Membuat temp monitoring web based


Pagi ini terbangun dan iseng melanjutkan keisengan tadi malam yang sempat tertunda karena ngantukūüėõ akhirnya selesai juga, yang ingin membuat juga silahkan lihat petunjuk wiringnya seperti dibawah.

dht11Saya menggunakan arduino uno yang terhubung dengan arduino ethernet shield diatasnya, untuk gambar lengkap seperti gambar dibawahnya lagi, saya menggunakan sensor dht11 yang sudah ada sensor suhu dan kelembapannya sehingga dengan satu sensor tersebut kita dapat menampilkan suhu dan kelembapan berbarengan. Untuk koneksi jaringan komputernya saya menggunakan Access Point TP-LINK MR3020 yang saya setting mode WISP sehingga terhubung ke network saya dirumah secara wireless dan LAN koneksinya ke ethernet shield arduino saya. Seperti pada gambar ada satu resistor yang digunakan untuk pullup sebesar 10K.

Demikian keisengan hari ini semoga bermanfaat dibawah ini gambar arduino uno saya beserta ethernet shieldnya dan listing programnya dibagian paling akhir, selamat mencoba.

Screen Shot 2015-12-29 at 6.05.56 AM

Here’s the source code


#include <DHT.h>

#define DHTPIN 2     // what pin we're connected to

// Uncomment whatever type you're using!
#define DHTTYPE DHT11   // DHT 11
//#define DHTTYPE DHT22   // DHT 22  (AM2302)
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Connect pin 1 (on the left) of the sensor to +5V
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

DHT dht(DHTPIN, DHTTYPE);

#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0x90, 0xA2, 0xDA, 0x00, 0x23, 0x36 }; //MAC address found on the back of your ethernet shield.
IPAddress ip(192,168,1,2); // IP address dependent upon your network addresses.

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}

dht.begin();

// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}

void loop() {

// Reading temperature or humidity takes about 250 milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
float h = dht.readHumidity();
float t = dht.readTemperature();

// check if returns are valid, if they are NaN (not a number) then something went wrong!
if (isnan(t) || isnan(h)) {
Serial.println("Failed to read from DHT");
} else {
Serial.print("Humidity: ");
Serial.print(h);
Serial.print(" %\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.println(" *C");
}

// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");  // the connection will be closed after completion of the response
client.println("Refresh: 5");  // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<html>");

// output the value of the DHT-11
client.println("<H2>");
client.print("Humidity: ");
client.println("</H2>");
client.println("<p />");
client.println("<H1>");
client.print(h);
client.print(" %\t");
client.println("</H1>");
client.println("<p />");
client.println("<H2>");
client.print("Temperature: ");
client.println("</H2>");

client.println("<H1>");
client.print(t);
client.println(" ¬į");
client.println("C");
client.println("</H1>");

client.println("</html>");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
}
else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disonnected");
}
}

3 thoughts on “Membuat temp monitoring web based

  1. barru kurnia says:

    mas mau tanya, ip address nya itu bebas kan kita tentukan sendiri ? dan saat terhubung ke wireless tidak harus online kan? wireless nya hanya untuk menghubungkan saja ke client server ? terima kasih

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