MQ-4 Gas Sensor with ESP8266 and Blynk application | IOT Project

<p> </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_9iB_sYg1-Mky5sxSkbhrGDVAfL-chydgir_V9lRkBMzcjZr_l2EmzRPBvKbUiWqwaWiWVTph6iuRl0nB8UGQYeqGJuy-EgktjQ6d45jNBUTu9_JyMSonTaJ0kFeYPABRJVeQIg5Z3MqJ/s1857/MQ-4+Gas+Sensor+with+ESP8266+and+Blynk+application++IOT+Project.gif" style="margin-left: 1em; margin-right: 1em;" target="_blank"><img alt="MQ-4 Gas Sensor with ESP8266 and Blynk application | IOT Project" border="0" data-original-height="1042" data-original-width="1857" height="360" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_9iB_sYg1-Mky5sxSkbhrGDVAfL-chydgir_V9lRkBMzcjZr_l2EmzRPBvKbUiWqwaWiWVTph6iuRl0nB8UGQYeqGJuy-EgktjQ6d45jNBUTu9_JyMSonTaJ0kFeYPABRJVeQIg5Z3MqJ/w640-h360/MQ-4+Gas+Sensor+with+ESP8266+and+Blynk+application++IOT+Project.gif" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><p></p><div class="separator" style="clear: both; text-align: center;"><span style="font-size: 16pt; text-align: left;"><br /></span></div><div class="separator" style="clear: both; text-align: justify;"><b style="text-align: left;"><span style="font-size: x-large;">MQ-4 Gas Sensor :</span></b></div><div><p style="text-align: left;"><span style="mso-bidi-font-weight: normal;"><span style="font-size: 16pt; line-height: 24.5333px;">Monitor your home Gas leakage with your mobile phone. This sensor detects the concentration of methane and CNG gas in the air and outputs its reading as an analog voltage and digital voltage . The concentration sensing range of 300 ppm to 10,000 ppm is suitable for leak detection. </span></span></p><p style="text-align: left;"><span style="font-size: 16pt;"><b>Components: </b></span></p><p style="text-align: left;"><span style="font-size: 16pt;">1:Node Mcu Esp8266.</span></p><p style="text-align: left;"><span style="font-size: 16pt;">2:MQ-4 Gas sensor. </span></p><p style="text-align: left;"><span style="font-size: 16pt;">3:LED 4:Resistors </span></p><p style="text-align: left;"><span style="font-size: 16pt;">5:Buzzer </span></p><p style="text-align: left;"><span style="font-size: 16pt;">6:Bread board. </span></p><p style="text-align: left;"><span style="font-size: 16pt;">7:Some jumper wires</span></p><h2 style="text-align: left;"><span style="mso-bidi-font-weight: normal;"><span style="font-size: x-large; line-height: 24.5333px;"><br /></span></span></h2><h2 style="text-align: left;"><span style="mso-bidi-font-weight: normal;"><span style="font-size: x-large; line-height: 24.5333px;">Blynk:</span></span></h2><div><span style="font-size: 21.3333px; mso-bidi-font-weight: normal;"><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSMxBcvlc7iASe7-aVVYIuNCCqufkhpn7b9KUyjlxB26KrfAb5EuoTeTwakx7FHBzZlQpQJuHIx0Nud2fpoEQn3z-GH5LTVWltr8Swh9lor6tfpCIgoZrxBMY7ry7aDQSt4T2oPMEEXi8q/s1920/Blynk3.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSMxBcvlc7iASe7-aVVYIuNCCqufkhpn7b9KUyjlxB26KrfAb5EuoTeTwakx7FHBzZlQpQJuHIx0Nud2fpoEQn3z-GH5LTVWltr8Swh9lor6tfpCIgoZrxBMY7ry7aDQSt4T2oPMEEXi8q/s320/Blynk3.png" width="180" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEholdA21fAafYULd3M3Jm3bk36DYbBYl2V_oD4Clc3yzpjPrWLRKmEIivNfQieB47F2PrejTfRcv-LxnK3oAjy9uiNRQ5bUMxuiR7r-jbfWMlLvij2iusWVqznhzT-K7TDP0wHl-Frgt9Sa/s1920/Blynk2.