ESP32 + UWB Module Issue
Need some advice regarding an ESP32 + UWB issue.
I have an ESP32 board with a UWB (Ultra-Wideband) DW1000 board. Initially, everything was working fine and I was able to flash code successfully. To test it, I connected the board to a power bank. It worked for some time, but then suddenly stopped working.
After that, I connected it back to my PC via USB, but I could no longer flash any new code. I kept getting the error: "No serial data received."
To troubleshoot, I connected an external power source to the 3.3V pin and GND, and the board started working again — the code was running correctly. Then I tried flashing new code via USB while keeping the external power connected, and it worked successfully.
Because of this, I suspect that when only USB is connected, it is no longer powering the ESP32 properly. My guess is that the LDO (Low Dropout Regulator) may have been damaged.
The power bank I used supports fast charging and can output up to 12V, so I'm wondering if that somehow damaged the regulator. I don't have a strong hardware background, so I may be completely wrong.
I noticed AMS1117 voltage regulators are commonly used on ESP32 boards. Do you think replacing it could fix this issue? Or is there something else I should check before replacing components?
Any help would be appreciated.