sensors mesh

Hi, I want to build an mesh of temperature sensors, on in each division of my home. My question is what tipe of tech to use. Should i use simple 433 tx rx that are cheap Or an wi fi ESP8266 that is also very cheap? I like better the wi fi because that way i can send data frommeach sensor to an mysql. With the 433 i need to send to a main arduino and then from there to mysql...

Any opinions?

This article is a fair place to start.

Another view on the same concept.

There are lots of Internet blog entries on this subject. The two articles above should give you some terminology to search upon.

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