Temperature, humidity, and water level monitoring

1//-----------------------------------------------
2//Since Arduino can't  https, we need to use Pushingbox API (uses http)to run 
3//the Google Script (uses  https). Alternatly use Ivan's SecureWifi encryption
4
5
6#include <WiFi101.h>
7#include  "DHT.h"
8
9#define DHTPIN 6    // what pin we're connected to, pin1 is 5th  pin from end
10
11// Uncomment whatever DHT sensor type you're using!
12#define  DHTTYPE DHT11  // DHT 11
13//#define DHTTYPE DHT21  // DHT 21
14
15
16DHT dht(DHTPIN,DHTTYPE);
17
18const  char WEBSITE[] = "api.pushingbox.com"; //pushingbox API server
19const String  devid = "v8FF17EFF7B58B29"; //device ID on Pushingbox for our Scenario
20
21const  char* MY_SSID = "VIRGIN610";
22const char* MY_PWD =  "3745E496949E";
23
24
25int  status = WL_IDLE_STATUS;
26// if you don't want to use DNS (and reduce your sketch  size)
27// use the numeric IP instead of the name for the server:
28//IPAddress  server(74,125,232,128);  // numeric IP for Google (no DNS)
29
30int led1 = 1;
31int  led2 = 2;
32int led3 = 3;
33int led4 = 4;
34
35void setup() {
36    // initialize  the digital pins as an outputs.
37  pinMode(led1, OUTPUT);
38  pinMode(led2, OUTPUT);
39  pinMode(led3, OUTPUT);
40  pinMode(led4, OUTPUT);
41  
42  //Initialize serial  and wait for port to open:
43  Serial.begin(9600);
44  while (!Serial) 
45  {
46    ; // wait for serial port to connect. Needed for native USB port only
47  }
48
49  // check for the presence of the shield:
50  if (WiFi.status() == WL_NO_SHIELD)  {
51    Serial.println("WiFi shield not present");
52    // don't continue:
53    while (true);
54  }
55
56  // attempt to connect to Wifi network:
57  while  (status != WL_CONNECTED) 
58  {
59    Serial.print("Attempting to connect to  SSID: ");
60    Serial.println(MY_SSID);
61    //Connect to WPA/WPA2 network.Change  this line if using open/WEP network
62    status = WiFi.begin(MY_SSID, MY_PWD);
63
64    // wait 10 seconds for connection:
65    delay(10000);
66  }
67  
68  Serial.println("Connected  to wifi");
69  printWifiStatus();
70  dht.begin();
71  
72}
73
74void loop()  {
75
76   // Wait between measurements.
77  delay(10000);
78
79  //prefer to  use float, but package size or float conversion isnt working
80  //will revise  in future with a string fuction or float conversion function
81
82  int humidityData  = dht.readHumidity();
83  // Read temperature as Celsius (the default)
84  int  celData = dht.readTemperature();
85  // Read temperature as Fahrenheit (isFahrenheit  = true)
86  int fehrData = dht.readTemperature(true);
87  
88    // read the  input on analog pin 1:
89  int waterLevel = analogRead(A1);
90  
91  digitalWrite(led1,  LOW);
92  digitalWrite(led2, LOW);
93  digitalWrite(led3, LOW);
94  digitalWrite(led4,  LOW);
95  if (waterLevel > 10) {digitalWrite(led1, HIGH); }
96  if (waterLevel  > 250) {digitalWrite(led2, HIGH); }
97  if (waterLevel > 350) {digitalWrite(led3,  HIGH); }
98  if (waterLevel > 390) {digitalWrite(led4, HIGH); }
99  
100
101  //  Check if any reads failed and exit early (to try again).
102  if (isnan(humidityData)  || isnan(celData) || isnan(fehrData))
103  {
104    Serial.println("Failed to read  from DHT sensor!");
105    return;
106  }
107
108  if (isnan(waterLevel))
109  {
110    Serial.println("Failed to read from water level sensor!");
111    return;
112  }
113
114  // Compute heat index in Fahrenheit (the default)
115  int hifData  = dht.computeHeatIndex(fehrData, humidityData);
116  // Compute heat index in Celsius  (isFahreheit = false)
117  int hicData = dht.computeHeatIndex(celData, humidityData,  false);
118
119  Serial.print("Humidity: ");
120  Serial.print(humidityData);
121  Serial.print(" %\	");
122  Serial.print("Temperature: ");
123  Serial.print(celData);
124  Serial.print(" *C ");
125  Serial.print(fehrData);
126  Serial.print(" *F\	");
127  Serial.print("Heat index: ");
128  Serial.print(hicData);
129  Serial.print("  *C ");
130  Serial.print(hifData);
131  Serial.print(" Water Level ");
132  Serial.print(waterLevel);
133  Serial.println(" \
134");
135
136Serial.println("\
137Sending Data to Server...");  
138  // if you get a connection, report back via serial:
139WiFiClient client;  //Instantiate WiFi object, can scope from here or Globally
140
141    //API service  using WiFi Client through PushingBox then relayed to Google
142    if (client.connect(WEBSITE,  80))
143      { 
144         client.print("GET /pushingbox?devid=" + devid
145       + "&humidityData=" + (String) humidityData
146       + "&celData="      +  (String) celData
147       + "&fehrData="     + (String) fehrData
148       +  "&hicData="      + (String) hicData
149       + "&hifData="      + (String)  hifData
150       + "&waterLevel="   + (String) waterLevel
151         );
152
153      // HTTP 1.1 provides a persistent connection, allowing batched requests
154      // or pipelined to an output buffer
155      client.println(" HTTP/1.1");  
156      client.print("Host: ");
157      client.println(WEBSITE);
158      client.println("User-Agent:  MKR1000/1.0");
159      //for MKR1000, unlike esp8266, do not close connection
160      client.println();
161      Serial.println("\
162Data Sent"); 
163      }
164}
165
166
167void  printWifiStatus() {
168  // print the SSID of the network you're attached to:
169  Serial.print("SSID: ");
170  Serial.println(WiFi.SSID());
171
172  // print  your WiFi shield's IP address:
173  IPAddress ip = WiFi.localIP();
174  Serial.print("IP  Address: ");
175  Serial.println(ip);
176
177  // print the received signal strength:
178  long rssi = WiFi.RSSI();
179  Serial.print("signal strength (RSSI):");
180  Serial.print(rssi);
181  Serial.println(" dBm");
182}