Button Checker

Check the value of a button.

Dec 11, 2022

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button

data collection

Devices & Components

Arduino Uno Rev3

Push button

I2C LCD

Resistor 1k ohm

Jumper wires (generic)

Breadboard (generic)

Software & Tools

Windows 10

Arduino IDE

Project description

Code

Codes

c_cpp

Arduino IDE code

1#include <Wire.h> 
2#include <LiquidCrystal_I2C.h>
3LiquidCrystal_I2C  lcd(0x27,16,2);  //sometimes the LCD adress is not 0x27. Change to 0x3f if it doesn't  work.
4
5void setup() {
6  lcd.init();                 //Init the LCD
7  lcd.backlight();            //Activate backlight     
8
9  lcd.print("BUTTON");        //Intro   
10  lcd.setCursor(0, 1);
11  lcd.print("CHECK");
12  delay(3000);    
13}
14
15void loop() {
16  lcd.clear();
17  lcd.print("VALUE:");      
18  lcd.print(digitalRead(4));  //The value of the button
19  delay(300);  
20}

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C  lcd(0x27,16,2);  //sometimes the LCD adress is not 0x27. Change to 0x3f if it doesn't  work.

void setup() {
  lcd.init();                 //Init the LCD
  lcd.backlight();            //Activate backlight     

  lcd.print("BUTTON");        //Intro   
  lcd.setCursor(0, 1);
  lcd.print("CHECK");
  delay(3000);    
}

void loop() {
  lcd.clear();
  lcd.print("VALUE:");      
  lcd.print(digitalRead(4));  //The value of the button
  delay(300);  
}

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bby256

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