Arduino Leonardo - Electronical Lock

Geplaatst op 2020-06-22

Initializing the LCD with a function

To use the LCD we have to use a library it's the LiquidCrystal_I2C library. So first we have to initialize the library and afther that we have to specify how many rows and characters we have on the LCD.

And to see if the LCD fully works we can togle the backlight on, off and on again. And display a welcome message to the user.

Now we can use the LCD in our further program

Initialization of the LCD

// set the LCD address to 0x27 for a 20 chars 4 line display
// Set the pins on the I2C chip used for LCD connections:
//                    addr, en,rw,rs,d4,d5,d6,d7,bl,blpol
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);	// The Initialization of the library

void InitializationLCD() {
  lcd.begin(20,4);				// Specify the amount of characters and rows to the library
  BackLightTest();
  lcd.setCursor(0,0);           // set cursor to positon x=0, y=0
  lcd.print("Brainbox");        // print text on the LCD
  delay(500);
  lcd.setCursor(2,1);
  lcd.print("Arduino");
  delay(500);
  lcd.setCursor(4,2);
  lcd.print("Lock");
  delay(1000);
  lcd.clear();
}

void BackLightTest() {
  lcd.backlight();          //backlight on
  delay(250);
  lcd.noBacklight();        //backlight off
  delay(250);
  lcd.backlight();          //backlight on
  }

Vorige pagina 6. The code - part 1 - The Keypad Huidige pagina 7. The code - part 2 - The LCD Volgende pagina 8. The code - part 3 - The code 1. Introduction 2. The Schematic 3. The Keypad 4. The LCD module 5. The servo 6. The code - part 1 - The Keypad 7. The code - part 2 - The LCD 8. The code - part 3 - The code 9. The code - part 4 - More codes 10. The code - part 5 - Setup and Loop 11. The full code Geschreven door Sander Speetjens

Arduino Leonardo - Electronical Lock

Initializing the LCD with a function

Initialization of the LCD

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