Cod Esp

#include <SoftwareSerial.h>
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#include <ArduinoJson.h>
SoftwareSerial s(D6,D5);
const char* ssid = "cro";
const char* password = "cheguevara";
const char* mqtt_server = "test.mosquitto.org";
WiFiClient espClient;
PubSubClient client(espClient);
int pornit=0;
int Md =0;
int lim1 =0;
int lim2 =0;
int lim3 =0;
int lim4 =0;
int lim5 =0;
int lim6 =0;
int pir1 =0;
int pir2 =0;
int apa =0;
int temperatura =0;

void setup() {
  // Initialize Serial port
  Serial.begin(9600);
  setup_wifi();
  client.setServer(mqtt_server, 1883);
  s.begin(9600);
  while (!Serial) continue;
 }

void loop() {
  const size_t capacity = JSON_OBJECT_SIZE(16) + 16;
  DynamicJsonDocument doc(capacity);
  DeserializationError error = deserializeJson(doc, s);
  if (error) {
  Serial.print(F("deserializeJson() failed: "));
  Serial.println(error.c_str());
  return;
  }
  Serial.println("JSON received and parsed");
  serializeJsonPretty(doc,Serial);
  pornit=doc["pornit"];
  Md=doc["mod"];
  lim1=doc["lim1"];
  lim2=doc["lim2"];
  lim3=doc["lim3"];
  lim4=doc["lim4"];
  lim5=doc["lim5"];
  lim6=doc["lim6"];
  pir1=doc["pir1"];
  pir2=doc["pir2"];
  apa=doc["apa"];
  temperatura=doc["temperatura"];
  if (!client.connected()) {
    reconnect();
  }
  if(!client.loop())
    client.connect("ESP8266Client");
    static char z1[10];
    static char z2[10];
    static char z3[10];
    static char z4[10];
    static char z5[10];
    static char z6[10];
    static char z7[10];
    static char z8[10];
    static char z9[10];
    static char z10[10];
    static char z11[10];
    static char z12[10];
    dtostrf(pornit, 6, 4, z1);
    dtostrf(Md, 6, 4, z2);
    dtostrf(lim1, 6, 4, z3);
    dtostrf(lim2, 6, 4, z4);
    dtostrf(lim3, 6, 4, z5);
    dtostrf(lim4, 6, 5, z6);
    dtostrf(lim5, 6, 4, z7);
    dtostrf(lim6, 6, 4, z8);
    dtostrf(pir1, 6, 4, z9);
    dtostrf(pir2, 6, 5, z10);
    dtostrf(apa, 6, 4, z11);
    dtostrf(temperatura, 6, 4, z12);
    client.publish("pornit", z1);
    client.publish("Md", z2);
    client.publish("lim1", z3);
    client.publish("lim2", z4);
    client.publish("lim3", z5);
    client.publish("lim4", z6);
    client.publish("lim5", z7);
    client.publish("lim6", z8);
    client.publish("pir1", z9);
    client.publish("pir2", z10);
    client.publish("apa", z11);
    client.publish("temperatura", z12);

}



void setup_wifi() {
  delay(10);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("WiFi connected - ESP IP address: ");
  Serial.println(WiFi.localIP());
}
void reconnect() {
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    if (client.connect("ESP8266Client")) {
      Serial.println("connected");
      //client.subscribe("room/lamp");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}