Control LED using Blynk 2.0/Blynk IOT using Simple Program | Blynk 2.0 Projects | Node MCU Projects

[@huaweigr3856]

It works on my 1st attempt. I used ESP8266 Wemos D1 LED - (D9) + (3.3v)

[@TechTrendsShameer]

Great

[@skeditz2917]

When I copy pasted this I got an error on this line - #include 😢

[@ChubbaBoastinTone766]

Thanks sir, I've been looking for 3 days for a simple walk through like this. All others were either legacy Blynk or had links to codes that were never obtainable...... so frustrating. Mine didn't work at first but I had accidently chose INTEGER instead of DIGITAL for my control. Also to newbs, make sure your add your wifi creds and pw's to code. Thanks again this is great.

[@TechTrendsShameer]

Thank you so much Bro.

[@justicemkandawire9211]

Thanks bro, but wat happen if the project is successful ,,am i going to be continuing paying the blynk app after the pay period expired?

[@ChubbaBoastinTone766]

@@justicemkandawire9211 the blynk app has a free version that’s more than enough for a semi serious hobbyist. 2 devices and 30 functions each I believe.

[@clawsanjuyt1608]

Ssid and password of my mobile hotspot right I have to use that

[@ndaghakangoma6003]

great video !!..I was doing the same project but I used an arduino mkr wifi 1010 instead of esp ...arduino mkr wifi is an arduino with wifi capabiilities.. You're instructions were very clear and I was able to finish the project and it all worked out

[@TechTrendsShameer]

Great 👍Whether the code is same for Arduino MKR Wifi? Please share the details. I will also give a try.

[@keerthanabantumilli585]

It works... Thank you soo much sir

[@TechTrendsShameer]

Welcome 👍. Please subscribe and follow instagram 😊

[@RojinaSundas-v1z]

Very Good🤗

[@KIYANSHJAINSuchitraAcademy]

Hi, which version of ESP2866 works in Adruino?

[@TechTrendsShameer]

Try Arduino 1.8 or 2.

[@harshinir440]

awesome sir . Its working

[@TechTrendsShameer]

Thank you 😊

[@KIYANSHJAINSuchitraAcademy]

I keep getting this error when I try to upload program :A fatal esptool.py error occurred: Timed out waiting for packet header

[@vignanb1585]

Thank you sir WORKING

[@TechTrendsShameer]

Welcome 👍

[@samde7903]

El único vídeo que me sirvió, good work 🤙

[@TechTrendsShameer]

Thank you 😊

[@prodyumnapal5430]

Great! Can it be controlled form anywhere in the world?

[@TechTrendsShameer]

Yes

[@AnkitSaini-kr6oz]

It works in my first attempt

[@TechTrendsShameer]

That's Great. Good to Know. Thank you. Keep Supporting.

[@AnkitSaini-kr6oz]

@@TechTrendsShameer can you help me in project. My project is smart dustbin. In which I'm using ultra sonic sensor to get notification by blynk app when my dustbin is full. I am facing problem to get the notification on my blynk app. Please help me. And thank you ☺️ for my help

[@TechTrendsShameer]

Can you send me your program? Also which version of blynk you are using ? Blynk Legacy or Blynk iot?

[@AnkitSaini-kr6oz]

@@TechTrendsShameer #define BLYNK_PRINT Serial #include #include const int trigger = 9; const int echo = 10; float duration; int distance, percentage; const int upper_limit = 5; const int bottom_limit = 80; // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = "xSUtGHO53BQ3Wn8sVs2otaIehrdxodrB"; // Your WiFi credentials. // Set password to "" for open networks. char ssid[] = "vivo 1801"; char pass[] = "abhishek"; void setup() { Serial.begin(9600); pinMode(trigger, OUTPUT); pinMode(echo, INPUT); digitalWrite(trigger, LOW); Blynk.begin(auth, ssid, pass); } void sensor() { digitalWrite(trigger, HIGH); delayMicroseconds(10); digitalWrite(trigger, LOW); duration = pulseIn(echo, HIGH); distance = duration * 0.017; percentage= ((bottom_limit - distance)/(bottom_limit - upper_limit))*100; //Actually percentage = (((bottom_limit - upper_limit)- (distance - upper_limit))/(bottom_limit - upper_limit)))*100; } BLYNK_READ(V5){ Blynk.virtualWrite(V5, percentage); } void loop() { sensor(); Blynk.run(); BLYNK_READ(V5); } This is my code . And here I am using blynk iot app. Please help☺️

