2 Digit Seven Segment Display Module with 74HC595

2 Digit Seven Segment Display Module with 74HC595

2 Digit seven Segment 0.56 inch Red

2 IC 74hc595 driver

Size PCB : 38x25mm

Library Shift Register Klik

Contoh program

#include <ShiftRegister74HC595.h>
// create shift register object (number of shift registers, data pin, clock pin, latch pin)
ShiftRegister74HC595 sr (2, 11, 12, 8);

int number=99; // <--- Change it from 0 to 99

int value,digit1,digit2,digit3,digit4;
uint8_t numberB[] = {B11000000, //0
B11111001, //1
B10100100, //2
B10110000, //3
B10011001, //4
B10010010, //5
B10000011, //6
B11111000, //7
B10000000, //8
B10011000 //9
};

void setup() {
//Count from 0 to 'number'
countUp();
//Count from 'number' to 0
//countDown(); // <--- Comment countUp and uncomment countDown
//Blink 4 times all on and all off.
blink();
}

void loop() {

}

void countUp(){
for (int i = 0; i<=number; i++){
//Split number to digits:
digit2=i % 10 ;
digit1=(i / 10) % 10 ;
//Send them to 7 segment displays
uint8_t numberToPrint[]= {numberB[digit1],numberB[digit2]};
sr.setAll(numberToPrint);
//Reset them for next time
digit1=0;
digit2=0;
delay(1000); // Repeat every 1 sec
}
}

void countDown(){
for (number; number>=0; number--){
//Split number to digits:
digit2=number % 10 ;
digit1=(number / 10) % 10 ;
//Send them to 7 segment displays
uint8_t numberToPrint[]= {numberB[digit1],numberB[digit2]};
sr.setAll(numberToPrint);
//Reset them for next time
digit1=0;
digit2=0;
delay(1000); // Repeat every 1 sec
}
}

//Blink
void blink(){
for(int i = 0; i<4; i++){
sr.setAllLow(); // set all pins Low (off)
delay(1000);
sr.setAllHigh(); // set all pins High (on)
delay(1000);
}
}