Arduino 数码管LED驱动数组法

来源：互联网发布：淘宝男士短袖编辑：程序博客网时间：2024/05/05 17:05

上个例子讲到驱动LED数码管，采用一种最直接的方案，对每个LED进行高低电平的控制，这样的优点是每个LED都是受控可检的，避免了由于短路造成的假象，但对于数字变化来说，写起来就非常冗余，因此这次尝试用数组的方法实现。

//设置阴极接口int d1 = 1;int d2 = 2;int d3 = 3;int d4 = 4;int d5 = 5;int d6 = 6;int d7 = 7;//设置阳极接口int a = 8;int b = 9;int c = 10;int d = 11;int e = 12;int f = 13;int g = A0;int h = A1;byte gyang[8] = { a, b, c, d, e, f, g, h };byte gyin[7] = { d1, d2, d3, d4, d5, d6, d7 }; byte gong_yang[14][8] = {                           { 1,1,0,0,0,0,0,0 },  // 0 = 缺水                          { 0,0,1,1,0,0,0,0 },  // 1 = 低水位                          { 0,0,0,0,1,1,1,0 },  // 2 = 定时关机                          { 1,1,1,1,1,1,0,0 },  // 3 = 0                          { 0,1,1,0,0,0,0,0 },  // 4 = 1                          { 1,1,0,1,1,0,1,0 },  // 5 = 2                          { 1,1,1,1,0,0,1,0 },  // 6 = 3                          { 0,1,1,0,0,1,1,0 },  // 7 = 4                          { 1,0,1,1,0,1,1,0 },  // 8 = 5                          { 1,0,1,1,1,1,1,0 },  // 9 = 6                          { 1,1,1,0,0,0,0,0 },  // 10 = 7                          { 1,1,1,1,1,1,1,0 },  // 11 = 8                          { 1,1,1,1,0,1,1,0 },  // 12 = 9                          { 0,0,0,0,0,0,0,1 },  // 13 = 摄氏度符号、睡眠符号                        };                         byte gong_yin[5][7] = {                           { 1,1,1,1,1,1,0 },  // 0 = 缺水、低水位、定时关机                          { 0,1,1,1,1,1,1 },  // 1 = 温度十位、摄氏度符号                          { 1,0,1,1,1,1,1 },  // 2 = 温度个位、睡眠符号                          { 0,0,1,1,1,1,1 },  // 3 = 温度个和十位                          { 1,1,0,0,0,0,1 },  // 4 = 时钟个、十位和两点                        }; void setup(){pinMode(d1, OUTPUT);pinMode(d2, OUTPUT);pinMode(d3, OUTPUT);pinMode(d4, OUTPUT);pinMode(d5, OUTPUT);pinMode(d6, OUTPUT);pinMode(d7, OUTPUT);pinMode(a, OUTPUT);pinMode(b, OUTPUT);pinMode(c, OUTPUT);pinMode(d, OUTPUT);pinMode(e, OUTPUT);pinMode(f, OUTPUT);pinMode(g, OUTPUT);pinMode(h, OUTPUT);digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(h, LOW);digitalWrite(d1, HIGH);digitalWrite(d2, HIGH);digitalWrite(d3, HIGH);digitalWrite(d4, HIGH);digitalWrite(d5, HIGH);digitalWrite(d6, HIGH);digitalWrite(d7, HIGH);}void loop(){  GongYang(0);  GongYin(0);  delay(300);  GongYang(1);  delay(300);  GongYang(2);  delay(300);  GongYin(3);  GongYang(3);  delay(300);  GongYang(4);  delay(300);  GongYang(5);  delay(300);  GongYang(6);  delay(300);  GongYang(7);  delay(300);  GongYang(8);  delay(300);  GongYang(9);  delay(300);  GongYang(10);  delay(300);  GongYang(11);  delay(300);  GongYang(12);  delay(300);  GongYang(13);  GongYin(1);  delay(300);  GongYin(2);  delay(300);  GongYin(4);  GongYang(3);  delay(300);  GongYang(4);  delay(300);  GongYang(5);  delay(300);  GongYang(6);  delay(300);  GongYang(7);  delay(300);  GongYang(8);  delay(300);  GongYang(9);  delay(300);  GongYang(10);  delay(300);  GongYang(11);  delay(300);  GongYang(12);  delay(300);}void GongYang(int x){  for (int i = 0; i < 8; i++)   {    digitalWrite(gyang[i], gong_yang[x][i]);  }}void GongYin(int y){  for (int i = 0; i < 7; i++)   {    digitalWrite(gyin[i], gong_yin[y][i]);  }}

SETUP语句和LOOP语句还有很多冗余的代码，用for循环优化代码。

//设置阴极接口int d1 = 1;int d2 = 2;int d3 = 3;int d4 = 4;int d5 = 5;int d6 = 6;int d7 = 7;//设置阳极接口int a = 8;int b = 9;int c = 10;int d = 11;int e = 12;int f = 13;int g = A0;int h = A1;byte gyang[8] = { a, b, c, d, e, f, g, h };byte gyin[7] = { d1, d2, d3, d4, d5, d6, d7 }; byte gong_yang[14][8] = {                           { 1,1,0,0,0,0,0,0 },  // 0 = 缺水                          { 0,0,1,1,0,0,0,0 },  // 1 = 低水位                          { 0,0,0,0,1,1,1,0 },  // 2 = 定时关机                          { 1,1,1,1,1,1,0,0 },  // 3 = 0                          { 0,1,1,0,0,0,0,0 },  // 4 = 1                          { 1,1,0,1,1,0,1,0 },  // 5 = 2                          { 1,1,1,1,0,0,1,0 },  // 6 = 3                          { 0,1,1,0,0,1,1,0 },  // 7 = 4                          { 1,0,1,1,0,1,1,0 },  // 8 = 5                          { 1,0,1,1,1,1,1,0 },  // 9 = 6                          { 1,1,1,0,0,0,0,0 },  // 10 = 7                          { 1,1,1,1,1,1,1,0 },  // 11 = 8                          { 1,1,1,1,0,1,1,0 },  // 12 = 9                          { 0,0,0,0,0,0,0,1 },  // 13 = 摄氏度符号、睡眠符号                        };                         byte gong_yin[5][7] = {                           { 1,1,1,1,1,1,0 },  // 0 = 缺水、低水位、定时关机                          { 0,1,1,1,1,1,1 },  // 1 = 温度十位、摄氏度符号                          { 1,0,1,1,1,1,1 },  // 2 = 温度个位、睡眠符号                          { 0,0,1,1,1,1,1 },  // 3 = 温度个和十位                          { 1,1,0,0,0,0,1 },  // 4 = 时钟个、十位和两点                        }; void setup(){  pinMode(A0, OUTPUT);  pinMode(A1, OUTPUT);  for(int i=1; i<14;i++)  {    pinMode(i,OUTPUT);  }}void loop(){  GongYin(0);  for(int i=0; i<3; i++)  {    GongYang(i);    delay(300);  }  GongYin(3);  for(int i=3; i<13; i++)  {    GongYang(i);    delay(300);  }  GongYang(13);  GongYin(1);  delay(300);  GongYin(2);  delay(300);  GongYin(4);  for(int i=3; i<13; i++)  {    GongYang(i);    delay(300);  }}void GongYang(int x){  for (int i = 0; i < 8; i++)   {    digitalWrite(gyang[i], gong_yang[x][i]);  }}void GongYin(int y){  for (int i = 0; i < 7; i++)   {    digitalWrite(gyin[i], gong_yin[y][i]);  }}

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Arduino 数码管LED驱动 数组法

Arduino 数码管LED驱动数组法