I need to correct the code Arduino

#include <OneWire.h>
#include <SoftwareSerial.h>

int DS18S20_Pin = 2; //DS18S20 Signal pin on digital 2

//Temperature chip i/o
OneWire ds(DS18S20_Pin);  // on digital pin 2
SoftwareSerial mySerial(11, 10); // RX, TX
unsigned char data[4] = {};
float distance;


void setup(void) {
   Serial.begin(57600);
  mySerial.begin(9600);
}

void loop(void)
{
  sketch1();
}

void sketch1( void )
{
  static unsigned long startWait = 0;
  static const unsigned long waitMillis = 3000;
    if ( millis() - startWait >= waitMillis ) // now - start == elapsed time so far
  {
    
    do {
      for (int i = 0; i < 4; i++)
      {
        data[i] = mySerial.read();
      }
    } while (mySerial.read() == 0xff);
 
    mySerial.flush();
 
    if (data[0] == 0xff)
    {
      int sum;
      sum = (data[0] + data[1] + data[2]) & 0x00FF;
      if (sum == data[3])
      {
        distance = (data[1] << 8) + data[2];
        if (distance > 30)
        {
          Serial.print("distance=");
          Serial.print(distance / 10);
          Serial.println("cm");
        } else
        {
          Serial.println("Below the lower limit");
        }
      }
   }
   }
  {  float temperature = getTemp();
    Serial.println(temperature);
    int sensorValue = analogRead(A0);// read the input on analog pin 0:
    float voltage = sensorValue * (5.0 / 1024.0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):
    Serial.println(voltage); // print out the value you read:

    startWait += waitMillis; // new start for next interval
  }
}


float getTemp(){
  //returns the temperature from one DS18S20 in DEG Celsius

  byte data[12];
  byte addr[8];

  if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      ds.reset_search();
      return -1000;
  }

  if ( OneWire::crc8( addr, 7) != addr[7]) {
      Serial.println("CRC is not valid!");
      return -1000;
  }

  if ( addr[0] != 0x10 && addr[0] != 0x28) {
      Serial.print("Device is not recognized");
      return -1000;
  }

  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end

  byte present = ds.reset();
  ds.select(addr);   
  ds.write(0xBE); // Read Scratchpad

 
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  ds.reset_search();
 
  byte MSB = data[1];
  byte LSB = data[0];

  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;
    
 //startWait += waitMillis; // new start for next interval
 
  return TemperatureSum;
}

 

It would be a good idea if you explained what the problem is.

 

I need to correct the code Arduino

Welcome to AAC.

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