![SOURCE CODE FOR MAILAUTOMATION:-
#include <dummy.h>
#include <Arduino.h> //header file for arduino
#include <ESP8266WiFi.h> //header file for wifi module
WiFiClient client;
String MakerIFTTT_Key ;
String MakerIFTTT_Event;
char *append_str(char *here, String s) {
int i = 0;
while (*here++ = s[i]) {
i++;
};
return here - 1;
}
char *append_ul(char *here, unsigned long u) {
char buf[20];
return append_str(here, ultoa(u, buf, 10));
}
char post_rqst[256]; char *p; char *content_length_here; char *json_start; int compi;
void setup()
{](https://image.slidesharecdn.com/gasleakagedetectionsystem-190528081918/85/Gas-leakage-detection-system-11-320.jpg)
![content_length_here = p;
p = append_str(p, "NNrn");
p = append_str(p, "rn");
json_start = p;
p = append_str(p, "{"value1":"");
p = append_str(p, "warning");
p = append_str(p, "","value2":"");
p = append_str(p, "Alert");
p = append_str(p, "","value3":"");
p = append_str(p, "Gas leakage in college kitchen");
p = append_str(p, ""}");
compi = strlen(json_start);
content_length_here[0] = '0' + (compi / 10);
content_length_here[1] = '0' + (compi % 10);
client.print(post_rqst);
}
Serial.println("your email has been sent");
}
void loop()
{
int Gas_pin;](https://image.slidesharecdn.com/gasleakagedetectionsystem-190528081918/85/Gas-leakage-detection-system-13-320.jpg)
![p = append_str(p, "Message from college");
p = append_str(p, "","value3":"");
p = append_str(p, "Gas leakage is detected");
p = append_str(p, ""}");
compi = strlen(json_start);
content_length_here[0] = '0' + (compi / 10);
content_length_here[1] = '0' + (compi % 10);
client.print(post_rqst);
}
Serial.println("Your message send...............");
Serial.println("Gas leakage is detected");
delay(7000); //delay time
}
else{
Serial.println("No gas"); //else condition
}
}](https://image.slidesharecdn.com/gasleakagedetectionsystem-190528081918/85/Gas-leakage-detection-system-15-320.jpg)
Gas leakage detection system
- 1. “GAS LEAKAGE DETECTION SYSTEM” By: Aashiq Ahamed N
- 2. INDEX 1. CHAPTER-1 ABSTRACT………………………………………………1 2. CHAPTER-2 HARDWARE REQUIREMENTS AND DESCRIPTION..2 3. CHAPTER-3 PROJECT DESCRIPTION ……………….…...................7 4. CHAPTER-4 SOFTWARE & SOURCE CODE DESCRIPTION ……..8 5. CHAPTER-5 SCREENSHOT………………….………………………14 6. CHAPTER-6 FUTURE ENHANCEMENT………….………………...16 7. CHAPTER-7 CONCLUSION………….………………………………16 8. CHAPTER-8 REFERENCE……………………………………………17
- 3. “GAS LEAKAGE DETECTION SYSTEM” CHAPTER-1 ABSTRACT The main aim of this project is to avoid the accident and death in the gas leakage explosion in house, hotels and industries. Domestically we use natural gas and it is very useful for burning purpose. If this gas is leaked in our kitchens, hotels or factories and not sensed in time, it may lead to fatal disaster, and may cause human and material loss. For this purpose we have developed “GAS LEAKAGE DETECTION SYSTEM”. This project comprises a gas sensing sensor for detecting the leakage of gas. The sensor will be activated automatically, when the leakage level increases. When the gas reaches the sensor, it is first ionized into its constituents and is then absorbed by the sensing elements. This adsorption creates a potential difference on the elements, which is conveyed to the processor unit in the form of current then the sensor will automatically send an alert email with the help of NODEMCU circuit. Need of the project: Around 62 people die every day due to fire accidents in India. Out of this 17% deaths are due to gas cylinder/stove burst. Safety systems helping people from gas burst are not easily available in the market. The proposed system will help in giving better protection to life and property.
