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- //2 Digit Arduino Counter
- #define A A4
- #define B 13
- #define C 10
- #define D 9
- #define E 8
- #define F A1
- #define G 11
- // Pins driving common anodes
- #define CA1 12
- #define CA2 A3
- // Pins for A B C D E F G, in sequence
- const int segs[7] = {A4, 13, 10, 9, 8, A1, 11};
- // Segments that make each number
- const byte numbers[10] = { 0b1000000, 0b1111001, 0b0100100, 0b0110000, 0b0011001, 0b0010010, 0b0000010, 0b1111000, 0b0000000, 0b0010000};
- void setup() {
- pinMode(A4, OUTPUT);
- pinMode(13, OUTPUT);
- pinMode(10, OUTPUT);
- pinMode(9, OUTPUT);
- pinMode(8, OUTPUT);
- pinMode(A1, OUTPUT);
- pinMode(11, OUTPUT);
- pinMode(12, OUTPUT);
- pinMode(A3, OUTPUT);
- }
- void loop() {
- for (int digit1=0; digit1 < 10; digit1++) {
- for (int digit2=0; digit2 < 10; digit2++) {
- unsigned long startTime = millis();
- for (unsigned long elapsed=0; elapsed < 600; elapsed = millis() - startTime) {
- lightDigit1(numbers[digit1]);
- delay(5);
- lightDigit2(numbers[digit2]);
- delay(5);
- }
- }
- }
- }
- void lightDigit1(byte number) {
- digitalWrite(CA1, LOW);
- digitalWrite(CA2, HIGH);
- lightSegments(number);
- }
- void lightDigit2(byte number) {
- digitalWrite(CA1, HIGH);
- digitalWrite(CA2, LOW);
- lightSegments(number);
- }
- void lightSegments(byte number) {
- for (int i = 0; i < 7; i++) {
- int bit = bitRead(number, i);
- digitalWrite(segs[i], bit);
- }
- }
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