I have added 2200uF directly across the 5V pins. It is powered by the (short, heavy) USB cable.

I am using the ESP32-WROOM S3 development board. I have extra capacitance on the power supply. I have tried 3 different USB cables (all short). I have tried 3 different computers. The serial port is correct.
When I try to program the part, it always fails in the same way.

The swquence is ;

test ...

I followed the web server example (STation Mode) given by
https://randomnerdtutorials.com/esp32-web-server-arduino-ide/

My goal is to turn the on-board LED ON when a WiFi connection is established, and turn it back OFF
when the connection drops or disappears.

I have no trouble turning on the ...

Most handheld R/C controllers operate at 2.4Ghz. I'm wondering if it would be possible to "listen" to their output. The data is one-way only (TO the ESP32), and would probably have to be done in a "promiscuous" mode, since the R/C controllers are usually "bound" to one receiver only. My application ...