What is Blynk and how does it work?

[@rongeernaert1208]

Ive bild a whole E rain gauge with magnet and Hall sensor and tipping bucket and also Arduino Uno and also try Rpi4 (with wifi bild in ) no should Blynk (free detecting this puls for messure the rain outside or must this first working with code and GSM screen ?

[@fskhankhan6155]

Thanks for your efforts in explaining about Blynk.

[@MaxGoddur]

If you look at the example list and select servo it is unclear which pin you connect physically to the servo and the slider. This is not straight forward so having trouble figuring out how folks use this app. Sure creating the graphical interface on your cell phone is 80% clear and the sketch creation is 10% clear. How would you go about creating buttons, a graph, a gauge, and a display for one project? Which example on the web site do you select? Needed is an example for each and every example on that blynk sample page.

[@csongorvarga]

It was a long time ago I used Blink for the last time. What are you trying to do?

[@MaxGoddur]

@@csongorvarga see my OP covers it there.

[@csongorvarga]

@@MaxGoddur I think it is unclear because it depends on the microcontroller which PIN supports PWM. You need a PWM pin for the servo. So the basic Led and UI button example works, just need to use a PIN which supports PWM and use a slider instead of a button.

[@elsonjonascruz2343]

Hello, may i ask if blynk app is capable of sending notification in multiple device?

[@davidwize5991]

You spoke at 2:48 about not using Blynk and suggest "norgrad" (it sound like that" and Qtt) am looking to get a UI without getting to the net. can you let me know what was on the audio > Great Video thank you

[@csongorvarga]

I said Node-Red. That is what I use in my home. I am very fond of that, but there are many other options available which provide a nice UI. Check out OpenHAB or Home Assistant. Those are easy to set up if you only want a nice UI. I prefer Node-Red because I am not interested in UI, but more on programming bespoke functions. And for that Node-Red is more handy for me.

[@gregorymompezat2261]

Check Node RED and if you have your hown server check MQTT framework i think it's that... but i might be wrong

[@m862]

What is the maximum distance between tools and blynk app?? Thank you

[@csongorvarga]

Communication is via a cloud server. You can access your devices from mobile data as well.

[@m862]

@@csongorvarga . i have tried but the distance is only 10 meter ., why?

[@m862]

i m using esp8266 v3

[@csongorvarga]

@@m862 same thing.

[@m862]

@@csongorvarga do you agree about distance maximum 10 meter.? i have problem about it . i want to know the distance maximus bylnk app

[@mk93_h]

Is it possible to transmit ECG sensor data using AD8232 ECG sensor over Wifi module ESP8266 or NODE MCU on the Blynk app, and finally show the ECG graph and BPM of the person in real time on Blynk app ?

[@csongorvarga]

No Blynk is not designed to process such quick data. In the docs they state only 1 record per second is recommended.

[@mk93_h]

@@csongorvarga Any other way to transmit ECG sensor data of AD8232 sensor on IOT Website like ThingSpeak ?

[@csongorvarga]

@@mk93_h I am not aware of any service which would handle the frequency an ECG requires.

[@mk93_h]

@@csongorvarga That's ok

[@MahdiyarZz]

i dont have bread board so can you explain me connect witch pins to other pins ?

[@csongorvarga]

This is just an overall explanation video on Blynk. I have a separate video on the garage door opener project, where I have schematics showing which pin goes where.

[@wonkastudio-johnny]

can blink send you a text message on the state of a switch, either on or off ?

[@csongorvarga]

johnny wonka No, there is Twitter, email support and app notifications. But since you can add your own code on the hardware you can implement anything outside Blynk.

[@wonkastudio-johnny]

thank you for reply, are there any others out there that can do that without a lot of programing since i am not to good in programing..

[@csongorvarga]

johnny wonka Actually, have a look at Conrad Connect. I only spent about 1 hour looking at it and it looks quite promising. The recepie builder is very easy and powerful.

