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- //3 Digit Arduino Binary Counter
- //Counter 1-999
- #define A 2
- #define B 3
- #define C 4
- #define D 5
- // Pins driving common anodes
- #define CA1 6
- #define CA2 7
- #define CA3 8
- // Pins for A, B, C, D in sequence
- const int segs[4] = {2, 3, 4, 5};
- // Segments that make each number
- const byte numbers[10] = {0b1111, 0b1110, 0B1101, 0b1100, 0b1011, 0b1010, 0b1001, 0b1000, 0b0111, 0b0110};
- void setup() {
- pinMode(2, OUTPUT);
- pinMode(3, OUTPUT);
- pinMode(4, OUTPUT);
- pinMode(5, OUTPUT);
- pinMode(6, OUTPUT);
- pinMode(7, OUTPUT);
- pinMode(8, OUTPUT);
- }
- void loop() {
- for (int digit1=0; digit1 < 10; digit1++) {
- for (int digit2=0; digit2 < 10; digit2++) {
- for(int digit3=0; digit3 < 10; digit3++) {
- unsigned long startTime = millis();
- for (unsigned long elapsed=0; elapsed < 600; elapsed = millis() - startTime) {
- lightDigit1(numbers[digit1]);
- delay(5);
- lightDigit2(numbers[digit2]);
- delay(5);
- lightDigit3(numbers[digit3]);
- delay(5);
- }
- }
- }
- }
- }
- void lightDigit1(byte number) {
- digitalWrite(CA1, LOW);
- digitalWrite(CA2, LOW);
- digitalWrite(CA3, HIGH);
- lightSegments(number);
- }
- void lightDigit2(byte number) {
- digitalWrite(CA1, LOW);
- digitalWrite(CA2, HIGH);
- digitalWrite(CA3, LOW);
- lightSegments(number);
- }
- void lightDigit3(byte number) {
- digitalWrite(CA1, HIGH);
- digitalWrite(CA2, LOW);
- digitalWrite(CA3, LOW);
- lightSegments(number);
- }
- void lightSegments(byte number) {
- for (int i = 0; i < 4; i++) {
- int bit = bitRead(number, i);
- digitalWrite(segs[i], bit);
- }
- }
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