int temp1;
int hum1;
int temp2;
int hum2;
int temp3;
int hum3;
#include <HTU21D.h>
HTU21D myHTU21D(HTU21D_RES_RH12_TEMP14);
void setup() {
  pinMode(8,  OUTPUT);  // CD4051 pin 11 (A)
  pinMode(9,  OUTPUT);  // CD4051 pin 10 (B)
  pinMode(10, OUTPUT);  // CD4051 pin 9  (C)
  Serial.begin(9600);
  while (myHTU21D.begin() != true)
  {
    Serial.println(F("Sensor is faild or not connected")); //(F()) saves string to flash & keeps dynamic memory free
    delay (200);
    // Инициируем передачу данных по последовательному порту на скорости 9600 бот.
  }
}
void loop() {
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  myHTU21D.begin();
  delay (150);
  temp1 = myHTU21D.readTemperature();
  hum1 = myHTU21D.readCompensatedHumidity();
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10, HIGH);
  myHTU21D.begin();
  delay (150);
  temp2 = myHTU21D.readTemperature();
  hum2 = myHTU21D.readCompensatedHumidity();
  digitalWrite(8, LOW);
  digitalWrite(9, HIGH);
    digitalWrite(10, LOW);
  myHTU21D.begin();
  delay (150);
  temp3 = myHTU21D.readTemperature();
  hum3 = myHTU21D.readCompensatedHumidity();
  Serial.print(" T1: "); Serial.print(temp1 );
  Serial.print(" H1: "); Serial.print(hum1 );
  Serial.print(" T2: "); Serial.print(temp2 );
  Serial.print(" Н2: "); Serial.print(hum2 );
  Serial.print(" Т3: "); Serial.print(temp3 );
  Serial.print(" Н3: "); Serial.print(hum3 );