][4]);
    	digitalWrite(h3, dat[2][4]);
    	digitalWrite(h4, dat[3][4]);
    	digitalWrite(h5, dat[4][4]);
    	digitalWrite(h6, dat[5][4]);
    	digitalWrite(h7, dat[6][4]);
    	digitalWrite(h8, dat[7][4]);
    	delay(1);
    	clear();
    	digitalWrite(l6, LOW);             //选通第六列
    	digitalWrite(h1, dat[0][5]);
    	digitalWrite(h2, dat[1][5]);
    	digitalWrite(h3, dat[2][5]);
    	digitalWrite(h4, dat[3][5]);
    	digitalWrite(h5, dat[4][5]);
    	digitalWrite(h6, dat[5][5]);
    	digitalWrite(h7, dat[6][5]);
    	digitalWrite(h8, dat[7][5]);
    	delay(1);
    	clear();
    	digitalWrite(l7, LOW);             //选通第七列
    	digitalWrite(h1, dat[0][6]);
    	digitalWrite(h2, dat[1][6]);
    	digitalWrite(h3, dat[2][6]);
    	digitalWrite(h4, dat[3][6]);
    	digitalWrite(h5, dat[4][6]);
    	digitalWrite(h6, dat[5][6]);
    	digitalWrite(h7, dat[6][6]);
    	digitalWrite(h8, dat[7][6]);
    	delay(1);
    	clear();
    	digitalWrite(l8, LOW);             //选通第八列
    	digitalWrite(h1, dat[0][7]);
    	digitalWrite(h2, dat[1][7]);
    	digitalWrite(h3, dat[2][7]);
    	digitalWrite(h4, dat[3][7]);
    	digitalWrite(h5, dat[4][7]);
    	digitalWrite(h6, dat[5][7]);
    	digitalWrite(h7, dat[6][7]);
    	digitalWrite(h8, dat[7][7]);
    	delay(1);
    	clear();
    }
    void clear() { 
    	digitalWrite(h1, LOW);
    	digitalWrite(h2, LOW);
    	digitalWrite(h3, LOW);
    	digitalWrite(h4, LOW);
    	digitalWrite(h5, LOW);
    	digitalWrite(h6, LOW);
    	digitalWrite(h7, LOW);
    	digitalWrite(h8, LOW);
    	digitalWrite(l1, HIGH);
    	digitalWrite(l2, HIGH);
    	digitalWrite(l3, HIGH);
    	digitalWrite(l4, HIGH);
    	digitalWrite(l5, HIGH);
    	digitalWrite(l6, HIGH);
    	digitalWrite(l7, HIGH);
    	digitalWrite(l8, HIGH);
    }
    void loop()
    { 
    	//显示第一副图
    	for (int i = 0; i < 100; i++) { 
    		display(table1);
    	}
    	//显示第二幅图
    	for (int i = 0; i < 50; i++) { 
    		display(table2);
    	}
    }

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