/* Display 4-digit numbers on a 5643S Dixie LED tube * copyright Yilun Yu * tutorial: http://osoyoo.com/?p=222 */ int a = 1; int b = 2; int c = 3; int d = 4; int e = 5; int f = 6; int g = 7; int p = 8; int d4 = 9; int d3 = 10; int d2 = 11; int d1 = 12; int x = 100; long del = 600; int interval=50000; void setup() { pinMode(d1, OUTPUT); pinMode(d2, OUTPUT); pinMode(d3, OUTPUT); pinMode(d4, OUTPUT); pinMode(a, OUTPUT); pinMode(b, OUTPUT); pinMode(c, OUTPUT); pinMode(d, OUTPUT); pinMode(e, OUTPUT); pinMode(f, OUTPUT); pinMode(g, OUTPUT); pinMode(p, OUTPUT); } void loop() { long i; for (i=0;i<1000000;i++) { showNum(i); } } void showNum(long n) { clearLEDs(); pickDigit(1); pickNumber((n/x/1000)%10); delayMicroseconds(del); clearLEDs(); pickDigit(2); pickNumber((n/x/100)%10); delayMicroseconds(del); clearLEDs(); pickDigit(3); dispDec(3); pickNumber((n/x/10)%10); delayMicroseconds(del); clearLEDs(); pickDigit(4); pickNumber(n/x%10); delayMicroseconds(del); n++; if (digitalRead(13) == HIGH) { n = 0; } } void pickDigit(int x) { digitalWrite(d1, HIGH); digitalWrite(d2, HIGH); digitalWrite(d3, HIGH); digitalWrite(d4, HIGH); switch(x) { case 1: digitalWrite(d1, LOW); break; case 2: digitalWrite(d2, LOW); break; case 3: digitalWrite(d3, LOW); break; default: digitalWrite(d4, LOW); break; } } void pickNumber(int x) { switch(x) { default: zero(); break; case 1: one(); break; case 2: two(); break; case 3: three(); break; case 4: four(); break; case 5: five(); break; case 6: six(); break; case 7: seven(); break; case 8: eight(); break; case 9: nine(); break; } } void dispDec(int x) { digitalWrite(p, HIGH); } void clearLEDs() { digitalWrite(a, LOW); digitalWrite(b, LOW); digitalWrite(c, LOW); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, LOW); digitalWrite(p, LOW); } void zero() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, HIGH); digitalWrite(g, LOW); } void one() { digitalWrite(a, LOW); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, LOW); } void two() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, LOW); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, LOW); digitalWrite(g, HIGH); } void three() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, HIGH); } void four() { digitalWrite(a, LOW); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void five() { digitalWrite(a, HIGH); digitalWrite(b, LOW); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, LOW); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void six() { digitalWrite(a, HIGH); digitalWrite(b, LOW); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void seven() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, LOW); } void eight() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void nine() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, LOW); digitalWrite(f, HIGH); digitalWrite(g, HIGH); }