Arduino Tilt Sensor Tutorial | Interfacing Tilt Ball Switch Sensor With Arduino

Connect everything According to as shown in the image and then we will be ready to upload th code.

Now we come to coding part open your arduino ide and copy the following code & upload it to arduino uno :
Code :-

int ledPin = 12;
int sensorPin = 4;
int sensorValue;
int lastTiltState = HIGH; // the previous reading from the tilt sensor

// the following variables are long's because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long lastDebounceTime = 0; // the last time the output pin was toggled
long debounceDelay = 50; // the debounce time; increase if the output flickers

void setup(){
pinMode(sensorPin, INPUT);
digitalWrite(sensorPin, HIGH);
pinMode(ledPin, OUTPUT);
Serial.begin(9600);
}

void loop(){
sensorValue = digitalRead(sensorPin);
// If the switch changed, due to noise or pressing:
if (sensorValue == lastTiltState) {
// reset the debouncing timer
lastDebounceTime = millis();
}
if ((millis() - lastDebounceTime) > debounceDelay) {
// whatever the reading is at, it's been there for longer
// than the debounce delay, so take it as the actual current state:
lastTiltState = sensorValue;
}
digitalWrite(ledPin, lastTiltState);

Serial.println(sensorValue);
delay(500);
}