this post was submitted on 04 Feb 2024
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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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ESPHome advanced troubleshooting (lemm.ee)
submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]
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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.

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[–] [email protected] -1 points 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.