(LEGACY - not compatible with current platform) Control Arduino Mega and nodeMCU with Blynk

Important: This tutorial uses a legacy Blynk app that is no longer developed or supported. The flow described here will not work in the current version of the app.

Please see the links to the new Blynk platform below. Legacy users need to create a new account to use the new platform.

Download Blynk mobile apps:

Have questions? Ask at our forum:

[kingshahzad]

What a crystal clear explanation by a smart lady? Hats off

[Dialbist]

Как приятно, когда красивая девушка и разбирается во всем этом)

[maccarinaferriro]

master of blynk(being commercial is impressive)

[harshitjolly]

Perfectly explained from basic to how it functions👌👌

[alidabbaghian]

Thanks for sharing it's very helpful. I am grateful for your support.

[robinkam]

Wow, what a stunning beauty! You make Blynk sexier! :-p

[muhannadtraifi]

My God My Lord Give me an Arduino Wife like this one .

[РомаКириченко-шг]

Nice tutorial! Nice app!
Real fast start with Blynk)))

[hubertmargreiter]

A really helpful explanation, thanks.

[hendryzubair]

So many beutyfull arduino out there, i love you arduino

[Luismaia]

Very nice explaind but how to get 2 button but control for ex, 4 diferent pins at the same time to turn Off or turn On ?

[SantaDragon]

I am impressed ... I suggested a make up tutorial xD

[manhlephu]

Thank you so much
Guider so beautiful
And this app really easy to use

[alincimpoca]

Please make this tipe of videos (short tutorials) for any options available on blynk.

[corylin]

I wanna ask you a question. How can I do for controling one relay or led, using 3 or more cellphone (the all sketch, show only one token key)? by the way, you look absolutely stunning

[ptpandian]

Useful thanks.
Could please share tutorials regarding Arduino Uno + Nodemcu + Blynk app? Thank you

[weekendprogrammer]

Hello, that was a nice tutorial. In that, you have used ethernet to connect the Mega and you have separately programmed both the boards, instead, can we connect the Mega through nodeMCU (acting as rourter) and connect to Blynk and program both at once or program them separately and connect to work as one whole unit.

[RelentlessHomesteading]

I'd like to see tutorials on combining receipt of streaming video with the buttons and other Blynk controls overlaid over the top.
My application requires getting camera feed and reacting to control remote mechanisms.
Thanks.

[hkiceman]

I'm having a problem, how Blynk control a servo motor to turn ? Need to. add outside power for 5V?
I see NodeMCU just had 3.3V output, thx for this video

[etiennegrix]

Can you use the esp 8266 with wi fi only on your Android without Internet