This document provides code snippets for using an Arduino LCD 16x2 I2C module. It includes code to initialize the LCD with the correct I2C address and dimensions. The setup function initializes serial communication and the LCD. The loop function demonstrates printing text to different rows on the LCD and sending corresponding output to the serial monitor.

1. Arduino LCD 16x2

2. Skecth 1
• #include <Wire.h>
• #include <LiquidCrystal_I2C.h>
•
• LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27,
2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD
I2C address
• //LiquidCrystal_I2C lcd =
LiquidCrystal_I2C(0x27, 20, 4);

3. Skecth 2
• void setup()
• {
• Serial.begin(9600);
•
• lcd.begin(20,4); // initialize the lcd for 16 chars
2 lines, turn on backlight
• // delay(2000);
• // lcd.init();
• // lcd.backlight();

4. Skecth 3
• /* lcd.setCursor(0,0);
• lcd.print(" Tes baris satu ");
• Serial.println("Tes baris satu");
• delay(1000);
• lcd.setCursor(0,1);
• lcd.print(" LCD I2C Module ");
• Serial.println("Baris dua");
• delay(8000);
• */
• }

5. Skecth 4
• void loop()
• {
• lcd.setCursor(0,0);
• lcd.print(" Baris kesatu ");
• Serial.println("Tes satu");
• delay(1000);
• lcd.setCursor(0,1);
• lcd.print(" baris kedua ");
• Serial.println("Baris kedua");
• delay(8000);

6. Skecth 5
• lcd.setCursor(0,2);
• lcd.print(" baris ketiga ");
• Serial.println("Baris ketiga");
• delay(8000);
• lcd.setCursor(0,3);
• lcd.print(" baris empat ");
• Serial.println("Baris empat");
• delay(8000);
• }