ESP8266 Community Forum

- Fri Sep 30, 2016 11:11 pm #55943 I'm beginner but, I see this in your code:

Code: Select allif (now() >= 180) {
ESP.restart(); //why don't you work?!?
}

Doesn't that reboot the ESP every 3 minutes ?

- Sat Oct 01, 2016 2:50 am #55944

If you are receiving 'electrical shocks', you have a very serious health issue.

LOL, sorry, I am not english, so perhaps I used an expression too strong .
Put a 9V battery on your tongue, you can feel an electrical shock.
The one I feel on my board is about 1/3 of power than a 9V battery on the tongue.
Could you point me to some examples using delay(0) or yeld?
I am resetting the board every 10 minutes in this moment... and it is working... but it is really bad.

Thx again

.luca

- Sat Oct 01, 2016 10:47 am #55951

I'm beginner but, I see this in your code:

Code: Select allif (now() >= 180) {
ESP.restart(); //why don't you work?!?
}

Doesn't that reboot the ESP every 3 minutes ?

Yes, now I changed it to 600... it's working now, but I do not like this solution.

- Mon Oct 03, 2016 9:23 am #56005

Could you point me to some examples using delay(0) or yeld?
I am resetting the board every 10 minutes in this moment... and it is working... but it is really bad.
.luca

Surely,
My basic non-RF sketch still must deal with the delay(0) issue to keep the WDT petted.

The solution often is a bit of play to find the right spot(s)... you must know your code and understand the length of time a function takes. In the worst conditions, you will just need to print millis() at various locations and determine the time delta... remember, you should allow the RF section to breath every 50mS (maximum.)

In the code below, yield() is placed in the loop() to "pet the watch dog" right before a rather lengthy function is execute and right after a Print. (I may have gotten away with just one, but the two together provides rock-solid stability.)

Code: Select allvoid loop() {
    static unsigned long l = 0;                     // only initialized once
    unsigned long t;                                // local var: type declaration at compile time
   
    t = millis();

    if((t - l) > 5000) {                            // update temp every 5 seconds
        analogSample(); yield();
        webSocket.sendTXT(socketNumber, "wpMeter,Arduino," + temp_str + ",1");
        l = t;                                      // typical runtime this IF{} == 300uS - 776uS measured
        Serial.print( ADCvalue);Serial.println(": " + temp_str + "F");
        yield();
    }

    server.handleClient();
    webSocket.loop();
}