[@blynkyt]

so this is what has more subscribers than me

[@yarlep]

How do you power your relay board? Do you power it using the arduino mcu board or through an external power supply??

[@csongorvarga]

It depends. Sometimes I just use a spare USB charger/power supply. If I want something permanent, my preference is a HLK-PM01 compact 5V power supply

[@sadirbeksaliev5284]

how can add moisture level reader to app? which display can use from widget box?

[@doubleHLabs]

Very helpful, one question though. Is the energy to add say a button to the app a one time cost or each time you use the button?

[@balazssrancsik1691]

I just checked this. It is per button. So say you want to add a control to switch 2 relays on/off separately it is 2X200 energy points.

[@hemant282]

please where is the code to install in Wemos D1 mini ?

[@sankarmondal89]

can you make a video on a project that is included, NodeMCU + Relay module + Robotdyn AC light dimmer + Blynk? or can I have the coding? I'm trying to make a project like that but really poor in coding. Will you please help?

[@krisztianurban8286]

Kedves Csongor! Nekem annyi problémám lenne az eszközömmel, hogy ha áramkimaradást imitálok, akkor újraindítást követően a reléknél lévő led világítani kezd, illetve a garázskapu kinyílik. :)

[@csongorvarga]

Igen, sajnos fontos hogy melyik kimenetet hasznalod az ESPn mert van amelyik bootolaskor 0 vagy 1es erteket vesz fel egy rovid idore. Ocsemnek epitettem egy Blynk garazsnyitot, ott ez nem problema. Van arrol egy kulon videom.

[@krisztianurban8286]

@@csongorvarga Köszönöm a segítséged! Meg fogom tekinteni.

[@aimansai2354]

Hi sir. if you dont mind can you help me, im using esp01 dht 11 with esp8266 stick that standalone (not nodemcu it literally esp8266-01), using the same code and choose the right board already and successfully upload. however, it appear that while in blynk app i cannot find my device to connect. do u have any idea?

[@aidanordin3345]

Your explainations are really good.. 🖒🖒🖒🖒🖒 thank you so much !!

[@Explore-Gobal]

Is there a free alternative to something like Blynk? The price increase from 2017 to 2020 is pretty steep and if that is any indicator of things to come, this is not a good sign.

[@csongorvarga]

I am asking the same question from myself as well. But I am not aware any alternatives. But I have not looked either. Let me ask around in my local ESP forum.

[@msindisimtengwane9456]

Hey man...great video. I like the detail. Quick question though, do I need the Ethernet shield to operate this? I have a HM-10 BLE module and I am trying to use it to control a motor and other things using an arduino nano. I also have an arduino uno, but I don't have the ethernet shield. Is it possible to control an arduino project via BLE module without the ethernet shield? Or are they two completely different platforms?

[@csongorvarga]

I never used BLE with Blynk. But you need a way for the Blynk server to communicate with BLE device. The examples I have seen is your phone communicates with the BLE device via Blynk. Which is nice and easy but that will not work when you move away from your BLE device. For those scenarios you need some sort of Wifi-BLE gateway like an arduino with ethernet shield and BLE module as well. But I don't believe the code for that exists out-of-the box, so you need to code that in Arduino IDE.

[@msindisimtengwane9456]

Csongor Varga Would you be able to assist me with getting Blynk to communicate with my BLE module? I would really appreciate it man. I am doing this for my school project. I have a HC-06 and it works perfectly with an android device. I am just struggling to get my iphone to communicate with my HM-10 BLE.

[@msindisimtengwane9456]

​@@csongorvarga I just want to be able to control a motor via bluetooth using an iphone without having to through the whole xcode thing. I do not know anything about xcode or how to program using it.

[@mrteausaable]

What is the input voltage on your relays, 5v? The ESP8266 only output 3.3v. How do you connect to this relay? Mine does not work with 5v relay board.

