#define buttonHigher 2                    // Increase cycle time
#define buttonLower 3                     // Decrease  cycle time
#define start 4                           // Start cycle
#define stop 5                            // Start cycle
#define motor 13                          // Motor port
unsigned long runCycle = 0;               // Cycle time
unsigned long onTime = 60000UL * 10UL;    // 10 minutes
unsigned long oneMinute = 60000UL;        // 1minute
bool startFlag = false;                   // Cycle control
//-------------------------------------------------------------------
void setup() {
  Serial.begin(115200);                   // init Serial;
  pinMode(buttonHigher, INPUT_PULLUP);    // Port INPUT with pullup resistor
  pinMode(buttonLower, INPUT_PULLUP);     // Port INPUT with pullup resistor
  pinMode(start, INPUT_PULLUP);           // Port INPUT with pullup resistor
  pinMode(stop, INPUT_PULLUP);            // Port INPUT with pullup resistor
  pinMode(motor, OUTPUT);                 // Port OUTPUT
}
//-------------------------------------------------------------------
void loop() {
  if (digitalRead(buttonHigher) == LOW)   // Verify if is to increase
  {
    delay(40);                            // Debouncing
    if (digitalRead(buttonHigher) == LOW) // Confirme increase
    {
      onTime += oneMinute;                // Increase cycle time
      Serial.println(onTime / 60000UL);   // Show cycle time in minutes
    }
    while (digitalRead(buttonHigher) == LOW) {} // Wait release button
  }
  if (digitalRead(buttonLower) == LOW)   // Verify if is to decrease
  {
    delay(40);                           // Debouncing
    if (digitalRead(buttonLower) == LOW) // Confirme decrease
    {
      onTime -= oneMinute;               // Dencrease cycle time
      if (onTime < 1)                    // If cycle time 0
        onTime = 60000UL;                // cycle time  = 60000 (1 minute)
      Serial.println(onTime / 60000UL);  // Show cycle time in minutes
    }
    while (digitalRead(buttonLower) == LOW) {} // Wait release button
  }
  if (digitalRead(start) == LOW)         // Start cycle
  {
    delay(40);                           // Debouncing
    if (digitalRead(start) == LOW)       // Confirm Start cycle
    {
      digitalWrite(motor, HIGH);         // Turn on motor
      startFlag = true;                  // Indicate started
      runCycle = millis();               // Charge time control
    }
  }
  while ( startFlag == true)             // While in time
  {
    if ((millis() - runCycle) % 1000 == 0)  // Print at each second
      Serial.println((millis() - runCycle)/1000);
    if (millis() - runCycle >= onTime)   // Verifiy if time is over
    {
      digitalWrite(motor, LOW);          // Turn off motor
      startFlag = false;                 // Indicate stoped
    }
    if (digitalRead(stop) == LOW)        // Stop cycle
    {
      delay(40);                         // Debouncing
      if (digitalRead(stop) == LOW)      // Confirm stop
      {
        digitalWrite(motor, LOW);        // Turn off motor
        startFlag = false;               // Indicate stoped
      }
    }
  }

}