I am trying to make a yaml-file for ESP32-s3-wroom-1, but I am not able to make it work. Problem is that the device will not get an ip-adderss. I am using the ESPHome utility on my Windows 11 desktop, and I am running version 2025.12.0. I need a basic yaml file just to be able to connect to the network - when this is working, I can start to put in more stuff.
I have tried to use some of the yaml-files I have found on this forum, and also asked ChatGPT, but it looks like the s3 variant is a bit difficult. The c3 variant works without problems.
Turned out the access point was the problem. Low security blocked ASPHome. Worked without any problem using Tasmota, so I thought that my yaml file was wrong.
Ulf, is this the first time you are flashing that particular ESP32-S3 with ESPHome ? have you got it connected to your Windows PC via USB or through Wi-Fi ?
The first time you load ESPHome onto an ESP32 is has to be via serial (USB) connection. After that it will be able to be found and updated over wi-fi.
I am so sorry for waisting your time. I suddenly got a bright ID. I changed the access point I was using with a newer one with better security, and then my yaml file worked with no issues. This is after several days struggelig to make it work!
You may find recent changes have improved functionality and reliability, and a careful perisal of update change logs may tempt you to keep up to date in all your software.