- 4. CHAPTER-2 HARDWARE REQUIREMENTS NODEMCU Circuit NODEMCU is circuit and an open source IOT platform. It includes firmware for the ESP8266 Wi-Fi. It is based on LUA scripting language. NODEMCU type is single board multi controller. Its memory is 128kBytes. Its storage is 4Mbytes. Since NODEMCU is open source platform, the hardware design is open for edit/modify/build NODEMCU v3 is used. Wi-Fi modulo is ESP8266.
- 5. MQ2 SENSOR The MQ2 is a flammable gas and smoke sensor detects the concentrations of combustible gas in the air and output its reading analog voltage. Supply Input voltage is 5v. Sensitive to H2, LPG, CH4, CO, ALCOHOL, SMOKE, PROPANE. Analog Input and Digital Output can be received. The pins connections are made Vcc, Ground, Digital and Analog values. The sensitivity of the sensor can be adjusted by potentiometer.
- 6. REGULATOR7805 IC 7805ic is a family of self contained fixed linear voltage regulator integrated circuits The 78xx family is commaly used is electronic circuits requiring a regulated power supply due to their ease of due and low cost. IC7805 is a 5V voltage regulator that resticts the output voltage to 5V output for various ranges of input voltage. The maximum value for input to the voltage regulator is 35V and output is 5V. .
- 7. Jumper wires Jumper wires are simply wires that have connector pins at each end, allowing them to be used to connect two points to each other without soldering Jumper wires are typically used with bread broads. Variety of color, the colors don’t actually mean anything. This means that a red jumper wire is technically the same as a black one. Three versions are: Male to male Male to female Female to female
- 8. Bread board A breadboard is a construction base for prototyping of electronics. These are great units for making temporary circuits and prototyping, and they require absolutely no soldering. The breadboard has many holes into which circuit components like ICs and resistors can be inserted. It is used to build and test circuits quickly before finalizing any circuit design. It has totally 3 sizes available named as full, half, mini and contains no types.
- 9. CHAPTER-3 PROJECT DESCRIPTION:- OBJECTIVE OF THE PROJECT:- 1) To analyse the natural gas leakage with the help of sensor. 2) To design automatic NODEMCU based device for leakage detection. 3) The device will send an auto alert message through the email. This project comprises a gas sensing sensor for detecting the leakage of gas. The sensor will be activated automatically, when the leakage level increases. When the gas reaches the sensor, it is first ionized into its constituents and is then absorbed by the sensing elements which is then sent to the NODEMCU circuit in the form of electrical signal and further through programming/coding fed in NODEMCU, a signal will be sent to the peripheral components and a specific message will be sent to the email. The whole phenomenon can be easily understood by observing the following figure
- 10. CHAPTER-4 SOFTWARE DESCRIPTION:- For this project we have used the Arduino software. Arduino is an open-source electronics platform based on easy-to-use hardware and software. It consists of both a physical programmable circuit board (often referred to as a microcontroller) and a software, or IDE (Integrated Development Environment) that runs the computer, used to write and upload computer code to the physical board the environment is written in Java . Arduino boards are able to read inputs and turn it into an output. We can instruct the board what to do by sending a set of instructions to the microcontroller on the board. It is support the languages like python, C, C++, C#, java script. MINIMUM HARDWARE / SOFTWARE REQUIREMENTS:- CPU: Intel Core 2 Quad Q9550 RAM: 2 GB OS: Windows 7/ Windows 8.1/ Windows 10 FREE DISK SPACE: 3 GB
- 11. SOURCE CODE FOR MAILAUTOMATION:- #include <dummy.h> #include <Arduino.h> //header file for arduino #include <ESP8266WiFi.h> //header file for wifi module WiFiClient client; String MakerIFTTT_Key ; String MakerIFTTT_Event; char *append_str(char *here, String s) { int i = 0; while (*here++ = s[i]) { i++; }; return here - 1; } char *append_ul(char *here, unsigned long u) { char buf[20]; return append_str(here, ultoa(u, buf, 10)); } char post_rqst[256]; char *p; char *content_length_here; char *json_start; int compi; void setup() {
