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yeffrimic/detectorDeHumo.ino

Last active October 25, 2019 17:48
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Raw
detectorDeHumo.ino
/*
Sensor de gas
Este sketch tiene conectado a un pin digital
un sensor mq2 que puede detectar el humo en el ambiente
*/
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
#define wifiSSID "nelprro" //nombre del wifi
#define wifiPassword "estalibre" // contrase;a del wifi
#define broker "broker.mqttdashboard.com" // broker en internet, nos permite intercambiar los mensajes
#define alertTopic "/alertaHumo" // topico al que se envia la informacion de la alerta
#define msgAlert "Humo detectado" //mensaje que se envia al momento de detectar la alarma
#define brokerPort 1883
#define clientID "alertaHumo" // clientID to connect to the broker
#define sensorPin D5
boolean changeDetected = false;
boolean sendAlert = false;
boolean alertSent = false;
int publishFails = 0;
int alertFails = 0;
WiFiClient wemosClient;
PubSubClient mqttClient(wemosClient);
boolean publishString(String topic, String data) {
char tempTopic[topic.length()];
topic.toCharArray(tempTopic, topic.length() + 1);
char tempData[data.length()];
data.toCharArray(tempData, data.length() + 1);
return mqttClient.publish(tempTopic, tempData);
}
void callback(char* topic, byte* payload, unsigned int length) {
}
void mqttReconnect() {
while (mqttClient.connected() == false) {
Serial.print("conectando al Broker");
Serial.println(broker);
if (mqttClient.connect(clientID)) {
Serial.println("Conectado al broker");
} else {
Serial.println("falla numero: ");
Serial.println(mqttClient.state());
Serial.println("Intentando Reconexion en 5 segundos");
}
}
}
boolean checkSensor() {
boolean sensorValue = digitalRead(sensorPin);
if (sensorValue) {
if (changeDetected == false) {
Serial.println("start detection");
changeDetected = true;
sendAlert = true;
alertSent = false;
}
} else {
if (changeDetected == true) {
Serial.println("end Detection");
changeDetected = false;
}
}
return changeDetected;
}
boolean wifiConnect() {
if (WiFi.status() != WL_CONNECTED) {
return false;
}
Serial.println("Conectado al Wifi");
Serial.println("Direccion IP");
Serial.println(WiFi.localIP());
return true;
}
void setup() {
Serial.begin(115200);
Serial.println("Conectando al WiFi");
Serial.println(wifiSSID);
WiFi.begin(wifiSSID, wifiPassword);
while (wifiConnect() != true) {
Serial.println(".");
delay(500);
}
mqttClient.setServer(broker, brokerPort);
mqttClient.setCallback(callback);
}
void loop() {
checkSensor();
if (mqttClient.connected() == false) {
mqttReconnect();
} else {
mqttClient.loop();
if (sendAlert) {
delay(500);
if (!mqttClient.publish(alertTopic, msgAlert)) {
alertFails++;
}
sendAlert = false;
alertSent = true;
}
}
}
Raw
detectorDeHumo.json
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]
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