Hey guys!
I've been messing about with the ESP8266 the last few days and the result looks pretty promising.
So far, I've only got a proof of concept going, but it shows that it is doable.
https://www.youtube.com/watch?v=U6baOAZxDJU
I show here that it is possible to reflash the STC as well as interface with the communication version of the firmware (read/write EEPROM, read temperature and relay states).
This means that for about $5 hardware (not counting the USB serial module) it is possible to upload new firmware, start/stop profiles, set profiles, log temperatures, and more. And it is small enough that it could fit inside the STC.
I'd like to design a PCB for this (it will be pretty simple) and put it on OSH park, so it is easy to order all the things needed to build a professional looking thingy, that just plugs in to the STC programming header. Anyone out there interested in helping out? I've never designed PCB's before...
I think this can become something pretty cool