ARDUINO TUTORIAL FOR BEGINNERS LESSON 6: LEARN HOW TO USE TILT SWITCH

#ArduinoUno #TiltSwitch #ArduinoTiltSwitch

ARDUINO TUTORIAL FOR BEGINNERS LESSON 6: LEARN HOW TO USE TILT SWITCH

In this lesson, we are going to learn how to use a tilt switch with the use of Arduino Uno Board. This Arduino tutorial for beginners will let you learn the basic of tilt switch.

Reference: https://www.makerlab-electronics.com/

Introduction
The tilt switch used here is a ball one with a metal ball inside. It is used to detect small angle of inclination.

Components

• 1 * Arduino Uno board
• 1 * USB data cable
• 1 * Tilt switch
• Several jumper wires

Experimental Principle
The principle is very simple. When the switch is tilted in a certain angle, the ball inside rolls down and touches the two contacts connected to the pins outside, thus triggering circuits. Otherwise the ball will stay away from the contacts, thus breaking the circuits.

Experimental Procedures
Step 1: Build the circuit

The schematic diagram

Step 2: Program (Please refer to the example code)
Step 3: Compile the code
Step 4: Upload the sketch to the Arduino Uno board
Now, tilt the switch, and the LED attached to pin 13 on Arduino Uno board will light up.

Arduino Code:

//tilt switch
//tilt the switch, and the LED attached to pin 13 on SunFounder Uno board will light up.
//tilt switch attach to pin2
/*****************************************/
const int ledPin = 13;//the led attach to

void setup()
{ 
  pinMode(ledPin,OUTPUT);//initialize the ledPin as an output
  pinMode(2,INPUT);//set pin2 as INPUT
  digitalWrite(2, HIGH);//set pin2 as HIGH
} 
/******************************************/
void loop() 
{  
  int digitalVal = digitalRead(2);//Read the value of pin2
  if(HIGH == digitalVal)//if tilt switch is not breakover
  {
    digitalWrite(ledPin,LOW);//turn the led off
  }
  else ////if tilt switch breakover
  {
    digitalWrite(ledPin,HIGH);//turn the led on 
  }
}
/**********************************************/

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