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEholdA21fAafYULd3M3Jm3bk36DYbBYl2V_oD4Clc3yzpjPrWLRKmEIivNfQieB47F2PrejTfRcv-LxnK3oAjy9uiNRQ5bUMxuiR7r-jbfWMlLvij2iusWVqznhzT-K7TDP0wHl-Frgt9Sa/s320/Blynk2.png" width="180" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"></div><br /><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDDDM0p1kl2KRzAzvnqgJvoIm3NsKxsjlfIcUOxP3DbwPRex7QV-lWMj83f5wDlrGevgkzuvmIe0uN96IWSWmImp-HJHik69PHlS21yC7mFWdnhYRLEIIdnfTvcbGGjlcdFQ2BrgOhkqpG/s1920/Blynk4.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="294" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDDDM0p1kl2KRzAzvnqgJvoIm3NsKxsjlfIcUOxP3DbwPRex7QV-lWMj83f5wDlrGevgkzuvmIe0uN96IWSWmImp-HJHik69PHlS21yC7mFWdnhYRLEIIdnfTvcbGGjlcdFQ2BrgOhkqpG/w180-h294/Blynk4.png" width="180" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioqyG0vUwIOdhyTAPIRK7mscKG1p4DzFkI1ClKZLHDndilHmh0KRlCTbFiyTqsHwzptZtX4NjiRCwJmCdXxva2dW85ladkdVBfXcKRcacVHCmYp9_G6bc63UEHKqUTJ4_23OE0v9hHWJBe/s1920/Blynk5.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="295" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioqyG0vUwIOdhyTAPIRK7mscKG1p4DzFkI1ClKZLHDndilHmh0KRlCTbFiyTqsHwzptZtX4NjiRCwJmCdXxva2dW85ladkdVBfXcKRcacVHCmYp9_G6bc63UEHKqUTJ4_23OE0v9hHWJBe/w180-h295/Blynk5.png" width="180" /></a></div></div><br /><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjz5IiDeo3iSxugRG2LY2lcp-qJUuQ8HHXVb_kwp_VFcU_uiL0A3DM0J2L6hJsq5ySS5g8bMURZzfyf03YxXw8p70ZNQetCxjmxkV93cBwze6_wW2bXOIEJwTuJ3LUj-SF53cm_7zdcXunM/s1920/Blynk6.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjz5IiDeo3iSxugRG2LY2lcp-qJUuQ8HHXVb_kwp_VFcU_uiL0A3DM0J2L6hJsq5ySS5g8bMURZzfyf03YxXw8p70ZNQetCxjmxkV93cBwze6_wW2bXOIEJwTuJ3LUj-SF53cm_7zdcXunM/s320/Blynk6.png" width="180" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhm2ZPx1zwkp8ZbCW9m4b8eVWlQDwy5muMaIPj_XaA_Y2a8hXpYRTY9JG-6CYA5AGtvGp9bNqffu4ND_LJw2nj5uUaSBQOsIHdXPZd74QrHITGRhga9j7Zdo68tuRYwgv9nqNJRE_o4dr-S/s1920/Blynk7.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhm2ZPx1zwkp8ZbCW9m4b8eVWlQDwy5muMaIPj_XaA_Y2a8hXpYRTY9JG-6CYA5AGtvGp9bNqffu4ND_LJw2nj5uUaSBQOsIHdXPZd74QrHITGRhga9j7Zdo68tuRYwgv9nqNJRE_o4dr-S/s320/Blynk7.png" width="180" /></a></div></div></div><br /><br /><br /><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiy2ySwNAnDmOi0AuNfax3u0iaQhtdkO2XcK94edIf2s_dNWcJUPLNW6y7zraT7r8pTlfJ30aPW-4WCHHc9G-BQjkgpK42E7t6oacVvO4q7pAymTUHF3KvzYUBEwukOFhF2yzHwjq2rYaS/s1920/Blynk1.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiy2ySwNAnDmOi0AuNfax3u0iaQhtdkO2XcK94edIf2s_dNWcJUPLNW6y7zraT7r8pTlfJ30aPW-4WCHHc9G-BQjkgpK42E7t6oacVvO4q7pAymTUHF3KvzYUBEwukOFhF2yzHwjq2rYaS/s320/Blynk1.png" width="180" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8Rwgrm8eqbqSm1QTWItDr4iMoeNcPlqtfiGKT05fBsh2pae1uCURRgYOJimyBcq6EjVBUSOaZg-B8ruZVYynVcgGlXZjdORRSa5gcFLO2GadiNLYw5ryqWdIbmeaf0AByN45AkNbsmF0D/s1920/Blynk8.png" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="1080" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8Rwgrm8eqbqSm1QTWItDr4iMoeNcPlqtfiGKT05fBsh2pae1uCURRgYOJimyBcq6EjVBUSOaZg-B8ruZVYynVcgGlXZjdORRSa5gcFLO2GadiNLYw5ryqWdIbmeaf0AByN45AkNbsmF0D/s320/Blynk8.png" width="180" /></a></div></div><br /><span style="line-height: 24.5333px;"><br /></span></span></div><div><span style="font-size: 21.3333px; mso-bidi-font-weight: normal;"><span style="line-height: 24.5333px;"><br /></span></span></div><div><br /></div><div><span style="font-size: 21.3333px; mso-bidi-font-weight: normal;"><span style="line-height: 24.5333px;"><br /></span></span></div><div><span style="font-size: 21.3333px; mso-bidi-font-weight: normal;"><span style="line-height: 24.5333px;"><br /></span></span></div><div><b style="mso-bidi-font-weight: normal;"><span style="font-size: x-large; line-height: 24.5333px;">Circuit Diagram:</span></b></div></div><div><b style="mso-bidi-font-weight: normal;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTGTBvXxJTFxmcHzCPbZP7khx9Vi2eqqcdITgrKFtnbkVlM2YYE_sv2fzXPqln3g_iMX7et7qUxxqbUaytgDLejbchN-6H0jzsnbP8a_xP3xAQTVi7LiRvMEcD5gl0X7q1sli_RILR9nUV/s1857/IOTMQ4ESP8266_bb.