[@csongorvarga]

It works for me. I have a relay board with optocouplers. The relay is 5V, but most probably the optocoupler opens on 3.3V and provides the 5V to the board which is needed for the relay to work properly.

[@mrteausaable]

My relay only led lights up but no click on relay. Link what kind of relay?

[@csongorvarga]

I have something like this: www.ebay.co.uk/itm/5V-1-2-4-8-Channel-Relay-Board-Module-for-Arduino-Raspberry-Pi-ARM-AVR-DSP-PIC/252051910091?epid=1642428054&hash=item3aaf76edcb:m:mdbiogK3bG3MfWb_sjDpLvw Did you connect 5V to the VCC pin of the relay board? Like I showed on the diagram?

[@mrteausaable]

I have the same relay but 8 chls. You mean I need to supply external 5V supply. How do I wired it? It has GND-IN1-IN2-IN3----IN8-VCC pins then on the far Right it has GND-VCC-JD-VCC pins with Jumper pin on the it. So how should I connect to this relay. Do the trigger from Arduino pin trigger High or Low when On?

[@csongorvarga]

GND goes to ground, VCC to 5V and IN1-IN8 goes directly to the ESP/Arduino pins. The jumper should be closed. My model triggers on low. This should work.

[@gyorgypuskas7555]

Szia Csongor! Elkezdtem építeni az okos otthonomat LC Tech-es esp-01-es 2 és 4 csatornás relémodulokkal, viszont nem volt hozzá jól kidolgozott alkalmazás, ezért váltottam nodemcu esp-12e modulokra, optocsatolós relémodullal, meg Blynk alkalmazásra!Szuper! De most ott pihen a szekrényben 2db 4 csatornás, és 2db két csatornás Lc teches panel!. Azokat össze lehet hozni blynkel? Válaszodat előre is köszönöm

[@csongorvarga]

Biztosan, csak nem tudom hogyan. Mármint ESP Easy-ben is megoldották. Arduino-ban is lehet a soros porton adatokat küldeni, a baud 9600, viszont azt nem tudom milyen üzeneteket kell küldeni a MCU-nak.

[@gyorgypuskas7555]

@@csongorvarga Ha nem tudsz segíteni, akkor eladom beszerzési áron őket, és veszek a befolyt összegből nodemcu esp-12e modulokat😎

[@csongorvarga]

@@gyorgypuskas7555 Én nem, igazából nincs időm próbálkozni vele.

[@alincimpoca7839]

Thank you for this introduction about Blynk and also for all your videos. Do you know if we can send/recive same mqqt mesages in local netowrk to/from raspberry using blynk?

[@csongorvarga]

Thanks. I don't know how Blynk communicates. There might be a documentation on that, but I did not find / look. You can always add MQTT to the sketch and have the raspberry pi rely the mqtt messages to blynk.

[@nayanaksh4104]

Do need to pay to use blynk application.....?

[@csongorvarga]

You pay for the screen element ince when you build your project. But the app itself is free, and there an no subscription.

[@mobgma]

What do I do if I want to control via bluetooth? I want to control relays within 100metres where there is no access to wifi. I need an iOS app to control relays. Any advice?

[@csongorvarga]

I have not explored this option yet, but I think Blynk is not your solution. I have seen ready made relay board with bluetooth that usually comes with its own app to control it. Btw, 100m for BT is I think a myth.

[@Michael-lo3ht]

Probably your best bet is something like NRF24L01-Wireless-Transceiver which there are various versions with greater output and you can use directional antennas. There are plenty of how-to's out there on it.

[@buzzdev]

I have couple of Class 1 Bluetooth dongles and 100 meters is not a problem at all. It is definitely not a myth ;)

[@csongorvarga]

Sorry, I never had a class 1 BT module before. But it appears that it worth considering.

[@buzzdev]

I'd also recommend having a look at XBee wireless modules. You can choose different output power options, different protocols.. Really a nice one...

