Blynk with NodeMCU ESP8266- Web dashboard and Mobile App

In this video lesson, we’ll learn how to use the new Blynk with NodeMCU ESP8266. This step-by-step tutorial will walk you through the process of creating a template in the Blynk IoT Cloud Platform and write Arduino code for the ESP8266 Microcontroller. Later on, we’ll create a mobile app. Also, we will explore how to set up WiFi credentials so that NodeMCU ESP8266 will connect to Blynk Cloud. In the end, we’ll control LED connected to GPIO2 using Blynk Web dashboard as well as from Mobile App.

The Project will Break down into the Following Steps:
STEP 2 Install latest Blynk libraries into Arduino IDE
STEP 3 Write Arduino sketch to control Pin of an ESP8266
STEP 4 Install Blynk IoT App in Mobile Phone, Android, and iOS
STEP 5 Click "Add new device" and configure WiFi on ESP8266
STEP 6 Create a Mobile App with a button to Control LED

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Umesh Lokhande
BINARYUPDATES.COM

[vivinsr]

Thanks for this video :)
I have connected to one wifi .. it works fine ..but..Can you tell how to connect nodemcu to another wifi ?

[adilabusafa]

أهلاً وسهلاً ومرحباً-يتعذر التعليق-لا أعلم .

[oliviapluim]

Awesome tutorial! You explained each step so well and focused on what each part did! Thanks a ton!!

[malikarslan]

How can i change wifi credentials which are already stored in the memory of Nodemcu... I try to change these credentials by using blynk app but it didn't find any device when blynk try to connect nearby device. How can i change it.?

[sulaimanbaigmirza]

Can we use the same code for controlling LED bulb

[lefthandedhandyman]

Thank you for an excellent tutorial! When I did the project and compile it according to the video I received an error,

rror: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
17 | #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"
| ^~~~~

exit status 1

Compilation error: #error "Please specify your BLYNK_TEMPLATE_ID and BLYNK_DEVICE_NAME"

I have copied and pasted the id:s from my project in the Blynk desktop.

Do you know what can be wrong?

[andremartines]

Congratulations for the information so well explained. In my case, an ATMega2560+esp8266, I can't create the device directly or create the template after recognizing the device on the CelPhone. The App allows the configuration of the Wifi Network, user and password, however, in the last step, it exceeds the time and does not enable the card to be used on the network. Do you have any more tips? Grateful.

[abhishekkarpe]

Sir can you provide on how to connect node mcu on breadboard

[deepakmourya]

from were i can get a code reply fast as possible

[PalakDhama-]

Sir i am making a model name agriculture machinery but i am not getting that what is the virtual pin for the switch for phosphorus nitrogen potassium all these will be controlled by blynk with solenoid valve

[renzo]

Very clear explanation but I can't use your "because in <sketch-include zip files> the file is not considered a zip file

[subakkkk]

sir, can u teach how to make a connection that have 3 led..I have try it but the coding was error and my circuit also not right

[syed_shahir]

hey the toturial was going so smooth untill i faced an error of template name and id its giving me error, and i have copied the as it is from the blynk console

[mohammedajmal]

sir i have a simple project . in which the led should glow only when internet is available through wifi .. please can u give me idea . please help sir

[kelvinkweka]

I fail to make it i got some problems in sending the codes to the NodMCU but the lesson was good

[danielarellano]

Can you help me? Please. Compilation error: user_interface.h: No such file or directory

[AntoniusJeffryGunawan]

Error compiling the script. you have to define 'device_name' where as from blynk you get 'template_name' instead

[efemert]

I HAVE Compilation error: exit status 1ERROR WHAT SHOULD I DO

[adnanahmadknowledgevideo]

it is showing offline on the blynk website even though I have entered correct auth code and the board is connected to my phones hotspot. But still it is showing offline. How do I solve this problem please help me

[coldzackrane]

May I ask what devices you used? Is it only NodeMCU esp? or you also have arduino hardware? Thank youuu<3