twobuttonstimer/twobuttonstimer.ino

/*  2 relay-buttons on timer scetch
 *  [WINTER short time version]
 *  based on TimeRTC.pde
 *  Use SetTime scetch (from DS1307RTC library) for time-sync
 */

#include <TimeLib.h>
#include <Wire.h>
#include <DS1307RTC.h> // a basic DS1307 library that returns time as a time_t

int stopButton = 8;
int startButton = 9;
int led = 13;
int indicator = 0;

void setup() {
  pinMode(stopButton, OUTPUT);
  pinMode(startButton, OUTPUT);
  pinMode(led, OUTPUT);
  Serial.begin(9600);
  while (!Serial); // wait until Arduino Serial Monitor opens
  setSyncProvider(RTC.get); // the function to get the time from the RTC
  if(timeStatus()!= timeSet) 
    Serial.println("Unable to sync with the RTC");
  else
    Serial.println("RTC has set the system time");      
}

void loop() {
  if (timeStatus() == timeSet) {
    checkTime();
  } else { // fast blinking after boot indicates that time is not set or DS1307RTC is not plugged
    int i;
    for (i = 1; i <= 100; i++) {
      digitalWrite(led, LOW);
      delay(50);
      digitalWrite(led, HIGH);
      delay(50);
    }
  }
  delay(5000);
}

// Winter timing 6:00-8:01, 12:00-13:01, 17:00-18:01
void checkTime() {
  // 6:00 - 8:01 - working
  if ((hour()==6) && (indicator==0)) pressStart();
  if ((hour()==7) && (indicator==0)) pressStart();
  // 8:01 - stop
  if ((hour()==8) && (minute()==1)) pressStop();
  // 12:00 - 13:01 - working
  if ((hour()==12) && (indicator==0)) pressStart();
  // 13:01 - stop
  if ((hour()==13) && (minute()==1)) pressStop();
  // 17:00 - 18:01 - working
  if ((hour()==17) && (indicator==0)) pressStart();
  // 18:01 - stop
  if ((hour()==18) && (minute()==1)) pressStop();
}

void pressStart() {
  delay(5000);
  digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
  indicator = 1;
  digitalWrite(startButton, HIGH);
  delay(889);
  digitalWrite(startButton, LOW);
  delay(61000); // wait a minute
}

void pressStop() {
  delay(5000);
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  indicator = 0;
  digitalWrite(stopButton, HIGH);
  delay(887);
  digitalWrite(stopButton, LOW);
  delay(61000); // wait a minute
}