[@harsh9266]

How we connect more than one led I was trying to connect through D5 Select digital pin 1 in blynk it's not working

[@TechTrendsShameer]

Did you tried with 1 LED? If not please try with that. Once you get the output, I will tell you the modifications in the code for 5 LEDs.

[@meliodasagario398]

@@TechTrendsShameer i did tried with 1 LED and it worked! pls do more than 1 LED

[@TechTrendsShameer]

After Wifi Connection add these lines in the code int ledpin = D4; int ledpin = D1; int ledpin = D2; int ledpin = D3; int ledpin = D5; Then Connect LED 1 to D4, LED 2 to D1, LED 3 to D2, LED 4 to D5, LED 5 to D6 IN Blynk Datastream, select the variable as 2, 5, 4, 0, 14

[@j.nazarenorosas6154]

Muito bem explicado!!! Meu projeto só funcionou a partir do código postado nesse canal.

[@TechTrendsShameer]

Thank you. Please subscribe and support.

[@KavyaReddy-u5s]

Sir can i use 3 LEDs instead of 1 LED If yes please tell me how to connect 3 LEDs Is there any use of resistors

[@santanupramanik4913]

Where did you learn coding? What are resources you have?

[@TechTrendsShameer]

Please connect me in Instagram

[@santanupramanik4913]

@@TechTrendsShameer Don't have insta. What to do then?

[@TechTrendsShameer]

[e-mail]

[@jaquelynsingalensut5924]

why my blynk.run(); it says does not declare in the scope

[@TechTrendsShameer]

Are you using blynk updated version?

[@KIYANSHJAINSuchitraAcademy]

@3.44 mins, you are saying copy code and upload program, where and how to upload the program?

[@TechTrendsShameer]

Check video description for the code.

[@blacksattai1675]

Can we use more than one led

[@TechTrendsShameer]

Yes. You can use more than 1 LED.

[@narendrashiva9360]

Will it work from anywhere in the world?

[@TechTrendsShameer]

Yes.

[@SALIMkhan-cf4bh]

THANKS, WORKING CODE

[@TechTrendsShameer]

Welcome 👍

[@balajiyuvaraj718]

maya doola dirachav ne tho mamulga vundadhu thop nuvu

[@Neptune_studious]

What is the cost of node mcu ???

[@TechTrendsShameer]

Around 250 rs.

[@sknajirhosen777]

In Kolkata chadni market it price 150 rs

[@travel_vloz3430]

Which platform to run the code

[@TechTrendsShameer]

Arduino IDE.

[@diyeagle1]

Sir mera blynk switch thoda late work kr rha hai on off hone me kch secs lgta hai

[@susmithak8574]

Sir when we code is uploading and y sir don't show in online our device

[@TechTrendsShameer]

The device will show online once the code is completed uploading. Please check the template ID, device id and auth token are correct. Also make sure the wifi credentials are correct. If you are still facing issues, please contact me on instagram instagram.com/tech_trends_shameer

[@TechTrendsShameer]

@@susmithak8574 I didn't understand the doubt clearly. Can you please connect me in instagram instagram.com/tech_trends_shameer

[@musicaddict12345]

I did not get which programme u were talking

[@TechTrendsShameer]

Check video description for the code.