- 12. Serial.begin(115200); WiFi.disconnect(); delay(5000); // event delay time Serial.println("start.."); WiFi.begin("sowmi", "teddy276"); //in this wifi user name & password are given while ((!(WiFi.status() == WL_CONNECTED))) { delay(600); } Serial.println("Connected to WIFI"); if (client.connect("maker.ifttt.com", 80)) { //port number for http MakerIFTTT_Key = "Z_CVq_k088t08f-4PhI3K"; //key value for IFTTT MakerIFTTT_Event = "email"; // event triggering name as email p = post_rqst; p = append_str(p, "POST /trigger/"); p = append_str(p, MakerIFTTT_Event); p = append_str(p, "/with/key/"); p = append_str(p, MakerIFTTT_Key); p = append_str(p, " HTTP/1.1rn"); p = append_str(p, "Host: maker.ifttt.comrn"); p = append_str(p, "Content-Type: application/jsonrn"); p = append_str(p, "Content-Length: ");
- 13. content_length_here = p; p = append_str(p, "NNrn"); p = append_str(p, "rn"); json_start = p; p = append_str(p, "{"value1":""); p = append_str(p, "warning"); p = append_str(p, "","value2":""); p = append_str(p, "Alert"); p = append_str(p, "","value3":""); p = append_str(p, "Gas leakage in college kitchen"); p = append_str(p, ""}"); compi = strlen(json_start); content_length_here[0] = '0' + (compi / 10); content_length_here[1] = '0' + (compi % 10); client.print(post_rqst); } Serial.println("your email has been sent"); } void loop() { int Gas_pin;
- 14. int Gas_state = digitalRead(Gas_pin); //gas pin digital values if (Gas_state == LOW){ if (client.connect("maker.ifttt.com", 80)) { //port number for http MakerIFTTT_Key = "Z_CVq_k088t08f-4PhI3K"; //key value for IFTTT MakerIFTTT_Event = "email"; // event triggering name as email p = post_rqst; p = append_str(p, "POST /trigger/"); p = append_str(p, MakerIFTTT_Event); p = append_str(p, "/with/key/"); p = append_str(p, MakerIFTTT_Key); p = append_str(p, " HTTP/1.1rn"); p = append_str(p, "Host: maker.ifttt.comrn"); p = append_str(p, "Content-Type: application/jsonrn"); p = append_str(p, "Content-Length: "); content_length_here = p; p = append_str(p, "NNrn"); p = append_str(p, "rn"); json_start = p; p = append_str(p, "{"value1":""); p = append_str(p, "Alert"); p = append_str(p, "","value2":"");
- 15. p = append_str(p, "Message from college"); p = append_str(p, "","value3":""); p = append_str(p, "Gas leakage is detected"); p = append_str(p, ""}"); compi = strlen(json_start); content_length_here[0] = '0' + (compi / 10); content_length_here[1] = '0' + (compi % 10); client.print(post_rqst); } Serial.println("Your message send..............."); Serial.println("Gas leakage is detected"); delay(7000); //delay time } else{ Serial.println("No gas"); //else condition } }
- 16. CHAPTER-5 SCREEN SHOT OF THE PROCEDURE:- Selecting the board type The board type must be selected from this option for the proper functioning of the NODEMCU circuit otherwise the circuit will shows a compilation error. Source coding compiling During compilation it will show the syntax/logical errors but run time errors cannot be displayed while compilation.
- 17. Source coding uploading If there is no error in the coding we can upload the coding to the Arduino/NODEMCU board with help of USB cable. Source coding testing after uploading After uploading the coding in to the board we can test the program, whether it is working properly or not.
- 18. CHAPTER-6 FUTURE ENHANCEMENTS In the future days we are planning to modify this project by connecting this project to the main server from which we can send message/notifications to any one in any part of the world using the cloud computing technology and with IOT. Now we can send only mail to the chosen persons. When LPG cylinder is empty the cylinder booking will done automatically using IOT technology. CHAPTER-7 CONCLUSION This project is microcontroller based. The Gas sensor is used to detect LPG gas leakages in the kitchen. The sensor can also sense methane gas leakage in cars or service stations, storage tank environment. The sensor has excellent sensitivity combined with a quick response system.