Arduino 數碼管LED屏驅動
阿新 • • 發佈：2017-08-20
art 溫度 git 技術 () article 時間 ack 計劃
今天測試數碼管LED屏驅動，用某產品的一個共陰極的LED屏，依據電路圖做數碼管LED屏的檢測。
代碼寫得有些冗長。有好幾種驅動的方法，這裏僅僅是當中一種最直接的方案。抽出時間要做個更有效率的調用和驅動的方案。
//設置陰極接口
int d1 = 1;
int d2 = 2;
int d3 = 3;
int d4 = 4;
int d5 = 5;
int d6 = 6;
int d7 = 7;
//設置陽極接口
int a = 8;
int b = 9;
int c = 10;
int d = 11;
int e = 12;
int f = 13;
int g = A0;
int h = A1;
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()
{
//缺水
digitalWrite(d7, LOW);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
delay(500);
//低水位
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
delay(500);
//定時關機
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
delay(500);
//溫度十位8
digitalWrite(d7, HIGH);
digitalWrite(d1, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(a, HIGH);
delay(300);
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
delay(300);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
delay(300);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
delay(300);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
delay(300);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
delay(300);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
delay(300);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
delay(300);
//溫度個位8
digitalWrite(d1, HIGH);
digitalWrite(d2, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(a, HIGH);
delay(300);
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
delay(300);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
delay(300);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
delay(300);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
delay(300);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
delay(300);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
delay(300);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
delay(300);
//溫符號度
digitalWrite(d2, HIGH);
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(h, HIGH);
digitalWrite(d1, LOW);
delay(500);
//睡眠符號
digitalWrite(d1, HIGH);
digitalWrite(d2, LOW);
delay(500);
//小時十位8
digitalWrite(d2, HIGH);
digitalWrite(d3, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(a, HIGH);
delay(300);
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
delay(300);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
delay(300);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
delay(300);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
delay(300);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
delay(300);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
delay(300);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
delay(300);
//小時個位8
digitalWrite(d3, HIGH);
digitalWrite(d4, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(h, LOW);
digitalWrite(a, HIGH);
delay(300);
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
delay(300);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
delay(300);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
delay(300);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
delay(300);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
delay(300);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
delay(300);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
delay(300);
//冒號
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(h, HIGH);
delay(500);
//分鐘十位8
digitalWrite(d4, HIGH);
digitalWrite(d5, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(a, HIGH);
delay(300);
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
delay(300);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
delay(300);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
delay(300);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
delay(300);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
delay(300);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
delay(300);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
delay(300);
//分鐘個位8
digitalWrite(d5, HIGH);
digitalWrite(d6, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(a, HIGH);
delay(300);
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
delay(300);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
delay(300);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
delay(300);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
delay(300);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
delay(300);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
delay(300);
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
delay(300);
//全亮
digitalWrite(a, HIGH);
digitalWrite(b, HIGH);
digitalWrite(c, HIGH);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
digitalWrite(h, HIGH);
digitalWrite(d1, LOW);
digitalWrite(d2, LOW);
digitalWrite(d3, LOW);
digitalWrite(d4, LOW);
digitalWrite(d5, LOW);
digitalWrite(d6, LOW);
digitalWrite(d7, LOW);
delay(500);
//全滅
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);
delay(500);
}
計劃採用機器視覺來檢測，自己主動鑒別出斷筆。筆段亮度差異較大等質量檢驗問題。
Arduino 數碼管LED屏驅動