Arduino I2C dan LCD 16×2 SC162A3

Akhir nya ane coba dengan Arduino nano dan berhasil.
Pertama kali kita harus cari address list untuk i2cnya dengan menscannya dengan script  :

#include
void setup()
{
   Wire.begin();
Serial.begin(9600);
   Serial.println(“nI2C Scanner”);
}
void loop()
{
  byte error, address;
int nDevices;
Serial.println(“Scanning…”);
  nDevices = 0;
  for(address = 1; address < 127; address++ )
  {
     Wire.beginTransmission(address);
    error = Wire.endTransmission();
    if (error == 0)
    {
      Serial.print(“I2C device found at address 0x”);
      if (address<16 br="" nbsp="">        Serial.print(“0”);
      Serial.print(address,HEX);
      Serial.println(”  !”);
      nDevices++;
    }
else if (error==4)
     {
      Serial.print(“Unknow error at address 0x”);
      if (address<16 br="" nbsp="">        Serial.print(“0”);
      Serial.println(address,HEX);
    }  
  }
  if (nDevices == 0)
    Serial.println(“No I2C devices foundn”);
  else
    Serial.println(“donen”);
  delay(5000);           // wait 5 seconds for next scan
  }

setelah kita dapatkan barulah kita bisa coba script untuk helo worldnya … :

#include
#include LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display
void setup()
{
  lcd.init();                      // initialize the lcd
  lcd.backlight();
  lcd.print(“Halo, aku isur..”);
  lcd.setCursor(0,1);
  lcd.print(“aku pake i2c”);
}
void loop()
{
}