Good morning,
He has such an idea, but I don’t know which board to choose. I would like to control the heating via the Thermostatic head about 24V using DS18S20 sensors. Does anyone have experience with which board to choose? About 8 relays about 15x sensors. I have a Raspberry Pi 5 with an SSD drive
I’ve used a Sonoff TH16 (has a 2.5mm socket for a DS18x20), a Sonoff 4CH (retrofitted a pull-up resistor for multiple DS18x20), and other Sonoff devices running Tasmota. Sonoff devices have a few types from mains powered to low-voltage powered, with the relay contacts being either mains or separated.
There are multiple “white label” boards out there, but the issue is the rate of change on the circuits. Some use ESP8* or ESP32* which work well with Tasmota/ ESPhome, however some use Beken CPUs which work with ESPhome.
Some also include an I/O expander which vary from “works” to “might work IF the factory had installed any firmware on the expander” and are basically eWaste.
Recommending “white label” kit is hard - the search names vary and what you get in the post may not match the picture enough for HA.
So, branded kit is more likely to work, but if you have the electronics experience and want to save money…
If this helps, 
this post!
I had in mind something that will be directly connected and powered by the Raspberry Pi 5.
Post a simple scheme of your circuit. I’m not able to understand:
simply thermostatic heads for 24V via a relay and via an entity from the DS18S20 (or another wireless sensor) of the temperature in the home assistant, I will control the temperature in the room
Sorry - not possible using stock HAOS due to a security decision:
HACS includes the removed GPIO driver, but you’re on your own.
Ok, I guess I understand now. So it is better to give it a separate ESP 32 with (x) relay… + esphome and a separate power supply.
I still found this
what about you?