This is an code to send informations of moisture, soil temperature and air temperature

sensor.c

#include "DHT.h"
#define DHTPIN 14 
#define DHTTYPE DHT11 
const int pino_sinal_analogico = 25;
DHT dht(DHTPIN, DHTTYPE);
float localHum = 0;
float localTemp = 0;
float percentUm = 0;
int valor_analogico ;

void setup()
{
  Serial.begin(115200);
  pinMode(pino_sinal_analogico, INPUT);
  delay(1000); // give me time to bring up serial monitor
  Serial.println("");
  Serial.println("ESP32 DHT Temperature and Humidity ");
  Serial.println("");
  dht.begin();
}

void loop()
{
  getDHT();
  Serial.print("Temp: ==> ");
  Serial.print(localTemp);
  Serial.print("  Hum ==> ");
  Serial.println(localHum);
  Serial.print("  Hum ==> ");
  Serial.println(percentUm);
  delay(2000);

  //Le o valor do pino A0 do sensor
  valor_analogico = analogRead(pino_sinal_analogico);
 
  //Mostra o valor da porta analogica no serial monitor
  
 
  //Solo umido, acende o led verde
  if (valor_analogico > 0 && valor_analogico < 400)
  {
    Serial.println(" Status: Solo umido");
    Serial.println(valor_analogico);
  }
 
  //Solo com umidade moderada, acende led amarelo
  if (valor_analogico > 400 && valor_analogico < 800)
  {
    Serial.println(" Status: Umidade moderada");
    Serial.println(valor_analogico);
  }
 
  //Solo seco, acende led vermelho
  if (valor_analogico > 800 && valor_analogico < 1024)
  {
    Serial.println(" Status: Solo seco");
    Serial.println(valor_analogico);
  }
  delay(100);
}
 
void getDHT()
{
  float tempIni = localTemp;
  float humIni = localHum;
  localTemp = dht.readTemperature();
  localHum = dht.readHumidity();
  if (isnan(localHum) || isnan(localTemp))   // Check if any reads failed and exit early (to try again).
  {
    localTemp = tempIni;
    localHum = humIni;
    return;
  }
}