I am working on a web based irrigation system, and I need temperature and humidity for the same; I am using sensor: DHT11 for that, and I am getting output in the Arduino IDE, but I want it on my website (i.e. a PHP webpage).
How can I do it? I have refereed to this link but I am neither getting any error nor any output.
Refer this link Posting data from arduino to php
Below is the jist of sending data to server
h = (int) dht.readHumidity();
t = (int) dht.readTemperature();
data = "temp=" + String(t) + "&hum=" + String(h);
if (client.connect("your server ip",80))
{ // REPLACE WITH YOUR SERVER ADDRESS
client.println("POST filepath.php HTTP/1.1");
client.println("Host: xxx.xxx.xxx.xxx"); // SERVER ADDRESS HERE TOO
client.println("Content-Type: application/x-www-form-urlencoded");
client.print("Content-Length: ");
client.println(data.length());
client.println();
client.print(data);
}
On the other hand, you have to create a server side script.
client.println("Content-Type: application/x-www-form-urlencoded"); What does the application/x-www-form-urlencoded do?1- Make sure you have an Apache server on your machine if you are testing it locally.
2-you need to setup a SQL DB ,
3- create your PHP scripts which will call the PHP script:
for example
client.println("GET /ethernetSend/index.php?baynumber="+Bay+"&vacant="+vacant+"&submit=Send+Sensorvalues HTTP/1.1");
you may refer to the Web client example by David A. Mellis it will be more than a start point for you.
