Which RN-XV library to use?

Stephen Stuff

I spent a while going through lots of different WiFi libraries before I found one that made things easy. Eventually I’ve settled on dpslwk‘s version of the WiFly library here and there’s one big reason why:

The WiFlyClient class inherits from Client meaning it can be dropped in as a replacement for the standard Ethernet library.

That said, there’s still a little bit of work to do if you don’t want to use the shield as that uses SPI communication and without the shield, you’re stuck with normal uart. Here’s a modified version of the WiFly_WebClient that uses SoftwareSerial.

// (Based on WiFly's WebClient Example)
 
#include <SPI.h>
#include <WiFly.h>
#include <SoftwareSerial.h>
 
char passphrase[] = "yourpassphrase";
char ssid[] = "yourssid";
 
WiFlyClient client;
SoftwareSerial pin89Serial(8,9);
 
void setup() {
 
  Serial.begin(9600);
  pin89Serial.begin(9600);
 
  WiFly.setUart(&pin89Serial);
  WiFly.begin();
 
  if (!WiFly.join(ssid, passphrase)) {
    Serial.println("Association failed.");
    while (1) {
      // Hang on failure.
    }
  }  
 
  Serial.println("connecting...");
 
  if (client.connect("reddit.com", 80)) {
    Serial.println("connected");
    client.println("GET / HTTP/1.0");
    client.println();
  } else {
    Serial.println("connection failed");
  }
 
}
 
void loop() {
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }
 
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    for(;;)
      ;
  }
}

Upload that, open the serial console and you should see the HTTP output after a few seconds.