A059.ino

/* Example By ArduinoAll
 *ต่อขา Module -> arduino
  1-> Pin 2
  2-> Pin 3
  3-> Pin 4
  4-> Pin 5
  Vcc->5V
  GND->GND 
*/

int buttonPin2 = 2;
int buttonState2 = 0;
int buttonPin3 = 3;
int buttonState3 = 0;
int buttonPin4 = 4;
int buttonState4 = 0;
int buttonPin5 = 5;
int buttonState5 = 0;

void setup() {
  Serial.begin(9600);
  pinMode(buttonPin2, INPUT);
  pinMode(buttonPin3, INPUT);
  pinMode(buttonPin4, INPUT);
  pinMode(buttonPin5, INPUT);

}

void loop() {
  buttonState2 = digitalRead(buttonPin2);
  buttonState3 = digitalRead(buttonPin3);
  buttonState4 = digitalRead(buttonPin4);
  buttonState5 = digitalRead(buttonPin5);

  if (buttonState2 == HIGH) {
    Serial.println("Touch 1");
  }
  if (buttonState3 == HIGH) {
    Serial.println("Touch 2");
  }
  if (buttonState4 == HIGH) {
    Serial.println("Touch 3");
  }
  if (buttonState5 == HIGH) {
    Serial.println("Touch 4");
  }
  delay(100);
}