Ethernet shield - weird symbol

Projects Programming
1

I have my etnernet shield installed on my arduino uno and I am doing some HTTP requests, however I encounter quite a few issues lately.
I am running the same code 3 times and I get 3 different results each time.
I dont understand how is that even possible.
I have made a slightly modfifyed version of the WebClient sample code,which continiously makes requests.

/*
  Web client

 This sketch connects to a website (http://www.google.com)
 using an Arduino Wiznet Ethernet shield.

 Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13

 created 18 Dec 2009
 by David A. Mellis
 modified 9 Apr 2012
 by Tom Igoe, based on work by Adrian McEwen

 */

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

// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
// 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(74,125,232,128);  // numeric IP for Google (no DNS)
char server[] = "www.google.com";    // name address for Google (using DNS)

// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192, 168, 0, 177);

// 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):
EthernetClient client;

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

  Serial.println("Setting up ethernet..");
  // start the Ethernet connection:
  while (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP, retrying..");
    // try to congifure using IP address instead of DHCP:
    //Ethernet.begin(mac, ip);
  }
 
}

void loop() {
   // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");
  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
    // Make a HTTP request:
    client.println("GET /search?q=arduino HTTP/1.1");
    client.println("Host: www.google.com");
    client.println("Connection: close");
    client.println();

    while (client.connected()) {
      char c = client.read();
      Serial.print(c);
    }

    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
  } 
  
  // if there are incoming bytes available
  // from the server, read them and print them:
  
}

The first time I connected to the server but got endless "..яяяяяяяяяяяяяяяяяяяяяяяяяяяяяяя"
as a response?Does anyone know what this is?
The second time I failed to connect to the ethernet..
After 3 unseccesful attemts I terminated the program.
The third time was a success, I kept making succesfull http get requests and got the correct response from the server, again containing яяяяяяяяяяяяяяяяяяяяяяяяяяяяяяя..

I attach the serial output from the 3 tries.

Does anyone know how can I keep making succesfull HTTP request over and over ?

result1.txt (14.2 KB)

result2.txt (182 Bytes)

result3.txt (12.2 KB)

2

Is your console open at 9600 bauds?

Also try to Use a different site that is not redirected to https

3

Yes it is open on 9600.
The website I am using for the project is non ssl, and still has the issue.

4

ah - I did not read your code fully, stopped at google and assumed the ssl issue

this is wrong:

   while (client.connected()) {
      char c = client.read();
      Serial.print(c);
    }

it only tells you there is someone connected, but not that data is ready. You need to check client.available() to ensure there is something to read