The transistor delay circuit may be helpful to learn some electronics basics. Let’s see how we can choose elements for the circuit, and how the delay depends on parameters of the elements.

Hi there,  @clemens just reminded me that I promised to drop some words about issues coming from insufficient or unstable power supply to ESP32-based modules and how to mitigate them. We researched this issue together with @tonke the other day, thanks!  Hint: If you are encountering problems like described here and you will not be able to make it work just by swapping the USB cable, a little amount of soldering might be involved.  Reference  With kind regards,  Andreas.