Arduino Powered Emission Control System

1#include <OneWire.h>
2#include <DS18B20.h>
3#include <Wire.h>
4#include  <Adafruit_Sensor.h>
5#include <Adafruit_BMP085_U.h>
6
7const byte ONEWIRE_PIN  = 2;
8byte sensorAddress1[8] = {0x28, 0xFF, 0x35, 0x26, 0x86, 0x16, 0x4, 0xF3};
9byte  sensorAddress2[8] = {0x28, 0xFF, 0x67, 0x20, 0x86, 0x16, 0x4, 0xEC};
10int g1,g2,g3,t1,t2,conv,perc;
11float  p1,p2;
12OneWire onewire(ONEWIRE_PIN);
13DS18B20 sensors(&onewire);
14Adafruit_BMP085_Unified  bmp = Adafruit_BMP085_Unified(10085);
15
16int thValue = 200;
17
18void setup()  {
19  sensors.begin();
20  Serial.begin(9600);
21  Serial1.begin(9600);
22  Serial2.begin(9600);
23  pinMode(22, OUTPUT);
24  pinMode(24, OUTPUT);
25  bmp.begin();
26
27}
28
29void  loop() {
30  tempRead();
31  readGas();
32  displaySensorDetails();
33  readProMini();
34  printSerial();
35  lcdDisplay();
36}
37
38
39void tempRead() {
40  sensors.request(sensorAddress1);
41  t1 = sensors.readTemperature(sensorAddress1);
42  while (!sensors.available());
43  sensors.request(sensorAddress2);
44  t2 = sensors.readTemperature(sensorAddress2);
45}
46
47void  readGas(){
48  g1 = analogRead(A0);
49  g2 = analogRead(A1) + 60;
50  g3 = analogRead(A2)  + 75;
51  if(g1>g2){
52    conv=1;
53    perc=(g3-g1)*100/g3;
54  }else{
55    conv=2;
56    perc=(g3-g2)*100/g3;
57  }
58  
59  if (g3 > thValue)
60  {
61    digitalWrite(24, HIGH);
62    delay(1000);
63    digitalWrite(24, LOW);
64    delay(1000);
65    alarm();
66  }
67  else {
68    digitalWrite(22, HIGH);
69    digitalWrite(24, HIGH);
70  }
71}
72
73void displaySensorDetails(){
74  sensors_event_t event;
75  bmp.getEvent(&event);
76  if (event.pressure)
77  {
78    p1=event.pressure;
79    p1=p1/1000;
80  }
81  else
82  {
83    Serial.println("Sensor  error");
84  }
85  delay(1000);
86}
87
88void readProMini(){
89  Serial1.flush();
90  while(!Serial1.available()){
91  }
92  Serial1.read();
93    String text =  Serial1.readStringUntil(13);
94    
95    if(text.startsWith("P")){
96      text  = text.substring(1);
97      float x = text.toInt();
98      if(x>900){
99        p2=x/1000;
100      }      
101    }
102}
103
104void printSerial(){
105  Serial.print(g1);
106  Serial.print("  ");
107  Serial.print(g2);
108  Serial.print("  ");
109  Serial.print(g3);
110  Serial.print("  ");
111  Serial.print(t1);
112  Serial.print("  ");
113  Serial.print(t2);
114  Serial.print("  ");
115  Serial.print(p1);
116  Serial.print("  ");
117  Serial.print(p2);
118  Serial.println("  ");
119}
120
121void lcdDisplay(){
122  printData("t0",t2);
123  printDataFloat("t1",p1);
124  printData("t2",t1);
125  printDataFloat("t3",p2);
126  printData("t4",conv);
127  printData("t5",perc);
128}
129
130void printData(String  id, int val){
131  Serial2.print(id);
132  Serial2.print(".txt=");
133  Serial2.write(0x22);
134  Serial2.print(val);
135  if(id=="t5"){
136    Serial2.print("%");
137  }
138  Serial2.write(0x22);
139  Serial2.write(0xff);
140  Serial2.write(0xff);
141  Serial2.write(0xff);
142  delay(100);
143}
144
145void printDataFloat(String id, float val){
146  Serial2.print(id);
147  Serial2.print(".txt=");
148  Serial2.write(0x22);
149  Serial2.print(val,2);
150  Serial2.write(0x22);
151  Serial2.write(0xff);
152  Serial2.write(0xff);
153  Serial2.write(0xff);
154  delay(100);
155}
156
157void alarm(){
158  tone(48,800);
159  delay(500);
160  tone(48,1500);
161  delay(500);
162  noTone(48);
163}
164