Problem with mq -2 , led and Fire detection

Issues and Errors
1

Hello , Guys !

I’m using the module esp8266-12 Nodemcu , but I’m with the following problems:

  • Do not get caught the LED signal even in virtual mode , I’m using the MQ -2 and verify the presence of gas when the LED status changes from green to red . This change 'm unable to view the blynk and not put the buzzer to alarm .

  • I will use module Fire detection to get the information ?

  • The module esp8266 nodemcu is disconnecting all the time, even though event of change or not.

How to resolve these situations?

Does anyone have any example to mq -2 , leds, fire detection and LM35 ?

hug

2

It’s not enough details. What’s your code? set up? Did you manage to run your project without Blynk?
Also there are similar threads on the forum already.

3

I’m out of the code in hand, when you get home to send you look .

Was using the Arduino and without weriless communication was worked, after entering the blibliotecas the blynk and made changes only visualize the gas data, yet the connection is unstable .

Thanks for the feedback!

4 
#define BLYNK_PRINT Serial    // Comment this out to disable prints and save space
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

int pinSensor = A0;             //Pino Sensor_MQ-2
int Rele = D9;                   //Pino Relé
int buzzer = 15;                 //Pino Buzzer
int var = 0;
int Gas = 30;             //Variável para selecionar  a quantidade de Gás/Fumaça detectada
int valor = 0;
int LedR = 13;
int LedG = 12;
int pinoLm = D1;           //Pino do LM35  analogico  
int valorLido =0;               
float temperatura =0;

char auth[] = "dd644b54ef174afebd9474091e24de48";
 
void setup()
{
    Serial.begin(115200);             //Inicia porta Serial em 9600 baud
    Blynk.begin(auth, "P@$$0$", "71915321347182286112FelixAnalice");
      pinMode(Rele, OUTPUT);
      pinMode(buzzer, OUTPUT);
      pinMode(LedR, OUTPUT);
      pinMode(LedG, OUTPUT);
      pinMode(pinoLm,INPUT);
    //Serial.println("TCC Félix Passos");
}
 
void loop()
{
        valorLido = digitalRead(pinoLm);          	     //Faz a leitura da entrada do LM35
	temperatura = (valorLido * 0.00488);         // Faz o calculo da leitura
	temperatura = temperatura * 100;			
	Serial.print("Temperatura atual:");
	Serial.println(temperatura);
	Blynk.virtualWrite (1,temperatura);
    
valor =  analogRead(pinSensor);              //Faz a leitura da entrada do sensor
   // valor =  digitalRead(pinSensor);
valor = map(valor, 0, 1023, 0, 100);             //Faz a conversão da variável para porcentagem
Serial.println(valor);                           //Escreve o valor na porta Serial do sensor Gás
Blynk.virtualWrite (2,valor);

if (valor>=Gas){                           //Condição, se valor continuar maior que ValDesarm faça:
    
    Blynk.tweet("Vazamento de Gás!!!");
    digitalWrite(Rele, HIGH);                    //Liga relé para "sprinkler"
    Blynk.virtualWrite (3,Rele);
    digitalWrite(LedG,LOW);
    Blynk.virtualWrite (4,LedG);
    digitalWrite(LedR,HIGH);
    Blynk.virtualWrite(5,LedR);
   // Serial.println("Alarme disparado!!!");       //Apresenta mensagem na porta serial
    
    tone(buzzer,1500,3000);
    Blynk.virtualWrite(9,buzzer);
    delay(1000);                                 //Tempo de disparo do alarme
    digitalWrite(buzzer, LOW);                   //Desliga o alarme
   // digitalWrite(LedR,HIGH);
    delay(2000);                                 //Aguarda
    Blynk.tweet("Alarme Desligado!!!"); 
 
}else
    {
    digitalWrite(Rele, LOW);                     //Caso contrário permaneça com o relé desligado
    Blynk.virtualWrite (6,Rele);
    digitalWrite(LedR,LOW);
    Blynk.virtualWrite (7,LedG);
    digitalWrite(LedG,HIGH);
    Blynk.virtualWrite(8,LedR);
    
    
    Blynk.run();
     
}
 //  Blynk.run();
  //  delay(1000);
    
}                                                    //Fim do loop