HCSR04 with SMS module (Compile) v3 with new sonar code

#define trigPin 12
#define echoPin 13
#define MAX_DISTANCE 500
#include <Wire.h>
#include <NewPing.h>
#include <SoftwareSerial.h>
#include <LiquidCrystal_I2C.h>
#include <LcdBarGraphRobojax.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);  // set the LCD address to 0x27 for a 16 chars and 2 line display
LcdBarGraphRobojax lbg0(&lcd, 20, 0, 0);
SoftwareSerial SIM900A(10,11);
NewPing sonar(trigPin, echoPin, MAX_DISTANCE); // NewPing setup of pins and maximum distance.

void setup()
{
 lcd.init();                      // initialize the lcd                  // initialize the lcd
 lcd.backlight();
 lcd.setCursor(0, 1);
  Serial.begin(115200);
  SIM900A.begin(9600);   // Setting the baud rate of GSM Module
  Serial.begin(9600);
}

void loop()
{
long distance;
                      // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings.
  distance = sonar.ping_cm();

  byte i0 = sonar.ping_cm();
  i0 = max(i0, 10); //maksimal bargraph mentok di 10cm dan bargraph akan tergambar full satu baris tidak menyambung kebawah saat tertampil

  lbg0.drawValue( 10, i0); //Jika value sepuluh 10 atau batas cm di tukar dengan duration sebelahnya maka graph aka terbalik dari kecil ke besar
  delay(200);

  lcd.setCursor(0,1); // Sets the location at which subsequent text written to the LCD will be displayed
lcd.print(""); // Prints string "Distance" on the LCD
lcd.print(distance); // Prints the distance value from the sensor
lcd.print("   ");
delay(200);

if (distance > 75)
      kirimSMS();
  }

void kirimSMS()
{
  Serial.println ("Sending Message");
  SIM900A.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
  delay(1000);
  Serial.println ("Set SMS Number");
  SIM900A.println("AT+CMGS=\"+6289689457568\"\r"); //Mobile phone number to send message
  delay(1000);
  Serial.println ("Set SMS Content");
  SIM900A.println("its GETTING LOW?");// Messsage content
  delay(100);
  Serial.println ("Finish");
  SIM900A.println((char)26);// ASCII code of CTRL+Z
  delay(1000);
  Serial.println ("Message has been sent ->SMS Selesai dikirim");
}