[@tiwar87]

Can we customize the buttons or indicators of blynk app?

[@tiwar87]

I mean, add images to buttons or indicators, modify size of buttons and so on

[@csongorvarga]

Well, it is limited. You have a set of UI controls you can use. They all have a fixed appearance, but you pick from 5 different colors, customize the label (also on and off label), and overall size. But all buttons are rounded and there are no icons.

[@RakibulIslam-sf2tl]

Blynk Can I use same way to control anywhere from world? Please answer me

[@csongorvarga]

Yes, your project communicates with the Blynk server on the cloud, and your Phone app also talks to the same server. Even if you are on the same network, your phone talks to the server in the cloud and not your device next to it.

[@afazulhoq4531]

Can i work with Emotiv Insight with this

[@mesample1705]

Wow, your code actually works, you speak at a rate that can be understood. The only negative is you chose "Autos & Vehicles" as the video category, otherwise, you nailed it.

[@csongorvarga]

Thanks :) I moved it to Science and Tech :)

[@FernandoBS.]

does it work with otg cable?

[@bhuvanesh1963]

Can you explain ckt. Separately and provide code for it

[@csongorvarga]

Sorry, I did not get that.

[@ottosboyen]

Thanks alot for a good and easy to understand tutorial about this app. All the others are either hard to understand or in Russian. Thanks !

[@Str33tfalcon]

Compare the prices 12:50min to now... nice increment in the last 3 years... pff x1000 3.49€ - 4.13 USD vs 0.99 USD x2,400 6.99€ - 8.27 USD vs 1.99 USD x5,000 7.99€ - 9.45 USD vs 3.99 USD x13,000 16.99€ - 20.09 USD vs 9.99 USD x28,000 23.99€ - 28.37 USD vs 19.99 USD

[@ajayamaharana339]

Dear sir is It working on Jio network or not please reply..

[@csongorvarga]

I dont know what a Jio network is. Watch the messages on the serial monitor in arduino IDE. What does it say?

[@khairunisaniesa5500]

can i know where is the continuous of this video?

[@csongorvarga]

You are probably looking for this: kzbin.info/www/bejne/f3PVlGWsbtGBo5I

[@ElectroLund]

Really great howto. Thanks for demystifying this for me!

[@BillAnt]

Just don't blink, cuz you'll miss it. ;D

[@mrborovicns]

Great! Where is the code please?

[@csongorvarga]

I have a separate video on that project. You can see the video here: kzbin.info/www/bejne/f3PVlGWsbtGBo5I. Video description has the link to the code.

[@nuovovideo]

The blink doesn't go online. I can't understand

[@csongorvarga]

Use the Serial Monitor in Arduino IDE to see what messages are being returned. There could be some hint there what has gone wrong. I never has this issue before.

[@bappajana6970]

sir, when i am trying to upload a blynk program to my arduino board for hc05 bassed led on off it is showing error "blynk is not decleare in this scope" please help me to overcome this

[@csongorvarga]

Sorry, don't know why this error is occuring. Have you set up Blynk for Arduino IDE correctly? Please post this in the Blynk forum, they will be able to help you.

[@Vortexetrov]

Respect. Marhajó. Ha leépítkeztem hamarosan, keresni foglak :))) Szuper !!! :)

[@csongorvarga]

Örülök szerint, ha tudok segítek.

[@robertotvos5802]

@@csongorvarga egy magyar fordítást dobhatnál

[@ebenezernicepost]

Nice one

[@charlesthomas8375]

I need help can you help me out?

[@ClaudeMcVea]

great video thanks

[@travello62]

is Blynk free app.. ? I have to use for my project.

[@csongorvarga]

I did cover that in the video? Didn't you watch that?

