twobuttonstimer/twobuttonstimer.ino

/*
 *  based on:
 * TimeRTC.pde
 * example code illustrating Time library with Real Time Clock.
 * 
 */

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

int led = 13;
int indicator = 0;

void setup()  {
  pinMode(8, OUTPUT);
  pinMode(9, 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 indicate that time is not set or RTC is not plugged
    int i;
    for (i = 1; i <= 50; i++)
    {
      digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
      delay(50);               // wait for a second
      digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
      delay(50);               // wait for a second
    }
  }
  delay(1000);
}

void checkTime(){
  if ((hour()==6 || hour()==7 ) && (indicator==0)) {
    pressSTART();
  }
  if ((hour()==8) && (minute()==1)) {
    pressSTOP();
  }
  if ((hour()==12 || hour()==13 ) && (indicator==0)) {
    pressSTART();
  }
  if ((hour()==14) && (minute()==1)) {
    pressSTOP();
  }
  if ((hour()==17) && (indicator==0)) {
    pressSTART();
  }
  if ((hour()==18) && (minute()==25)) {
    pressSTOP();
  }
}

void pressSTOP(){
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  indicator = 0;
  digitalWrite(8, HIGH);
  delay(500);
  digitalWrite(8, LOW);
  delay(61000);  
}

void pressSTART(){
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  indicator = 1;
  digitalWrite(9, HIGH);
  delay(500);
  digitalWrite(9, LOW);
  delay(61000);
}