I think it would be great if you could design a small esp8266-based switch module, possibly versions with dimmer as well, that can be installed in existing in-wall switches for EU/US standards. This way you can keep the existing light switch for manual control but add the possibility to remotely control the light switch via WiFi.
Similar modules are available today for z-wave and other wireless standards, this is an example of such a product:
@Deepesh : I have quite the same needs that Garry has exposed.
And I would like to keep the form factor of my (expensive) actual wall switch (espacially for my wife compliance :D)
What do you think technically about E77 solution ? does it really work ?
Does someone already try it ?
Hello Deepesh. thank you for this tip. But I can't solder wire where you show. I have some Sonoff RF and Sonoff basic. Seems to be R2 version and there are not made as shown. Could you help with these models ?