[Arduino] Tilt Sensor

 Hi,

time ago my brother give to me a set of sunfounder sensors. In this box, among different "i-don't-know-what-they-do" sensors there is a sensor with a small glass in with inside there is a small mercury ball.

Looking on google seems that this sensor is a "Tilt Switch" that should recognize when is upside-down.

Ok, do something with it....

Today we will do a VERY VERY VERY VERY usefull project using this tilt switch sensor that when is upside down it switch on a led.... (mhhh.... very very usefull)

What we need:

• Arduino Uno
• A LED
• Tilt Switch Sensor (check it on amazon)
• Some cables

The connection is this:

• Tilt Sensor GND --> Arduino GND
• Tilt Sensor VCC --> Arduino 5V
• Tilt Sensor Output PIN --> Arduino Digital Pin 2
• LED GND --> 220 ohm resistor --> Arduino GND
• LED Positive PIN --> Arduino Digital Pin 9

And this is the schema using fritzing:

this is the code:

const int tiltPin = 2;

const int LED =  9;      

int tiltState = 0;         

 

void setup() 

{

  pinMode(LED, OUTPUT);

  pinMode(tiltPin, INPUT);

}

 

void loop() 

{

  // read tilt switch value:

  tiltState = digitalRead(tiltPin);

  

  if (tiltState == HIGH) 

  {

    // turn LED on:

    digitalWrite(LED, HIGH);

  } 

  else 

  {

    // turn led off:

    digitalWrite(LED, LOW);

  }

}

and this is what we have done:

   

very very very usefull....