pravi.khm@gmail.com wrote: ↑

Wed Apr 03, 2019 6:04 am

adafruit

The magic word. I find many, not all, Adafruit libraries will cause the ESP32 to fault in some form or fashion.
Have you tried disabling all libraries and then one at a time, reenable each library one at a time to find the fault. I'd start with Adafruit first.

You're saying that I can harm the PC if I connect the ESP directly to it via a USB Cable ? I never thought of that. I have experienced the 5V regulator supplying the ESP32 5V, deciding to put out a higher voltage, than 5V. If you look at the ESP32 schematic, you'll see that the 5V from the USB plug...

Have you tried holding down the EN button during sketch upload? I found some but not all ESP's require the EN button to be held down before and until the upload has started. That is till, I added a powered USB hub. Once I added in a powered USB hub the need for sometimes holding down the EN button d...

How does the ESP behave when a blank sketch is uploaded?

It might be time to logically eliminate lines of code till the issue goes away and then add them back, logically, till the issue returns.

My guess is that the ESP32 is dead. How, I've no idea.

I had a collection of 7805's that would last a day or two then do some whacked out cht. I found ESP32's blow as quick as fuses. Since then I keep 1 ESP32 and one WROVER-B around as a spare.

I have one ESP32 WROVER-B connected to 2 ESP32's. Power to the ESP32's is supplied through two 3.3V relays. The default state for the relays is off. The WROVER B powers the two ESP32's and their related circuits 400mS, after the WROVER-B has powered on. Once a second, over a CAN buss, the 2 ESP32's ...

Perhaps change this: Settings *_settings; .... setup(){ _settings = new Settings(); to this: Settings *_settings; _settings = new Settings(); .... setup(){ Serial.println(_settings->getID().c_str()); //PointA ………….. void functionCalledFromPointer(){ Serial.println(_settings->getID().c_str()); //Poin...

Yes, to that link being what I am 'talking' about. If I remember correctly, the string reserve buffer is created on the heap space instead of the stack space. In regards to the buffer, ring. Over all, freeRTOS is built in to the ESP32. One aspect of freeRTOS is the ability to use stream buffers ( ht...

and you should find this useful" https://www.freertos.org/a00106.html

and here is a task using a delay: #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "freertos/timers.h" #include "freertos/event_groups.h" #define ESP32_WROVER_LED1 27 // LED D4 #define ESP32_WROVER_LED2 0 // LED D3 #define ESP32_LED 2 #define TaskStack10K 10000 #define TaskCore1 1 ...