I started mucking about with ESPHome yesterday and setup a WROOM with an AHT22 temp/humidity sensor. Running the wizard and adding the configs is easy-peasy. I started to have issues as soon as I wanted to flash.

  • If the AHT22 is plugged in, I cannot flash the device over USB.
  • I can check the serial logs once the device is flashed and then plug in the AHT22 once the device is booted and get readings, but
  • Once I unplug the ESP32 from the serial port and plug it into a power supply, I got nothing. No network activity at all.
  • Unplug the AHT22, plug into the power source, wait a few seconds, plug in the AHT22 has seemed to work correctly this morning and HA is pulling data but I tried that last night a few times and it didn’t work – so unsure why it’s working this morning other than strange timing when I’m plugging the thing back in.

I am using the basic esp32dev firmware, which I am assuming works because it DOES work, eventually, but I’m not confident I’m using the right base but I cannot figure out which one to use.

  • Aniki 🌱🌿@lemm.eeOPEnglish
    23·
    9 months ago

    I think you nailed it. It explains both the issues flashing and booting. I’ll have to muck about with other pins and see if that fixes it.