You've Been Using a Button Wrong this Whole Time

This tutorial will show you the easiest and best way to use a pushbutton with your Arduino board!

Jul 18, 2016

•

23337 views

•

4 respects

digital

button

switch

Components and supplies

Arduino UNO

Pushbutton switch 12mm

LED (generic)

Breadboard (generic)

Resistor 221 ohm

Jumper wires (generic)

Apps and platforms

Arduino Web Editor

Arduino IDE

Project description

Code

arduino

1const int led = 13;
2const int button = 12;
3
4void setup() {
5  // put your setup code here, to run once:
6pinMode(led, OUTPUT);
7pinMode(button,  INPUT_PULLUP);
8}
9
10void loop() {
11  // put your main code here, to run  repeatedly:
12if (digitalRead(button) == LOW) {
13  digitalWrite(led, HIGH);
14}
15if  (digitalRead(button) == HIGH) {
16  digitalWrite(led, LOW);
17}
18}
19

const int led = 13;
const int button = 12;

void setup() {
  // put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(button,  INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run  repeatedly:
if (digitalRead(button) == LOW) {
  digitalWrite(led, HIGH);
}
if  (digitalRead(button) == HIGH) {
  digitalWrite(led, LOW);
}
}

Code

arduino

1const int led = 13;
2const int button = 12;
3
4void setup() {
5
6  // put your setup code here, to run once:
7pinMode(led, OUTPUT);
8pinMode(button,
9  INPUT_PULLUP);
10}
11
12void loop() {
13  // put your main code here, to run
14  repeatedly:
15if (digitalRead(button) == LOW) {
16  digitalWrite(led, HIGH);
17}
18if
19  (digitalRead(button) == HIGH) {
20  digitalWrite(led, LOW);
21}
22}
23

const int led = 13;
const int button = 12;

void setup() {

  // put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(button,
  INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run
  repeatedly:
if (digitalRead(button) == LOW) {
  digitalWrite(led, HIGH);
}
if
  (digitalRead(button) == HIGH) {
  digitalWrite(led, LOW);
}
}

Downloadable files

Breadboard Diagram

Make the connections as shown.

Breadboard Diagram

Make the connections as shown.

Breadboard Diagram

Schematic Diagram

Comments

Only logged in users can leave comments

SMM2

0 Followers

•

0 Projects

Intro

Trademarks & CopyrightsWhistleblowingDigital Services ActTerms of ServicePrivacy PolicySecurityCookie Settings

Report content