// Program to distinquish between a short button press and a long button press.
// A long press is one where you press for more than 700 millisecond.
const int pushButton = 7;
int led = 13;

bool longPress(int wait=700) {
  while (!digitalRead(pushButton)) delay(10);  // wait for press
  unsigned long endTime=millis()+wait;
  while (digitalRead(pushButton))  delay(10); // wait for release
  if (millis() > endTime) return true;
  else return false;
}

void setup() {
  Serial.begin(115200);
  pinMode(pushButton, OUTPUT);  // active HIGH
  pinMode(led, OUTPUT);
}

void loop() {
  if (longPress()) {
    Serial.println("long pressed");
  } else {
    Serial.println("short pressed");
  }

}