[Arduino] 7 - Segment

Arduino Pin	7 Segment Pin Connection
2	7(A)
3	6(B)
4	4(C)
5	2(D)
6	1(E)
7	9(F)
8	10(G)
9	5(DP)

void setup() {                  pinMode(2, OUTPUT);     pinMode(3, OUTPUT);   pinMode(4, OUTPUT);   pinMode(5, OUTPUT);   pinMode(6, OUTPUT);   pinMode(7, OUTPUT);   pinMode(8, OUTPUT);   pinMode(9, OUTPUT);   digitalWrite(9, 0);  // start with the "dot" off } void loop() {  // write '9'  digitalWrite(2, 1);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 0);  digitalWrite(6, 0);  digitalWrite(7, 1);  digitalWrite(8, 1);  delay(1000);  // write '8'  digitalWrite(2, 1);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 1);  digitalWrite(6, 1);  digitalWrite(7, 1);  digitalWrite(8, 1);  delay(1000);  // write '7'  digitalWrite(2, 1);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 0);  digitalWrite(6, 0);  digitalWrite(7, 0);  digitalWrite(8, 0);  delay(1000);  // write '6'  digitalWrite(2, 1);  digitalWrite(3, 0);  digitalWrite(4, 1);  digitalWrite(5, 1);  digitalWrite(6, 1);  digitalWrite(7, 1);  digitalWrite(8, 1);  delay(1000);  // write '5'  digitalWrite(2, 1);  digitalWrite(3, 0);  digitalWrite(4, 1);  digitalWrite(5, 1);  digitalWrite(6, 0);  digitalWrite(7, 1);  digitalWrite(8, 1);  delay(1000);  // write '4'  digitalWrite(2, 0);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 0);  digitalWrite(6, 0);  digitalWrite(7, 1);  digitalWrite(8, 1);  delay(1000);  // write '3'  digitalWrite(2, 1);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 1);  digitalWrite(6, 0);  digitalWrite(7, 0);  digitalWrite(8, 1);  delay(1000);  // write '2'  digitalWrite(2, 1);  digitalWrite(3, 1);  digitalWrite(4, 0);  digitalWrite(5, 1);  digitalWrite(6, 1);  digitalWrite(7, 0);  digitalWrite(8, 1);  delay(1000);  // write '1'  digitalWrite(2, 0);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 0);  digitalWrite(6, 0);  digitalWrite(7, 0);  digitalWrite(8, 0);  delay(1000);  // write '0'  digitalWrite(2, 1);  digitalWrite(3, 1);  digitalWrite(4, 1);  digitalWrite(5, 1);  digitalWrite(6, 1);  digitalWrite(7, 1);  digitalWrite(8, 0);  delay(4000); }

byte seven_seg_digits[10][7] = { { 1,1,1,1,1,1,0 },  // = 0                                                            { 0,1,1,0,0,0,0 },  // = 1                                                            { 1,1,0,1,1,0,1 },  // = 2                                                            { 1,1,1,1,0,0,1 },  // = 3                                                            { 0,1,1,0,0,1,1 },  // = 4                                                            { 1,0,1,1,0,1,1 },  // = 5                                                            { 1,0,1,1,1,1,1 },  // = 6                                                            { 1,1,1,0,0,0,0 },  // = 7                                                            { 1,1,1,1,1,1,1 },  // = 8                                                            { 1,1,1,0,0,1,1 }   // = 9                                                            }; void setup() {                   pinMode(2, OUTPUT);      pinMode(3, OUTPUT);   pinMode(4, OUTPUT);   pinMode(5, OUTPUT);   pinMode(6, OUTPUT);   pinMode(7, OUTPUT);   pinMode(8, OUTPUT);   pinMode(9, OUTPUT);   writeDot(0);  // start with the "dot" off } void writeDot(byte dot) {   digitalWrite(9, dot); }      void sevenSegWrite(byte digit) {   byte pin = 2;   for (byte segCount = 0; segCount < 7; ++segCount) {     digitalWrite(pin, seven_seg_digits[digit][segCount]);     ++pin;   } } void loop() {   for (byte count = 10; count > 0; --count) {    delay(1000);    sevenSegWrite(count - 1);    }   delay(4000); }

주의

반대일 수도 있음

byte seven_seg_digits[10][7] = { { 0,0,0,0,0,0,1 },  // = 0

                                 { 1,0,0,1,1,1,1 },  // = 1

                                { 0,0,1,0,0,1,0 },  // = 2

                                { 0,0,0,0,1,1,0 },  // = 3

                                 { 1,0,0,1,1,0,0 },  // = 4

                                 { 0,1,0,0,1,0,0 },  // = 5

                                 { 0,1,0,0,0,0,0 },  // = 6

                                 { 0,0,0,1,1,1,1 },  // = 7

                                 { 0,0,0,0,0,0,0 },  // = 8

                                 { 0,0,0,1,1,0,0 }   // = 9

 };