I2C LCD arduino code

Download the .zip file below. Unzip it and open it in Arduino IDE. Compile and upload. Remember, you need the LiquidCrystal_I2C library below as well.

Download the LiquidCrystal_I2C library .zip file below. Install it on your Arduino IDE.


 /*
  LCD i2c test
  http://www.electronoobs.com
  http://www.youtube.com/c/ELECTRONOOBS
 */
 
//LCD config
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x3f,20,4);  //sometimes the adress is not 0x3f. Change to 0x27 if it dosn't work.

void setup() {
  lcd.init();
  lcd.backlight();

}

void loop() { 
    
  lcd.clear();
  lcd.setCursor(2,0);
  lcd.print("ELECTRONOOBS");
  lcd.setCursor(2,1);  
  lcd.print("hello  world");
  delay(3000);
  
}//end void

I2C LCD arduino code

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