SOLVED iI found that pins EN and GPIO0 had a voltage level of 4,2 volts when serial monitor was not running (this is a voltage that should seriously damage the ESP32) so i have tried to put a resistor of beteen 470R and 1K beetwen RTS and GPIO0 and GND and that forces "gently" the logical level of t...

I have an strange problem. I created a program in wich i use several libraries like FasLED, Led 7 segments drivers, time.h and it worked perfectly until i disconnected the board from the computer and connected to an standard USB power supply. After many tests what I have found is that if the ESP32 i...