Hi. I notice that you are bringing out another version of the Sonoff TH (Temp / Humidity) I have several of your devices already and would like to know if I can retro-fit the TH functionality onto my existing Sonoffs? I would also like to know if you intend to add a light sensor? These would be good module add-ons if they were packaged suitably, like sensor pods.
The Sonoff TH has put on sale, please check here: https://www.itead.cc/smart-home/sonoff-th.html
We will have a Sonoff Dev version which can be programmed with your own firmware. Also, the Sonoff SV supports low power supply and secondary development.
No, case is not available. https://www.itead.cc/smart-home/sonoff-sv.html
Sorry, currently we do not plan to offer or sell case for development version.
On the Sonoff SV, what do you mean by 'Secondary Development'? Do you have documentation to explain?