sketch_KIT_PLS_ADS_2.0

#include <SDI12.h>  
    #include <Wire.h>
    #include <DFRobot_ADS1115.h>

    DFRobot_ADS1115 ads(&Wire);

    #define SERIAL_BAUD 115200    
    #define DATA_PIN 12        
    
    SDI12 mySDI12(DATA_PIN); 
    
    //SDI 12 commands
    #define myComAdress   "?!"    //ask the adress of the probe
    #define myComId       "0I!"   //ask the identification
    #define myComMeasure  "0M!"   //ask to start a measurement
    #define myComSend     "0D0!"  //ask to send the measure
    #define myComSetUnitCM  "0OSU+0!"  //set the unit
    #define myComUnit     "0OSU!" //ask for the unit of the measure, +0=m, +1=cm, +2=ft, +3=mbar, +4=psi


String readsensor(){ 
  String sdiResponse = "";
  delay(30);
  while(mySDI12.available()){    
    char c = mySDI12.read();
    if ((c != '\n') && (c != '\r')) { sdiResponse += c; delay(5); }    
  }
  return sdiResponse;
}

void measREFsensor(){
  delay(300);      
  mySDI12.sendCommand(myComMeasure);
  while(mySDI12.available()){ mySDI12.read();}    
  delay(1000);    
  mySDI12.clearBuffer();   
  delay(500);
  mySDI12.sendCommand(myComSend);  
  delay(50);
  String rawdata = readsensor();
  mySDI12.clearBuffer();   
  delay(50); 
  
  //Decoding string sent from probe  
  int p=0;
  int pos[] = {0,0};
  for (int z=0 ; z<rawdata.length() ; z++)  {
    char u = rawdata.charAt(z);
    if (u == '+' || u == '-') {
      pos[p] = z ;
      p++; 
    } 
    delay (50);
  }    

  float RealRefLevel = (rawdata.substring(pos[0],pos[1])).toFloat()-1;  //Water level from the reference sensor (without correction)
  String Temperature = rawdata.substring(pos[1],rawdata.length()); //Water temperature from the reference sensor
   
  Serial.print("PLS Raw Data:");
  Serial.println(rawdata);
  delay(50);  

  Serial.println("Temperature:" +Temperature); 
  delay(50);  
                       
}

void StartRefSensor(){
  mySDI12.begin();
  delay(2000); 
  
  Serial.print(F("'**** Identification of the sensor: "));
  mySDI12.sendCommand(myComId);
  delay(300);
  Serial.println(readsensor());
  delay(500);
  mySDI12.clearBuffer();
  
  Serial.print(F("'**** Adress of the sensor: "));
  mySDI12.sendCommand(myComAdress);
  delay(300);
  Serial.println(readsensor());
  delay(500);
  mySDI12.clearBuffer();

  Serial.print(F("'**** Set the unit of the sensor to be m: "));
  mySDI12.sendCommand(myComSetUnitCM);
  delay(300);
  Serial.println(readsensor());
  delay(500);
  mySDI12.clearBuffer();
  
  Serial.print(F("'**** Unit 0+(0=m, 1=cm, 2=ft, 3=mbar, 4=psi): "));  
  mySDI12.sendCommand(myComUnit);
  delay(300);
  Serial.println(readsensor());
  delay(500);
  mySDI12.clearBuffer();
  }


void setup(void) 
{
    Serial.begin(115200);
    ads.setAddr_ADS1115(ADS1115_IIC_ADDRESS1);   // 0x48
    ads.setGain(eGAIN_TWOTHIRDS);   // 2/3x gain
    ads.setMode(eMODE_SINGLE);       // single-shot mode
    ads.setRate(eRATE_128);          // 128SPS (default)
    ads.setOSMode(eOSMODE_SINGLE);   // Set to start a single-conversion
    ads.init();
}

void loop(void) 
{
    if (ads.checkADS1115())
    {
        int16_t adc0, adc1, adc2, adc3;
        adc0 = ads.readVoltage(0);
        Serial.print("A0:");
        Serial.print(adc0);
        Serial.print("mV,  ");
        adc1 = ads.readVoltage(1);
        Serial.print("A1:");
        Serial.print(adc1);
        Serial.print("mV,  ");
        adc2 = ads.readVoltage(2);
        Serial.print("A2:");
        Serial.print(adc2);
        Serial.print("mV,  ");
        adc3 = ads.readVoltage(3);
        Serial.print("A3:");
        Serial.print(adc3);
        Serial.println("mV");
    }
    else
    {
        Serial.println("ADS1115 Disconnected!");
    }

    delay(1000);
}


void loop() {
  for (int i = 0; i <= 20; i++){
    measREFsensor();
    delay(100);
    measKitSensor();
    delay(100);
}
  while(1){}
}