[@madh6244]

thank you

[@TechTrendsShameer]

You're welcome

[@KPP26]

where we get the program

[@TechTrendsShameer]

Check video description.

[@shirishakothuri1454]

Hello sir!!! device is showing online but led is not getting on😢

[@TechTrendsShameer]

Check Auth code and wifi credentials are correct

[@adamsarjana2092]

hey why my device still offline

[@TechTrendsShameer]

Check WiFi connection and auth token

[@almeespinosawild2196]

You found any solution? I’m in the same situation

[@Ammuxz07]

Sir how to change the device offline into online sir

[@dr.muhammadsohail3820]

The led is not connecting to blynk and the led is glowing automatically

[@TechTrendsShameer]

Please let me know which pin you connected in ESP8266 board and which pin you mentioned in Blynk -> Datastream.

[@prakashshrestha2460]

same problem

[@ngdanger635]

Sir in the code error showing that wifi username and pass not declared in scope

[@ngdanger635]

Please help

[@iamindiaarmiy8927]

Sir aap se koi help mil sakta hai

[@TechTrendsShameer]

Yes

[@TeachMeSomething]

First view.

[@TechTrendsShameer]

Thanks Bro

[@SALIMkhan-cf4bh]

2 MEANS D4, PLEASE SEND ME WHAT ABOUT D5 AND D6

[@TechTrendsShameer]

1 -> D5 2 -> D4 3 -> D0 4 -> D2 5 -> D14 6 -> D12

[@444-h6w]

Bro i need the source code Google drive not working

[@TechTrendsShameer]

Check this please github.com/Tech-Trends-Shameer/Esp-8266-Projects/tree/main/Control-LED-Using-Blynk-IOT

[@444-h6w]

@@TechTrendsShameer working 🤗♥️

[@Ojha_Anmol]

Sir code problem ha plz aap code paste kardona 🤧🤧 discription par code paste kardona to mehar bani hogi sir kyuki kl checking ha

[@satreaaji]

there something wrong with your code

[@TechTrendsShameer]

Please let me know what's wrong in the code

[@satreaaji]

@@TechTrendsShameer idk, but it wont work, did you recheck your code? Loop is empty

[@satreaaji]

@@TechTrendsShameer nvm, i found it, in your code ledpin d14, but your blynk use d2. Im conversing your code to esp32, at first it wont work. But after change digital pin on blynk, now it worked. Thanks

[@TechTrendsShameer]

I think you checked the code from the video. You will not able to see the full code in the video screen. Please check the video description for the complete source code.

[@TechTrendsShameer]

I use ESP 8266 in this project. If you are using other boards or selected other pins, please modify the program.

[@hananafif165]

invalid auth code, please help

[@TechTrendsShameer]

The auth code will be generated during setup. My code will not work for you. Please follow the steps and generate your own code.

[@abbod7198]

You didn’t explain the code

[@ECEBESTALWAYS]

it says d4 not declared in scope... time waste

[@TechTrendsShameer]

How many hours you wasted ?

[@sanjayniranjanbalaji9530]

@@TechTrendsShameer sir i am getting same error pls help

[@sanjayniranjanbalaji9530]

C:\Users\sanja\AppData\Local\Temp\.arduinoIDE-unsaved2022917-1652-1lgzl4z.blme\sketch_oct17a\sketch_oct17a.ino:18:14: error: 'D4' was not declared in this scope; did you mean 'V4'? 18 | int ledpin = D4; | ^~ | V4 Multiple libraries were found for "BlynkSimpleEsp8266.h" Used: C:\Users\sanja\OneDrive\Documents\Arduino\libraries\Blynk Not used: C:\Users\sanja\OneDrive\Documents\Arduino\libraries\blynk-library-master exit status 1 Compilation error: 'D4' was not declared in this scope; did you mean 'V4'?

[@Vaxsas_Ezolt]

Hi i get error on code #include for this line

[@hisham5983]

you should setup the esp8266 in arduino ide