Marcus Parker

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10 years, 7 months ago.

Websocket reconnect?

I'm using a Nucleo F401 with a cc3000 shield and websockets to make my product internet of things. I have a problem where if the internet turns off the program gets stuck instead of carrying on. My basic code template looks like this:

#include "mbed.h"
#include "cc3000.h"
#include "Websocket.h"
#include "TextLCD.h
SPI spi(PA_7, PA_6, PA_5); //SPI connection(MOSI, MISO, SCK)
cc3000 wifi(PB_3, PB_4, PB_10, SPI(PA_7, PA_6, PA_5), "SSID", "password", WPA2, false); //irq, en, cs, spi,
Serial pc(PA_11, PA_12); 
TMP36GZ temperature(PA_0); //Analog in pin
Ticker tick;
TextLCD lcd(PC_8, PC_6, PC_5, PB_15, PB_14, PB_12); // rs, e, d4-d7

Websocket ws("ws://srelog.com:49153/"); 

void disp()
{
  lcd.cls();
  lcd.locate(0, 0); 
  lcd.printf("%3.2f", temp);
}

int main()
{
  char ws_recv[22]; //Receive from webserver

  if (wifi.connect() == -1)  
  {
    lcd.locate(0, 1);
    lcd.printf("No Internet 0   ");
  } 
  else
  {
    lcd.locate(0, 1);
    lcd.printf("IP: %s", wifi.getIPAddress());
  }

  if(ws.connect() == true)
  {
    lcd.locate(0, 1);
    lcd.printf("WS");    
  }
  else
  {
    lcd.locate(0, 1);
    lcd.printf("NO WS");  
  }

  tick.attach(&ISR_DisplayTick, 1);

  while(true)
  {
    temp = temperature.sample(); 

    ws.send(data); //where data is temp etc

    if(ws.read(ws_recv))
    {
      string check = ws_recv;
      //split string and put into seperate variables
    }
  }
}

I've tried: Putting the ws send and recieve into an if(ws.is_connected()) and having an wifi and ws reconnect

Taking the ws send and recieve out seems to solve it, does anyone know what could be wrong?

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