WIFI Weather station

I have made a weather station for a school project

Sep 14, 2020

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weather

wifi

Devices & Components

AA Batteries

DHT11 Temperature & Humidity Sensor (4 pins)

Wemos D1 Mini

Hardware & Tools

3D Printer (generic)

Soldering iron (generic)

Hot glue gun (generic)

Software & Tools

Arduino IDE

Project description

Code

The code of the weatherstation

c_cpp

1// include librarys
2#include <DHT.h>
3#include <ESP8266WiFi.h>
4#include  <ESP8266WebServer.h>
5
6// define the dht data pin
7#define dhtpin 2
8#define  dhttype DHT11
9// name of wifi
10#define ssid "WeerStation"
11// password  for wifi
12#define password "P@$$w0rd"
13
14// port number
15ESP8266WebServer  server(80);
16
17// store http request
18String header;
19
20// dht object
21DHT  dht(dhtpin, dhttype);
22
23// temp and hum var
24float temp;
25float hum;
26
27//  Current time
28unsigned long currentTime;
29// Previous time
30unsigned long  previousTime;
31// Define timeout time in milliseconds
32#define timeoutTime 2000
33
34//  Function to handle the root of the site
35void handleRoot() {
36  // Send a string  to the server
37  server.send(200,"text/html", sendHTML());
38}
39
40void  setup() {
41  // Begin the serial and DHT
42  Serial.begin(115200);
43  dht.begin();
44
45  // Connect to Wi-Fi
46  Serial.print("Connecting to ");
47  Serial.println(ssid);
48  WiFi.softAP(ssid, password);
49
50  // print ip
51  Serial.println("");
52  Serial.println("WiFi connected");
53  Serial.println("IP adress: ");
54  Serial.print(WiFi.softAPIP());
55
56  // This will check if someone tries to  connect to the root site
57  server.on("/", handleRoot);
58
59  // start server
60  server.begin();
61}
62
63void loop() {
64  // This will handle the client
65  server.handleClient();
66}
67
68// Construct the HTML for the webserver
69String  sendHTML() {
70
71  // Read the temperature and humidity
72  temp = dht.readTemperature();
73  hum = dht.readHumidity();
74
75  // This is the HTML for the site
76  String  ptr = "<!DOCTYPE html> <html>\
77";
78  ptr += "<head><meta name=\\"viewport\\"  content=\\"width=device-width, initial-scale=1.0, user-scalable=no\\">\
79";
80  ptr += "<title>Weer Station</title>\
81";
82  ptr += "<style>\
83";
84  ptr  += "body {";
85  ptr += "Text-align: center;";
86  ptr += "}";
87  ptr  += "</style>\
88";
89  ptr += "</head>\
90";
91  ptr += "<body>\
92";
93  ptr  += "<h1>Weerstation</h1>\
94";
95  ptr += "<h3>Temperature</h3>\
96";
97  ptr  += "<p>";
98  ptr += String(temp);
99  ptr += " *C</p>\
100";
101  ptr += "<h3>Humidity</h3>\
102";
103  ptr += "<p>";
104  ptr += String(hum);
105  ptr += "%</p>\
106";
107  ptr +=  "</body>\
108";
109  ptr += "</html>\
110";
111
112  return ptr;
113}
114

// include librarys
#include <DHT.h>
#include <ESP8266WiFi.h>
#include  <ESP8266WebServer.h>

// define the dht data pin
#define dhtpin 2
#define  dhttype DHT11
// name of wifi
#define ssid "WeerStation"
// password  for wifi
#define password "P@$$w0rd"

// port number
ESP8266WebServer  server(80);

// store http request
String header;

// dht object
DHT  dht(dhtpin, dhttype);

// temp and hum var
float temp;
float hum;

//  Current time
unsigned long currentTime;
// Previous time
unsigned long  previousTime;
// Define timeout time in milliseconds
#define timeoutTime 2000

//  Function to handle the root of the site
void handleRoot() {
  // Send a string  to the server
  server.send(200,"text/html", sendHTML());
}

void  setup() {
  // Begin the serial and DHT
  Serial.begin(115200);
  dht.begin();

  // Connect to Wi-Fi
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.softAP(ssid, password);

  // print ip
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP adress: ");
  Serial.print(WiFi.softAPIP());

  // This will check if someone tries to  connect to the root site
  server.on("/", handleRoot);

  // start server
  server.begin();
}

void loop() {
  // This will handle the client
  server.handleClient();
}

// Construct the HTML for the webserver
String  sendHTML() {

  // Read the temperature and humidity
  temp = dht.readTemperature();
  hum = dht.readHumidity();

  // This is the HTML for the site
  String  ptr = "<!DOCTYPE html> <html>\
";
  ptr += "<head><meta name=\\"viewport\\"  content=\\"width=device-width, initial-scale=1.0, user-scalable=no\\">\
";
  ptr += "<title>Weer Station</title>\
";
  ptr += "<style>\
";
  ptr  += "body {";
  ptr += "Text-align: center;";
  ptr += "}";
  ptr  += "</style>\
";
  ptr += "</head>\
";
  ptr += "<body>\
";
  ptr  += "<h1>Weerstation</h1>\
";
  ptr += "<h3>Temperature</h3>\
";
  ptr  += "<p>";
  ptr += String(temp);
  ptr += " *C</p>\
";
  ptr += "<h3>Humidity</h3>\
";
  ptr += "<p>";
  ptr += String(hum);
  ptr += "%</p>\
";
  ptr +=  "</body>\
";
  ptr += "</html>\
";

