PeopleCounter_NodeMCU.ino

// Made by: Maria Carlina Hernandez
/****************************************
 * Include Libraries
 ****************************************/
#include "UbidotsESPMQTT.h"
/****************************************
 * Define Constants
 ****************************************/
#define TOKEN "..." // Your Ubidots TOKEN
#define WIFINAME "..." //Your SSID
#define WIFIPASS "..." // Your Wifi Pass
#define MQTTCLIENTNAME "..." // Your MQTT Client Name, it must be unique so we recommend to choose a random ASCCI name
#define DEVICE "pir-sensor" // Assign the device label
#define VARIABLE "motion" // Assign the variable label
#define LED 2
#define SENSOR D6
uint8_t contador=0;
unsigned long estado = 0;
Ubidots client(TOKEN, MQTTCLIENTNAME);
/****************************************
 * Auxiliar Functions
 ****************************************/
void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i=0;i<length;i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();
}
/****************************************
 * Main Functions
 ****************************************/
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(SENSOR, INPUT);
  pinMode(LED, OUTPUT);
  client.wifiConnection(WIFINAME, WIFIPASS);
  client.begin(callback);
  }
void loop() {
  // put your main code here, to run repeatedly:
  if (!client.connected()) {
      digitalWrite(LED, LOW);        
      client.reconnect();
      digitalWrite(LED, HIGH);
  } else {
      digitalWrite(LED, HIGH);
  }
 
  uint8_t sensorValue = digitalRead(SENSOR);
  bool flag = false; 
  
  if(sensorValue>0){
    for(uint8_t espera=0; espera<=4; espera++){
      sensorValue = digitalRead(SENSOR);
      Serial.println(sensorValue);
      if(sensorValue==1){
      contador++;
      }
      if(contador>3){
        flag = true;
      }
      delay(500);
    }
  }
  
  Serial.println("sending data");
  uint8_t value;
  if(flag){
    value = 1;
    client.add(VARIABLE, value);
    client.ubidotsPublish(DEVICE);
  }else{
    value = 0;
    if(estado == 10000){
      client.add(VARIABLE, value);
      client.ubidotsPublish(DEVICE);
      estado = 0;      
    }
  }
  estado++;
  client.loop();
  contador = 0;
}