I have some projects where I am controlling a 220V socket via a relay.
Normally I used a power adapter for the ESP and 220V plug for the socket and it works.
Now I found power adapter to built on the board: https://www.amazon.de/dp/B07V7GHK51
I used this in several different projects now and it worked directly when connecting the output to VIN and GND.
BUT! After some time now one after the other is no more working and in every case it was the power adapter. There was no more output.
When searching for that issue, it seems I am the only one with this issue
Does anybody have an idea, why this is happening?
Is it necessary to protect the module from voltage peaks?
Thanks & Regards,