  return ptr;
}

The code of the weatherstation

c_cpp

1// include librarys
2#include <DHT.h>
3#include <ESP8266WiFi.h>
4#include
5  <ESP8266WebServer.h>
6
7// define the dht data pin
8#define dhtpin 2
9#define
10  dhttype DHT11
11// name of wifi
12#define ssid "WeerStation"
13// password
14  for wifi
15#define password "P@$$w0rd"
16
17// port number
18ESP8266WebServer
19  server(80);
20
21// store http request
22String header;
23
24// dht object
25DHT
26  dht(dhtpin, dhttype);
27
28// temp and hum var
29float temp;
30float hum;
31
32//
33  Current time
34unsigned long currentTime;
35// Previous time
36unsigned long
37  previousTime;
38// Define timeout time in milliseconds
39#define timeoutTime 2000
40
41//
42  Function to handle the root of the site
43void handleRoot() {
44  // Send a string
45  to the server
46  server.send(200,"text/html", sendHTML());
47}
48
49void
50  setup() {
51  // Begin the serial and DHT
52  Serial.begin(115200);
53  dht.begin();
54
55
56  // Connect to Wi-Fi
57  Serial.print("Connecting to ");
58  Serial.println(ssid);
59
60  WiFi.softAP(ssid, password);
61
62  // print ip
63  Serial.println("");
64
65  Serial.println("WiFi connected");
66  Serial.println("IP adress: ");
67
68  Serial.print(WiFi.softAPIP());
69
70  // This will check if someone tries to
71  connect to the root site
72  server.on("/", handleRoot);
73
74  // start server
75
76  server.begin();
77}
78
79void loop() {
80  // This will handle the client
81
82  server.handleClient();
83}
84
85// Construct the HTML for the webserver
86String
87  sendHTML() {
88
89  // Read the temperature and humidity
90  temp = dht.readTemperature();
91
92  hum = dht.readHumidity();
93
94  // This is the HTML for the site
95  String
96  ptr = "<!DOCTYPE html> <html>\
97";
98  ptr += "<head><meta name=\\"viewport\\"
99  content=\\"width=device-width, initial-scale=1.0, user-scalable=no\\">\
100";
101
102  ptr += "<title>Weer Station</title>\
103";
104  ptr += "<style>\
105";
106  ptr
107  += "body {";
108  ptr += "Text-align: center;";
109  ptr += "}";
110  ptr
111  += "</style>\
112";
113  ptr += "</head>\
114";
115  ptr += "<body>\
116";
117  ptr
118  += "<h1>Weerstation</h1>\
119";
120  ptr += "<h3>Temperature</h3>\
121";
122  ptr
123  += "<p>";
124  ptr += String(temp);
125  ptr += " *C</p>\
126";
127  ptr += "<h3>Humidity</h3>\
128";
129
130  ptr += "<p>";
131  ptr += String(hum);
132  ptr += "%</p>\
133";
134  ptr +=
135  "</body>\
136";
137  ptr += "</html>\
138";
139
140  return ptr;
141}
142

// include librarys
#include <DHT.h>
#include <ESP8266WiFi.h>
#include
  <ESP8266WebServer.h>

// define the dht data pin
#define dhtpin 2
#define
  dhttype DHT11
// name of wifi
#define ssid "WeerStation"
// password
  for wifi
#define password "P@$$w0rd"

// port number
ESP8266WebServer
  server(80);

// store http request
String header;

// dht object
DHT
  dht(dhtpin, dhttype);

// temp and hum var
float temp;
float hum;

//
  Current time
unsigned long currentTime;
// Previous time
unsigned long
  previousTime;
// Define timeout time in milliseconds
#define timeoutTime 2000

//
  Function to handle the root of the site
void handleRoot() {
  // Send a string
  to the server
  server.send(200,"text/html", sendHTML());
}

void
  setup() {
  // Begin the serial and DHT
  Serial.begin(115200);
  dht.begin();


  // Connect to Wi-Fi
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.softAP(ssid, password);

  // print ip
  Serial.println("");

  Serial.println("WiFi connected");
  Serial.println("IP adress: ");

  Serial.print(WiFi.softAPIP());

  // This will check if someone tries to
  connect to the root site
  server.on("/", handleRoot);

  // start server

  server.begin();
}

void loop() {
  // This will handle the client

  server.handleClient();
}

// Construct the HTML for the webserver
String
  sendHTML() {

  // Read the temperature and humidity
  temp = dht.readTemperature();

  hum = dht.readHumidity();

  // This is the HTML for the site
  String
  ptr = "<!DOCTYPE html> <html>\
";
  ptr += "<head><meta name=\\"viewport\\"
  content=\\"width=device-width, initial-scale=1.0, user-scalable=no\\">\
";

  ptr += "<title>Weer Station</title>\
";
  ptr += "<style>\
";
  ptr
  += "body {";
  ptr += "Text-align: center;";
  ptr += "}";
  ptr
  += "</style>\
";
  ptr += "</head>\
";
  ptr += "<body>\
";
  ptr
  += "<h1>Weerstation</h1>\
";
  ptr += "<h3>Temperature</h3>\
";
  ptr
  += "<p>";
  ptr += String(temp);
  ptr += " *C</p>\
";
  ptr += "<h3>Humidity</h3>\
";

  ptr += "<p>";
  ptr += String(hum);
  ptr += "%</p>\
";
  ptr +=
  "</body>\
";
  ptr += "</html>\
";

  return ptr;
}

Downloadable files

The layout of the weatherstation

Documentation

The pins to secure the top to the base

the top of the casing

The pins to secure the top to the base

The base of the casing

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