@chromo23,
yes you are right, only +relais box and no more other hardware. USB port is via a USBC to USBA Adapter.
No, then it works as expected so I choose an externe PS.
@TD-er,
please take a look to the picture.
No, no external antenna but this is not a closed metal box. Front / Back / Top are printed with PLA (3D printed) and on the backside the antenna looks outside with around -61 to -65dBm, should be ok.
![IMG_6038D.jpg](./download/file.php?id=7059&sid=6b3cd500764ef2b1d33c8eb5111ccec2)
- IMG_6038D.jpg (352.7 KiB) Viewed 9209 times
ESP is powered via the 5V pin from a Meanwell SMPS 5V/5A
Yes, I found this info in some Espressif forum entries but all hints doesn't work (for me).
I think it the relays board on powering from cold, take to "much" voltage and takes the ESP in trouble (Assumption !!!) for correct WLAN init.
When powering it from warm (reset button) all works it should be.
Another observation ... when I powered up the ESP later (from the same PS) all is working as expected.
I don't know what to do for an boot log with external PS.
A normal log after pushing the the reset button make for me no sense because when I push the reset button (warm) all is working.
Any hints for al boot log with external PS are welcome, thanks.
![IMG_6038D.jpg](./download/file.php?id=7059&sid=6b3cd500764ef2b1d33c8eb5111ccec2)
- IMG_6038D.jpg (352.7 KiB) Viewed 9209 times