#include <SimpleTimer.h>

SimpleTimer timer;

int outPin = 9;  // output pin (relay)
int inPin = 8;   // choose the input pin (for a pushbutton)
int outVal = LOW;
int val = 0;     // variable for reading the pin status
int prevVal = 0;

long TIMEOUT = 60000UL; // 1 minute
//long TIMEOUT = 420000UL; // 7 minutes

void turnOn() {
  outVal = HIGH;
  digitalWrite(outPin, outVal);
}

void turnOff() {
  outVal = LOW;
  digitalWrite(outPin, outVal);
}

bool alreadyOn() {
  return outVal == HIGH;
}

void setup() {
  pinMode(outPin, OUTPUT);
  pinMode(inPin, INPUT);
  turnOff();
}

void loop() {
  prevVal = val;
  val = digitalRead(inPin);
  if (val == LOW && prevVal == HIGH) {
    if (alreadyOn()) {
      turnOff();
    } else {
      turnOn();
      timer.setTimeout(TIMEOUT, turnOff);
    }
  }
  timer.run();
}