How to make a home automation system using the Nodemcu ESP8266 board and the new Blynk app

In this video, we will learn how to make a home automation system using the Nodemcu ESP8266 board and the new Blynk application. I used a two-channel relay module for that. You can use any other relay module.

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How to make a home automation system using the Nodemcu ESP8266 board and the new Blynk app

***Names of components.
***step by step.
***Make it easy.

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( Source code and circuit diagram )
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Components list (Our store -- SriTu Hobby)
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3.Bulb holder x 2 --
4.Bulb x 2--
5.Plug top x 1--
6.Wires --
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Components list (Amazon)
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3.Bulb holder x 2
4.Bulb x 2
5.Plug top x 1
6.Wires
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[建中趙-dt]

Thank you for your teaching .It's very helpful.

[Vinay._.]

i decided to set this circuit at main power board for fan and tubelight is there any issue while using manual switches alternatively, please needed reply.

[adityavenkateshwaran]

You have created a fantastic video. My question to you is that, is it safe to connect 5V DC to NodeMCU, because as far as I know, NodeMCU works on 3.3V Power supply. Do correct me if I am wrong🙂

[kamarsjahpoh]

Thank you for your video i learned it and will try to make this project, your step by step video with in website is very clear.👍

[maddd]

what power supply that you connected to the nodeMCU and where can I buy it

[priyanshdhankar]

SIR CAN I USE 9V BATTERY INSTEAD OF 5 EXTERNAL SUPPLY . THE MACHINE YOU USED IS NOT AVAILABLE ???
SIR PLS REPLY

[ALTechnology_ThinethRamanayaka]

Thank you sir it's work well. This helps me a lot. thank you very much.

[QuickBytesX]

sir In this project when I turn on the first relay at same time esp8266's Led is also turn on and press again both are off. WHY?

[synchronousmotor]

no such file in directory is showing up as i compile the code...whats wrong

[jasonbourne]

When i'm switching one of the buttons 'ON' both lights turn on. When both buttons are 'ON' or 'OFF' then neither one of the lights are ON. Can you help me

[rutujad]

So we can operate through blynk app even far from the devices

[mohammedswalih]

Is it possible to power esp using relay by connecting to AC current

[realistic_playz]

Hello Sir.. First-of-all Thanks for this marvelous video.. but i didn't understand a thing. That is at 11:03 where did you connect them ? Please help by saying sir.

[barskuyas]

I haven't used the blynk app for a long time and the new version is very confusing. Thanks to your video, I was able to do my project easily. I also like other content on your channel, i subscribed. Thanks for everything my friend and good luck 🙂

[rebelle]

0:46 bro my esp isn't going in !! what should i do now?

[Lazydude]

The output of nodemcu is only 3.3 then how the relay got power?

[rebelle]

bro & arduino IDE in tool section Board, there is no option of selecting ESP8266 Board (3.0.11) Please help

[muhammadnor]

Thank you sir, I really like this, how to add program code to control 4 relays, and please make a push button to control it manually.

[boltariyo]

I have done all the necessay setup with the blynk app configuration with my wife details in the ide code, my nodemcu is connecting to my hotspot but the blynk keep showing offline, please i need help with it

[abhisheksunil.]

Bro the hotspot is not connecting to the esp8266 it's saying leaving hard resetting via rts pin