Only able to run with Serial monitor opened?

[jlutzwpi]

Hello again, really enjoying this code. It works great. Seeing 20 fps being recorded to SD. However, it looks like the webserver only starts up when a Serial monitor is opened. I would like to try to a battery-powered solution where I'm not connected via USB-C with a Serial monitor open. Is there a way to disable that? Typically it's a while(!Serial) call but there is a whole logging system so not sure if a similar command is issued elsewhere. Thanks!

[s60sc]

Nothing to do with app. Hardware issue?

[jlutzwpi]

OK, found the issue: had to comment out the following:

if (!strlen(ST_SSID)) wlStat = WL_NO_SSID_AVAIL;
  else {
    while (wlStat = WiFi.status(), wlStat != WL_CONNECTED && millis() - startAttemptTime < 5000)  {
     //comment out these lines to run without Serial monitor open
      //Serial.print(".");
      //delay(500);
      //Serial.flush();
    }
  }

I think it is just the Serial.flush() that causes the dependency because there are other Serial.println's throughout the code and I can now connect without the Serial monitor open.

[s60sc]

Appears to be an S3 specific problem
try

#if !CONFIG_IDF_TARGET_ESP32S3
      Serial.flush();
#endif

[s60sc]

There is an existing arduino-esp issue

does the following work

if (Serial) Serial.flush();

[jlutzwpi]

Huh, how about that? I loaded the MCU into my model rocket payload already, so I'll give that a try post-launch. Thanks for digging that up. I just commented it out for the time being since I didn't really need that debug capability if I'm running battery-powered. Thanks again!

[s60sc]

new 8.7.4