[@pasxa]

Muhammad Awais blynk is free to download and experiment. There are some paid features

[@nonparticipant4671]

Appreciate the effort. You should try to edit your video or at least be prepared before you attempt something like this. It gets frustrating with all the dead ends and problems that don't get resolved.

[@toml.8210]

( would never use this unless it is a stand-alone program that runs only on my Android tablet with a direct USB connection to thet Arduino board.

[@csongorvarga]

Use an ESP or an Arduino with Ethernet shield. Than you can drop the USB.

[@mixme8655]

thank you sir

[@smartkids746]

PLEASE SHARE CODE

[@csongorvarga]

You find it here: kzbin.info/www/bejne/f3PVlGWsbtGBo5I

[@FahadAndFarrukh]

I like your accent!

[@jokkiossaka3306]

I don't like cloud... it's all about control you...

[@SuperADI2]

What you call it free is not totally free if you want to use many widgets. If you want a free interface look at RemoteXY , plus that is much safe because don't need any account or cloud connection, so..... from far away is much better

[@csongorvarga]

Yes I said that the widget cost money and you need to spend after a while. RemoteXY looks interesting, but without a cloud account remote control (outside the wifi) is probably problematic.

[@SuperADI2]

Csongor Varga Cloud account and in general servers that process your information is equal with lack of security = vulnerability. I think local Bluetooth application s between phone and Arduino are much safety and you don't depend on having your phone connected at WiFi

[@csongorvarga]

I agree, but still some projects cannot be done like that.

[@SuperADI2]

Csongor Varga You are right, I agree with you :)

[@tiwar87]

Super ADI but the IoT, and of course the IIoT, all of them depending of a cloud service, is the way how things Will be connecting and sharing info between them! I know it could be insecure but there are other plataforms like Amazon web services or Microsoft! The Internet of things is here and we need to work with them

[@gyurmalin1]

Miért nem magyarul beszélsz?

[@csongorvarga]

Mert akik nézik a videóimat annak 90%a nem magyar

[@tabatali2172]

Thank you +++++

[@МихаилКалинин-ь9щ]

Please give me eno

[@brit1066]

Wow, I appreciate that you are trying to demonstrate the capabilities of BLYNK, BUT you are all over the place. I am a retired engineer from the networking industry, ex 3Com and Cisco So I have a lot of knowledge of networking. But I am having a terrible time trying to follow you, you jump around, then you mumble then you make a mistake and in trying to fix things you completely LOSE THE VIEWER. It is obvious that you NEVER PLAN YOUR PRESENTATION BEFOREHAND. You seem to have technical knowledge but when you try to explain things you are HOPELESS. So take some advice from someone who has YEARS OF EXPERIENCE IN TEACHING THIS SORT OF THING. Firstly PLAN THE PRESENTATION, explain each concept fully and SLOW DOWN, this is not a race. Speak clearly, do not mumble, if you make a mistake, DO NOT START PRESSING BUTTONS WILLY NILLY TO FIX THINGS. Explain your error and then RESET to the point before the error. Do not bring in EXTRANEOUS BITS OF INFORMATION, STICK STRICTLY TO YOUR PLAN. Then SUMMARIZE the whole presentation at the end. Follow these simple points and then perhaps your viewers will not shake their heads in frustration. After watching this a couple of times I am still confused about some major concepts. Better luck in future, SLOW DOWN SPEAK CLEARLY.

[@robertlongoria765]

I think he did exceptionally well. I am starting from almost zero background and I found the look behind the curtain to be intriguing. and worth more effort. This is not a semester course , I will allow for some deficiencies or no one will contribute to the commonweal. but your points are well taken although I think too shame based.

[@pjwlk]

This video is worth every penny you paid for it. Don't complain, be grateful that he's is trying to help and giving his time for free. Running the guy down because his effort doen't meet your expectations serves no useful purpose. He owes you nothing. Why not just move on if you don't like it?

[@raghavkhattar4952]

And.. and....and...and

[@MrBobWareham]

not good