Introduction: Most Simplest Toggle Switch With Arduino

Simple! I hope you like it! Enjoy to fool around!

Nothing more to say than in the commenting code...

Step 1: The Code

/*********************
Simple toggle switch
Created by: P.Agiakatsikas
*********************/

int button = 8;
int led = 13
int status = false;

void setup(){
pinMode(led, OUTPUT);
pinMode(button, INPUT_PULLUP); // set the internal pull up resistor, unpressed button is HIGH
}

void loop(){
//a) if the button is not pressed the false status is reversed by !status and the LED turns on
//b) if the button is pressed the true status is reveresed by !status and the LED turns off

if (digitalRead(button) == true) {
status = !status;
digitalWrite(led, status);
} while(digitalRead(button) == true);
delay(50); // keeps a small delay
}

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About This Instructable

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Bio: An Electrical Engineering Teacher in Athens Greece. Most of these small projects here, are constructed for enhancing the learning of the use of Arduino as ... More »
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