GET request failed in Arduino-Uno

Question

I am trying to access a simple web page running in my Rpi-server using ESP8266 and Arduino.

I have refereed this similar SO question , but it's not the solution for my problem.

Here is my current Arduino Code :

#include "WiFiEsp.h"

// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(2,3); // RX, TX
#endif

char ssid[] = "RPi";            // your network SSID (name)
char pass[] = "raspberry";        // your network password
int status = WL_IDLE_STATUS;     // the Wifi radio's status

char server[] = "192.168.50.1";

// Initialize the Ethernet client object
WiFiEspClient client;

void setup()
{
  // initialize serial for debugging
  Serial.begin(9600);
  // initialize serial for ESP module
  Serial1.begin(9600);
  // initialize ESP module
  WiFi.init(&Serial1);

  // 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 WPA SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network
    status = WiFi.begin(ssid, pass);
  }

  // you're connected now, so print out the data
  Serial.println("You're connected to the network");
  
  printWifiStatus();

  Serial.println();
  Serial.println("Starting 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 /simple.html  HTTP/1.1");
    client.println("Host: 192.168.50.1");
    client.println("Connection: close");
    client.println();
  }
}

void loop()
{

  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");
}

Output:

Starting connection to server...
[WiFiEsp] Connecting to 192.168.50.1
Connected to server
[WiFiEsp] Data packet send error (2)
[WiFiEsp] Failed to write to socket 3
[WiFiEsp] Disconnecting  3

My simple.html looks like this.

<html>
    <body>

        <p>1</p>

    </body>
</html>

}

I accessed to this page from web browser and it shows the content properly. What is missing here?

Thanks in advance.

has the esp8266 strong enough power supply? 3.3V pin on Arduino can't supply necessary Amps for WiFi data send — Juraj
– Juraj, Commented Dec 29, 2017 at 8:46

Machavity · Accepted Answer · 2018-01-26 04:15:24Z

2

Try this line in your code

client.print("GET /simple.html  HTTP/1.0\r\n\r\n");

edited Jan 26, 2018 at 4:15

Machavity♦

31.8k27 gold badges97 silver badges108 bronze badges

answered Dec 28, 2017 at 9:11

MVSRI

1422 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

GET request failed in Arduino-Uno

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related