Arduino – Clock Board – time
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int digit[4]={11, 8, 7, A2}; int leds[]={10, 6, 2, 4, 5, 9, A0, 3}; // a, b, c, d, e, f, g, Dp byte numbers[10][8]={ {1, 1, 1, 1, 1, 1, 0, 0}, // 0 {0, 1, 1, 0, 0, 0, 0, 0}, // 1 {1, 1, 0, 1, 1, 0, 1, 0}, // 2 {1, 1, 1, 1, 0, 0, 1, 0}, // 3 {0, 1, 1, 0, 0, 1, 1, 0}, // 4 {1, 0, 1, 1, 0, 1, 1, 0}, // 5 {1, 0, 1, 1, 1, 1, 1, 0}, // 6 {1, 1, 1, 0, 0, 0, 0, 0}, // 7 {1, 1, 1, 1, 1, 1, 1, 0}, // 8 {1, 1, 1, 1, 0, 1, 1, 0} // 9 }; unsigned long now=0; int number100 = 0; int number10 = 0; int number1 = 0; int number0 = 0; void setup() { for (int i=0;i<4;i++) { pinMode(digit[i], OUTPUT); } for (int i=0;i<8;i++) { pinMode(leds[i], OUTPUT); } } void loop() { now = millis() / 10; number0 = now % 10; number1 = (now % 100) / 10; number10 = (now % 1000) / 100; number100 = (now % 10000) / 1000; displayNumber(1, number100); displayNumber(2, number10); displayNumber(3, number1); displayNumber(4, number0); } void displayNumber(byte p, char n) { for (int i=0;i<4;i++) { if (p==i+1) { digitalWrite(digit[i], LOW); } else { digitalWrite(digit[i], HIGH); } } for (int i=0;i<8;i++) { digitalWrite(leds[i], numbers[n][i]); } displayOff(); } void displayOff() { for (int i=0;i<8;i++) { digitalWrite(leds[i], LOW); } delayMicroseconds(50); } |