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="1041" data-original-width="1857" height="358" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhTGTBvXxJTFxmcHzCPbZP7khx9Vi2eqqcdITgrKFtnbkVlM2YYE_sv2fzXPqln3g_iMX7et7qUxxqbUaytgDLejbchN-6H0jzsnbP8a_xP3xAQTVi7LiRvMEcD5gl0X7q1sli_RILR9nUV/w640-h358/IOTMQ4ESP8266_bb.jpg" width="640" /></a></div><span style="font-size: x-large;"><br /><span style="line-height: 24.5333px;">Code:</span></span></b></div><div><b style="mso-bidi-font-weight: normal;"><span style="font-size: 16pt; line-height: 24.5333px;"><br /></span></b></div><div><span style="font-size: 21.3333px; mso-bidi-font-weight: normal;"><span style="line-height: 24.5333px;"><div>#define BLYNK_PRINT Serial</div><div>#include <ESP8266WiFi.h></div><div>#include <BlynkSimpleEsp8266.h></div><div>BlynkTimer timer;</div><div>char auth[] = "Auth Code";                                       //Auth Code from blynk</div><div>char ssid[] = "WiFi SSID";                                      //your WiFi SSID</div><div>char pass[] = "Password";                                       //Password of your wifi network</div><div><br /></div><div>int n;</div><div><br /></div><div>void setup()</div><div>{</div><div><br /></div><div>  Serial.begin(9600);</div><div><br /></div><div>  Blynk.begin(auth, ssid, pass);</div><div>  // You can also specify server:</div><div>  //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 80);</div><div>  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);</div><div>  pinMode(16,OUTPUT);</div><div>  pinMode(5,OUTPUT);</div><div>  timer.setInterval(1000L, sendUptime);</div><div>}</div><div><br /></div><div><br /></div><div>void sendUptime()</div><div>{</div><div>  Blynk.virtualWrite(V1, n);</div><div>  </div><div>}</div><div><br /></div><div>void loop()</div><div>{</div><div>  Blynk.run();</div><div>  timer.run();</div><div>  </div><div>  n=analogRead(A0);</div><div>  Serial.println(n);</div><div>  </div><div>  if(n>300)</div><div>  {</div><div>     digitalWrite(16,LOW);</div><div>    digitalWrite(5,HIGH);  </div><div>    WidgetLED led1(V0); </div><div>    led1.on();</div><div>    WidgetLED led2(V2); </div><div>    led2.off();</div><div>  }</div><div>  </div><div>  if(n<200)</div><div>  {</div><div>      digitalWrite(16,HIGH);</div><div>      digitalWrite(5,LOW);</div><div>      WidgetLED led1(V0);</div><div>      led1.off();</div><div>      WidgetLED led2(V2); </div><div>      led2.on();</div><div>  }</div><div><br /></div><div>}</div><div><br /></div><div><br /></div><div><br /></div><div><br /></div><h2 style="text-align: center;"><b>Video:</b></h2><div><span class="style-scope yt-formatted-string" dir="auto" face="Roboto, Arial, sans-serif" style="background: rgb(24, 24, 24); border: 0px; color: white; font-size: 13px; letter-spacing: 0.2px; margin: 0px; padding: 0px; white-space: pre-wrap;">MQ-4 Methane Gas Sensor - CNG Gas sensor </span><a class="yt-simple-endpoint style-scope yt-formatted-string" dir="auto" href="https://www.youtube.com/watch?v=eS1WW8hSqN4&t=122s" spellcheck="false" style="background-color: #181818; cursor: pointer; display: var(--yt-endpoint-display, inline-block); font-family: Roboto, Arial, sans-serif; font-size: 13px; letter-spacing: 0.2px; overflow-wrap: var(--yt-endpoint-word-wrap, none); text-decoration: var(--yt-endpoint-text-regular-decoration, none); white-space: pre-wrap; word-break: var(--yt-endpoint-word-break, none);">https://www.youtube.com/watch?v=eS1WW...