I want to do is, I want to control wall ac switches with my android ,parallel to their normal functionality,I want to see their status on/off in my mobile and also able to change it on-off or off-on ,can you please help me
and the thing I want use is ESP8266,Relays,Arduino Mega,spdt,spst wall switches
Hi !
Do you have knowledge on electricity and electronics ? Do you understand what you need to do? Which components you must use? How to make schematic?
You must use switches like pushbuttons (without fixed contacts)! For parallel control (wall switch and mob app).
Use google or youtube, their you can find a lot of information for this project !
This is nice project. I don't have a time right now to do this, but I will do it also !
sudheerpnsc:
can you please help me
What help you expect? Finished schematic, code and mobile app? 
And why you posted this in "diplays"?
can you please help me
You might want to ask for help on this subject in the 'Project Guidance' section of the forum.
Don