Jan Konečný - časové spínání

#include <stdio.h>
#include <DS1302.h>

namespace {
    const int kCePin   = 5;  // Chip Enable
    const int kIoPin   = 6;  // Input/Output
    const int kSclkPin = 7;  // Serial Clock

    DS1302 rtc(kCePin, kIoPin, kSclkPin);

    String dayAsString(const Time::Day day) {
      switch (day) {
        case Time::kSunday: return "Neděle";
        case Time::kMonday: return "Pondělí";
        case Time::kTuesday: return "Úterý";
        case Time::kWednesday: return "Středa";
        case Time::kThursday: return "Čtvrtek";
        case Time::kFriday: return "Pátek";
        case Time::kSaturday: return "Sobota";
      }
      return "(unknown day)";
    }

    void printTime() {
      Time t = rtc.time();
      const String day = dayAsString(t.day);
      char buf[50];
      snprintf(buf, sizeof(buf), "%s %02d-%02d-%04d %02d:%02d:%02d",
               day.c_str(),
               t.date, t.mon, t.yr,
               t.hr, t.min, t.sec);
      Serial.println(buf);
    }

}  // namespace

void setup() {
    Serial.begin(9600);
    pinMode(3, OUTPUT);
    rtc.writeProtect(false);
    rtc.halt(false);
    //  Time t(2020, 9, 5, 16, 29, 50, Time::kSaturday);
    // Set the time and date on the chip.
    //  rtc.time(t);
}

void loop() {
    printTime();

    // Start time - zde si zadas v kolik zapnout
    int hodinyOn=15;
    int minutyOn=8;
    // Stop time - zde si zadas v kolik vypnout
    int hodinyOff=15;
    int minutyOff=9;
    // Cas ted se nacte z RTC
    int hodinyTed=t.hr;
    int minutyTed=t.min;
    // Prevedeno na cele cislo
    int startTime = hodinyOn*60+minutyOn;
    int stopTime = hodinyOff*60+minutyOff;
    int casTed = hodinyTed*60+minutyTed;


    // Vyhodnocujeme, prvni tretina plati pro casy co nejsou pres pulnoc, dalsi 2/3 jsou pro casy co jdou pres pulnoc
    if ((startTime < stopTime && casTed > startTime && casTed < stopTime) || (startTime > stopTime && casTed > startTime) || (startTime > stopTime && casTed < stopTime))
            digitalWrite(3, HIGH );
    else
            digitalWrite(3, LOW );


//  Sepnuti led
//    if ( (t.hr == 15) && (t.min == 8) && (t.sec == 0) ) { digitalWrite(3, HIGH ); };
//  Vypnutí led
//    if ( (t.hr == 15) && (t.min == 9) && (t.sec == 0) ) { digitalWrite(3, LOW ); };
    delay(1000);
}