</a><span class="style-scope yt-formatted-string" dir="auto" face="Roboto, Arial, sans-serif" style="background: rgb(24, 24, 24); border: 0px; color: white; font-size: 13px; letter-spacing: 0.2px; margin: 0px; padding: 0px; white-space: pre-wrap;"> MQ-4 Sensor with Arduino | Methane Gas Sensor | CNG Gas sensor </span><a class="yt-simple-endpoint style-scope yt-formatted-string" dir="auto" href="https://www.youtube.com/watch?v=69TWq76yS70&t=0s" spellcheck="false" style="background-color: #181818; cursor: pointer; display: var(--yt-endpoint-display, inline-block); font-family: Roboto, Arial, sans-serif; font-size: 13px; letter-spacing: 0.2px; overflow-wrap: var(--yt-endpoint-word-wrap, none); text-decoration: var(--yt-endpoint-text-regular-decoration, none); white-space: pre-wrap; word-break: var(--yt-endpoint-word-break, none);">https://www.youtube.com/watch?v=69TWq...</a><span class="style-scope yt-formatted-string" dir="auto" face="Roboto, Arial, sans-serif" style="background: rgb(24, 24, 24); border: 0px; color: white; font-size: 13px; letter-spacing: 0.2px; margin: 0px; padding: 0px; white-space: pre-wrap;"> MQ-4 Gas Sensor with ESP8266 and Blynk application | IOT Project </span><a class="yt-simple-endpoint style-scope yt-formatted-string" dir="auto" href="https://studio.youtube.com/video/guXOUc4TdK8/edit" rel="nofollow" spellcheck="false" style="background-color: #181818; cursor: pointer; display: var(--yt-endpoint-display, inline-block); font-family: Roboto, Arial, sans-serif; font-size: 13px; letter-spacing: 0.2px; overflow-wrap: var(--yt-endpoint-word-wrap, none); text-decoration: var(--yt-endpoint-text-regular-decoration, none); white-space: pre-wrap; word-break: var(--yt-endpoint-word-break, none);">https://www.youtube.com/watch?v=guXOUc4TdK8&t=109s</a></div><div style="text-align: center;"><b><br /></b></div><div class="separator" style="clear: both; text-align: center;"><iframe allowfullscreen="" class="BLOG_video_class" height="403" src="https://www.youtube.com/embed/guXOUc4TdK8" width="632" youtube-src-id="guXOUc4TdK8"></iframe></div><br /><div style="text-align: center;"><b>Image:</b></div><div><br /></div></span></span></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgd3CfSiuAZKGlGFL2XtHHZKr2xRwBSQTX-WbELi87TlSV-DV02jPwhD_VS1ZoCmpON0tsPxC8emdIOTEvZmBWKEJsShASmNL-xFxuV5qK2GYj0ltYfuu8HBnBGc025-Ecev4d0OemRDtp2/s1181/MQ-4+Gas+Sensor+with+ESP8266+and+Blynk+application++IOT+Project1.gif" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="692" data-original-width="1181" height="375" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgd3CfSiuAZKGlGFL2XtHHZKr2xRwBSQTX-WbELi87TlSV-DV02jPwhD_VS1ZoCmpON0tsPxC8emdIOTEvZmBWKEJsShASmNL-xFxuV5qK2GYj0ltYfuu8HBnBGc025-Ecev4d0OemRDtp2/w640-h375/MQ-4+Gas+Sensor+with+ESP8266+and+Blynk+application++IOT+Project1.gif" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br />

MQ-4 Gas Sensor with ESP8266 and Blynk application | IOT Project

  MQ-4 Gas Sensor : Monitor your home Gas leakage with your mobile phone. This sensor detects the concentration of methane and CNG gas in t...

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