Unable to access a websocket using ESP8266 (Using Arduino IDE)

Question

I been trying to get my ESP8266 to connect to a websocket, but no luck so far. Things that are ruled out are:

The ESP8266 is connected to WiFi and has access to Internet (checked using a HTTP request).
Not a problem with the socket server, I spun up my own websocket server and it was not hit.
Tried port 80 and 443.

My code is as follows, keeps printing

Not Connected!

:

#include <Arduino.h>
#include "WebSocketClient.h"
#include "ESP8266WiFi.h"
    
WebSocketClient ws(true);
    
void setup() {
  Serial.begin(115200);
  WiFi.begin("SSID", "PASSWORD");
    
  Serial.print("Connecting");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}
    
void loop() {
  if (!ws.isConnected()) {
    ws.connect("echo.websocket.org", "/", 80);
    Serial.println("Not connected!");
  } else {
    ws.send("hello");
    
    String msg;
    if (ws.getMessage(msg)) {
      Serial.println(msg);
    }
  }
  delay(500);
}

ocrdu · Accepted Answer · 2022-07-25 08:55:37Z

2

WebSocketClient ws(true); tries to connect securely and uses WiFiClientSecure in stead of WiFiClient. This will probably require specifying a certificate or some such.

Try WebSocketClient ws(false); to see if that works (tries to force an insecure connection).

edited Jul 25, 2022 at 8:55

answered Oct 22, 2020 at 17:10

ocrdu

2,1836 gold badges18 silver badges23 bronze badges

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

3 Comments

Deepak R Over a year ago

Thanks, this solved it. I had been scratching my head whole day !

Deepak R Over a year ago

I ran into a new problem now, hope you don't mind helping me! I got a server running at link and it works fine, checked using link. But I am once again unable to access the server using the same code which worked for wss://echo.websocket.org.

ocrdu Over a year ago

No time atm, sorry, just a few tips: use port 80 if you can, use ws: for unsecure and wss: for secure, and maybe pose a new question here.

Collectives™ on Stack Overflow

Unable to access a websocket using ESP8266 (Using Arduino IDE)

1 Answer 1

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related