IoT Switch 

5v relays.work.with the mcu just fine.You can power the relay5v via the 5v pin.And the relay geta triggered by the 3.3v signal

Awesome. You made me inspired to start DIY IOT projects. Tonns of appreciation for your efforts.

Great project; much nicer solution than fastening the power strip on the wall within your reach (and your visitors' view)! Wish I could do this in my home, but I understand that you would burn my house down or electrocute me for pirating your creation. 😂

You should add strain relief to the mains (AC) cable, it can easily be pulled loose.

Danke hab es überlebt

nice sir please make more iot based projects

Hi, I have a question. can i power up a 5 volt 4 channel relay module with a 5 volt 0.7-0.8 mAh wall type charger, which is basically use for charge the simple mobiles. If yes, then how i connect, i mean what will be the circuit diagram. which wire will be connect with the vcc and which wire connect with the ground and which wire is connect with the ESP8286. OR, ESP8266 nodeMCU board 3.3volt is sufficient for 4 channel 5 volt relay? i am try to built a home automation project. Thank you very much. Please help me

Could you please share github link or code link so that i will try to replicate at my home ??

What was that interface you were using to make the button etc? Did you write your code or did you get help with an external application.

Hi. You seem very knowledgable... so question: i want to set up my home yard sprinkler, interior lights, etc. so that i can control them remotely on my smart phone/PC. Yes, there r a lot of products out there that do this via wifi. However, my wifi router at home occasionally needs a reboot (unplug and plug back in). I wont be able to physically do this rebooting while traveling in other countries for many months at a time. What are my options these days to alleviate this issue? Thanks!

but once you said relay works with 5v but in video it also get triggered with 3v.why?

Thanx for the project, but above all thanx for the coding which is short and simple! :D Is there a way how to add to this project another mechanical (normal) switch and what would be the difference in coding?

By which application u made the button on the lenova tablet

Have a look at Sonoff .. it's cheap and easy to load with custom firmware

add additional manual push button inside project

but for one small application we need to use one wifi transreviever which costs around 3000 rupees... its soo sad :(

Why dangerous?

How far?

sir can i have your e-mail id..?

where is sketch ?