Moisture sensor with 4 sensor

#include <AntoIO.h>
#include <Adafruit_ADS1015.h>
#include <Wire.h>
#define MAX_ADC 27000
#define MIN_ADC 11300


Adafruit_ADS1115 ads(0x48);


//ส่วนของ การเชื่อมต่อ Node MCU กับ Anto.io//
const char *ssid ="Redmi";
const char *pass ="monster12348";
const char *user ="nutrajangtcr";
const char *token ="ouXRHnELxPUOTGtx1VF6xUu5Nl9S4zRcTBby08Yj";
const char *thing = "Moisture";
int sln[4] = {D4, D5, D6, D7}; // กำนหนด ขา output โซลินอย
String Antosend;
String KraTang[4]={"KraTang1", "KraTang2", "KraTang3", "KraTang4"};   //กำหนด CH กระถาง //

char buf[5];
AntoIO anto(user, token, thing);
//***********************************************//



void setup()
{
 // เริ่มเชื่อมต่อ wifi //
  Serial.begin(115200);
  delay(10);
  Serial.print("");
  Serial.print("");
  Serial.print("Anto Library version: ");
  Serial.println(anto.getVersion());
  Serial.print("/nTrying to connect");
  Serial.print(ssid);
  Serial.println("...");
  anto.begin(ssid,pass, messageReceived);
  Serial.println("\nConnected Anto done");
  anto.sub("KraTang1");    //กำหนด channel ของกระถางแต่ละกระถาง//
  anto.sub("KraTang2");
  anto.sub("KraTang3");
  anto.sub("KraTang4");
  Wire.begin(D1, D2);
  ads.begin();
  pinMode(sln[0], OUTPUT);
  pinMode(sln[1], OUTPUT);
  pinMode(sln[2], OUTPUT);
  pinMode(sln[3], OUTPUT);
}

int16_t take_ADC(int16_t *adc, byte length )
{
  for (byte x = 0; x <= length; ++x)
  {
    adc[x] = ads.readADC_SingleEnded(x);
  }
}
int16_t take_value(int16_t *arr, byte length)
{
  // int16_t per[4],  ,take[x]
  //  byte per_len = sizeof(per) / sizeof(int16_t);
  int16_t value[4];
  take_ADC(arr, length);
  for (byte x = 0; x < length; ++x)
  {
    value[x] = arr[x];
    arr[x] = map(arr[x],MIN_ADC,MAX_ADC, 100, 0);

  }
  Serial.println("----------------------------------");

}
void messageReceived(String thing, String channel, String payload) {

  Serial.print("Recieved: ");
  Serial.print(thing);
  Serial.print("/");
  Serial.print(channel);
  Serial.print("-> ");
  Serial.println(payload);

 }
void loop()
{
  anto.mqtt.loop();
  char state;
  int16_t per[4];
  byte per_len = sizeof(per) / sizeof(int16_t);
  take_value(per, per_len);                      Serial.println("ค่าของ per[x] จาก void loop ");
    for (int x = 0 ; x < 4; x++)
    {
      if (per[x] <=16)
      {
        state='A';    // status A =  Solinoid LOW
      }
      else if (per[x] <= 60 && per[x] > 16)
      {

      state='B';  //  status B = Solinoid HIGH
      }
      else
      {
      state='C'; // status C = SOlinoid LOW
      }

      switch(state){
        case 'A': Serial.print("Sensor ");
        Serial.print(x + 1); Serial.print("=");
        Serial.print(per[x]); Serial.print("%  Status : "); Serial.print("ไม่ได้จุ่มดิน");
        Serial.print("  ขา Digital D"); Serial.print(sln[x]);Serial.print("LOW");Serial.println("LOW");
        digitalWrite(sln[x], LOW);break;

        case 'B': Serial.print("Sensor ");
        Serial.print(x + 1); Serial.print("=");
        Serial.print(per[x]); Serial.print("%  Status : ");Serial.print("จุ่มดินแล้ว");
        Serial.print("  ขา Digital D"); Serial.print(sln[x]); Serial.println("HIGH");
        digitalWrite(sln[x], HIGH); break;

        case 'C' : Serial.print("Sensor ");
        Serial.print(x + 1); Serial.print("=");
        Serial.print(per[x]); Serial.print("%  Status : ");Serial.print("จุ่มน้ำแล้ว");
        Serial.print("  ขา Digital D"); Serial.print(sln[x]); Serial.println("LOW");
        digitalWrite(sln[x], LOW); break;

        default : Serial.print("Can't to read ADC"); break;

      }
  /*   if(per[x]>=0){
      Antosend = String(per[x]);
      Antosend.toCharArray(buf,Antosend.length());
      anto.pub(KraTang[x],(const char*)buf);
     }*/    //ส่งค่า ความชื้นใส่ channel ของ KraTang ของ anto//

    }
    delay(1000);


    /* for(byte x=0;x<per_len;++x)
      {
       Serial.println(per[x]);
      }
      Serial.println("--------------");*/

  }