Hello
I tried WIFI Library example code "WiFi Web Client"
The original code connects to google.com. This worked perfectly fine on my hardware . I can see that in Serial Port.
I changed the code such that it connect to my localhost at Port 80, but it FAILS.
Because my overall goal is that the Arduino will send a floating point value to my server and a script on my server will post it to database.
SO I installed MySQL database, Apache webserver, PHP and PHPMyAdmin and configured everything.
And I checked that my Apache server is running. And in the httpd conf file
Listen to Port 80 is uncommented. Also I used ipconfig to get my ip address and changed the Example code to use my ip address , instead of google's ip address.
So I changed this code to connect to my localhost server (configured through Apache). Also if I type my id address in a browser , it shows me my index.html file. I also tested by typing in 127.0.0.1 that also shows me my index.html file.
How do I go about debugging the error that why it is not able to connect to my localhost.
/*
Web client
This sketch connects to a website (http://www.google.com)
using a WiFi shield.
This example is written for a network using WPA encryption. For
WEP or WPA, change the Wifi.begin() call accordingly.
This example is written for a network using WPA encryption. For
WEP or WPA, change the Wifi.begin() call accordingly.
Circuit:
* WiFi shield attached
created 13 July 2010
by dlf (Metodo2 srl)
modified 31 May 2012
by Tom Igoe
*/
#include <SPI.h>
#include <WiFi.h>
char ssid[] = "MYWIFINAME"; // your network SSID (name)
char pass[] = "MYWIFIPASSWORD"; // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0; // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
IPAddress server(192,138,26,1); // numeric IP for my server (no DNS)
//char server[] = ""; // name address for my server
// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
WiFiClient client;
void setup() {
//Initialize serial and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
// check for the presence of the shield:
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue:
while(true);
}
// attempt to connect to Wifi network:
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
delay(10000);
}
Serial.println("Connected to wifi");
printWifiStatus();
Serial.println("\nStarting connection to server...");
// if you get a connection, report back via serial:
if (client.connect(server, 80)) {
Serial.println("connected to server");
// Make a HTTP request:
client.println("GET /search?q=arduino HTTP/1.1");
client.println("Host:localhost");
client.println("Connection: close");
client.println();
}
}
void loop() {
// if there are incoming bytes available
// from the server, read them and print them:
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// if the server's disconnected, stop the client:
if (!client.connected()) {
Serial.println();
Serial.println("disconnecting from server.");
client.stop();
// do nothing forevermore:
while(true);
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
My code shows everything until "Starting connection to server..", but after that it just shows
"disconnecting from server."
It does not show "connected to the server".
Thanks
