#include

#define ON 1
#define OFF 0

/*
* Pin Description
*/
int vibration_Sensor = A5;
int LED = 13;

/*
* Programme flow Description
*/
int present_condition = 0;
int previous_condition = 0;

/*
* Pin mode setup
*/
void setup() {
pinMode(vibration_Sensor, INPUT);
pinMode(LED, OUTPUT);
}

/*
* Led blink
*/
void led_blink(void);

/*
* main_loop
*/

void loop() {
previous_condition = present_condition;
present_condition = digitalRead(A5); // Reading digital data from the A5 Pin of the Arduino.

if (previous_condition != present_condition) {
led_blink();

} else {
digitalWrite(LED, OFF);
}
}

void led_blink(void) {
digitalWrite(LED, ON);
delay(250);
digitalWrite(LED, OFF);
delay(250);
digitalWrite(LED, ON);
delay(250);
digitalWrite(LED, OFF);
delay(250);
}