Best posts made by carlos

Many thanks Mikael

I didnt know it was possible to have a gateway with the two options. That is very interesting and perhaps it may be the best solution for my project.
May be for the actuators/relays I can use esp8266 as I will anyway have a lot of power available from the wall plug power supplier. Also wifi access is something I am more familiar. RF is something I have not used before.
For the temperature sensors which are located close to the actuators/relays I can still reuse the same esp8266.
For the rest of the temperature sensors I can use nRF24L01+ with batteries and this will allow me to not have cables hanging around. In general I would prefer to not use batteries so I dont need to bother replacing them periodically, however, after looking at the product you mentioned (sensebender) it seems batteries will last very long time and it looks easy to set up.

Hello Mikael.

Thanks to your help, I am getting closer to my final solution for a heating control project of my appartment. I am thinking in choosing a location for my esp8266 gateway in a room close to some of my sensors and actuators which could then be wired directly to this esp8266 circuit. This gateway will also have a RF component attached "nRF24L01+" and this will allow RF communication with the rest of the nodes.
for any temperature sensor nodes which I cannot wire to the gateway I found very interesting the sensebender micro you mentioned in other post.
For the radiator valve actuator I find very interesting a video on using a relay posted by petewill. I am also trying to understand the section about "AC-DC double solid state relay module" posted by Aproxx and Hex. I guess that module is meant to be used by lights rather than a water valve actuator which is more like a motor. My valve actuators require 230v, uses a maximum of 5 wats and they just have on/off possition. I hope I could use something like this AC-DC double solid state relay.
I am looking forward to receive the pieces I ordered and start playing around.

Thanks again
Carlos