Gpio 18

1

Hi,

After programming the esp32 it works fine, but after rebooting all the settings are gone, and no leds are lit
Only a hard reset will bring it back

If i use gpio 18 instead of 12 it works fine and the settings stay programmed. I have several esp32 s

But with the latest ones i have that problem.

Is there someone with the same problem?

2

gpio 12 is a strapping pin and boot fails if pulled high at powerup. Whatever you have connected to it must be causing it to be pulled high. ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials

3

I was having a similar problem, losing Presets, Segments, until I found that my Arris/Eero router would not recognize a device with a (#), (.), (X) or capital letter in the devices name. I changed my ESP32-WROOM-2-32’s name from T.C.#1 to tc1 in >WLED >Config >WiFi Settings which seemed to solve the problem.

4

I’m also using GPIO17 instead of 18.