TEMA:

#include <SoftwareSerial.h>
SoftwareSerial max232(3,4);
#include "DHT.h"
#define DHTPIN 2  // CONECTADO AL PIN 2 DE ARDUINO
#define DHTTYPE DHT22 
int temperature;
int humidity;
DHT dht(DHTPIN, DHTTYPE);


 
#define temperature_H               0x00     // variable de la pantalla
#define temperature_L               0x02
 
#define humidity_H               0x00
#define humidity_L               0x06
 


unsigned char temperature_send[8]= {0xA5, 0x5A, 0x05, 0x82, temperature_H, temperature_L, 0x00, 0x00};   // datos que necesita enviar ala pantalla 
unsigned char humidity_send[8]= {0xA5, 0x5A, 0x05, 0x82, humidity_H, humidity_L,  0x00, 0x00};
 
// 
void setup()
 
{
  max232.begin(9600);
Serial.begin(9600);
dht.begin();  

}
 
 void readSensor()
{
humidity = dht.readHumidity();
temperature = dht.readTemperature();
 
}

void loop()

 {
readSensor();
delay(100);  
// int  temperature = dht.readTemperature();
// int  humidity = dht.readHumidity();

     temperature_send[6] = highByte(temperature);
     temperature_send[7] = lowByte(temperature);
       max232.write(temperature_send,8);
delay(100);
     humidity_send[6] = highByte(humidity);
     humidity_send[7] = lowByte(humidity);
   max232.write(humidity_send,8);
   Serial.println(temperature,3);
   Serial.println(humidity,3);
     delay(100);
 
}