Button Checker

Check the value of a button.

Dec 11, 2022

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button

data collection

Components and supplies

Push button

I2C LCD

Arduino UNO

Resistor 1k ohm

Jumper wires (generic)

Breadboard (generic)

Apps and platforms

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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Schematics

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bby256

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