#include <Wire.h>
#include "RTClib.h"
RTC_DS1307 rtc;
#define RTCI2C_SDA 33
#define RTCI2C_SCL 32
int Numbers[10]{0b01111110,
0b00010010,
0b10111100,
0b10110110,
0b11010010,
0b11100110,
0b11101110,
0b00110010,
0b11111110,
0b11110110};
void setup(void) {
Serial.begin(115200);
pinMode(25, OUTPUT);
pinMode(26, OUTPUT);
pinMode(27, OUTPUT);
Wire.begin(RTCI2C_SDA, RTCI2C_SCL);
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
Serial.flush();
abort();
}
}
void loop() {
DateTime now = rtc.now();
int nowsec = now.second() / 10;
int nowsec1 = now.second() % 10;
int nowmin = now.minute() / 10;
int nowmin1 = now.minute() % 10;
int nowh = now.hour() / 10;
int nowh1 = now.hour() % 10;
digitalWrite(26, LOW);
shiftOut(25, 27, LSBFIRST, Numbers[nowsec1]);
shiftOut(25, 27, LSBFIRST, Numbers[nowsec]);
shiftOut(25, 27, LSBFIRST, Numbers[nowmin1]);
shiftOut(25, 27, LSBFIRST, Numbers[nowmin]);
shiftOut(25, 27, LSBFIRST, Numbers[nowh1]);
shiftOut(25, 27, LSBFIRST, Numbers[nowh]);
digitalWrite(26, HIGH);
delay(1000);
}