#include < Arduino.h >
#include < ESP8266WiFi.h >
#include < Wire.h >
#include < Adafruit_MQTT.h >
#include < Adafruit_MQTT_Client.h >
#include "esp_camera.h"
#include < SIM900.h >
#include < SoftwareSerial.h >
#define PIR_PIN 13
#define BUZZER_PIN 12
const char* ssid = "tu_ssid";
const char* password = "tu_contraseña";
const char* mqtt_server = "mqtt.ubidots.com";
const int mqtt_port = 1883;
const char* mqtt_user = "tu_token_ubidots";
const char* mqtt_password = "";
#define SIM900_RX 8
#define SIM900_TX 7
SoftwareSerial sim900(SIM900_TX, SIM900_RX);