ESP8266 Community Forum

- Fri Feb 19, 2016 7:47 pm #41488 I have a fairly simple sketch using ESP8266wifi that reads data from Thingspeak and sets a dry contact relay. In "setup" I use a standard wifi.begin() to connect to a WPA network and it connects just fine. The problem is that in order for me to use the ESP8266 it needs to reconnect to the wifi router again after there is any kind of wifi outage. The problem is it doesn't.

Is it supposed to reconnect automatically after a disconnect?

- Sat Feb 20, 2016 6:11 pm #41555 An easy solution is to check if the connection is still alive, if it is not, then wait a moment , the reboot. When starting it will go again through setup() and connect again. The wait is to make sure it does not too frequently.

- Tue Feb 23, 2016 1:01 pm #41740 Hi,

Here is what i use , works for me, maybe not perfect

Code: Select allvoid WIFI_Connect()
{
  digitalWrite(2,1);
  WiFi.disconnect();
  Serial.println("Booting Sketch...");
  WiFi.mode(WIFI_AP_STA);
  WiFi.begin(ssid, password);
    // Wait for connection
  for (int i = 0; i < 25; i++)
  {
    if ( WiFi.status() != WL_CONNECTED ) {
      delay ( 250 );
      digitalWrite(2,0);
      Serial.print ( "." );
      delay ( 250 );
      digitalWrite(2,1);
    }
  }
  digitalWrite(2,0);
}

...
...
..

void setup(void){
  pinMode(2, OUTPUT);
  Serial.begin(115200);
  Serial.println();
  WIFI_Connect();
...
..
..
}

void loop(void){
    if (WiFi.status() != WL_CONNECTED)
    {
      digitalWrite(2,1);
      WIFI_Connect();
    } else {
      digitalWrite(2,0);
    }
...
...
}


Hope will help.
Best regards

Use: ESP8266 ESP-07 ESP-12F ESP-14
Windows 10
Arduino IDE 1.6.13
ESP8266 2.3-RC-2 + git ESP8266 core

- Sun Aug 20, 2017 4:10 am #69320 write the WiFi.begin(ssid,pws) and status() in the same setup() in portion of loop(), just work.