AC Dimmer using Blynk | ESP8266 Projects | IoT Projects

In this video I have shown how to make your own Internet Controlled AC dimmer using Blynk IoT platform and NodeMCU board.
Goto Blynk forum for more help : community.blynk.cc
You can support me and also get benefitted on Patreon :- / techiesms
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Important Links
Goto Blynk forum for more help : community.blynk.cc
Working of AC dimmer explained :- • Simplest AC Dimmer Exp...
For code,circuit diagram and PCB design, read out this article
techiesms.com/...
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Components required for this project
NodeMCU :- amzn.to/2UMTO20
BT136 Triac :- amzn.to/3aIsEPn
MOC3021 :- amzn.to/2yyQoal
MCT2e :- amzn.to/2ULRkAT
Bridge Rectifier :- amzn.to/3aNoQfP
47k 1W Resistor :- amzn.to/2VoJSuA
330e 1/4W Resistor :- amzn.to/2JTF3UZ
1k 1/4W Resistor :- amzn.to/2wwO2It
10k 1/4W Resistor :- amzn.to/3eguLMk
2 pin Terminal Connector :- amzn.to/3b1CQTh
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Buy the components from here
Visit my Amazon Storefront for purchasing any components you need for this project or any other project :-
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[@techiesms]

This code will work only with esp8266 board packages version 2.4.1

[@prajwalsathwick1021]

Sir i tried version 2.4.1 the problem was sloved but the light is flikering slide at 0 the light dosent turn off i changed all delay timings still no use

[@techiesms]

Connect vcc of dimmer circuit to 5v not 3.3v

[@prajwalsathwick1021]

@@techiesms i have connected to 5v itself Vin of nodemcu

[@prajwalsathwick1021]

@@techiesms sir please give the solution i used 5v still its fluctuating

[@AnasKhan-in3wu]

@@prajwalsathwick1021 my problem is same

[@Delali]

you and "Andreas Spiess" always manage to beat me to projects huh!. I have been working on a similar dimmer for my channel.....yours looks simple and works fine too. Big ups

[@maliarif2023]

Nice work !! Simpler and easier to build. Impressive .Iwill make it soon.

[@nisargshukla6382]

Very nice video, clearly explained, waited for such type of Dimmer.

[@saurabhgadkar6351]

Best electronics diy channel for non technical background person also 🙂🙂😊

[@yogendrajamsariya1193]

AC dimmer with bynk ,,, wow man you nailed it ,,,, keep going bro ,,,,

[@ronen124]

simple and to the point I loved the circuit diagram design

[@lucifer604]

You'll not believe that I've been looking for this for a week... And i got it... I'm really happy with this video because you made it on what i was searching all over... Thanks a lot...

[@techiesms]

Now share it with others May be many people like you are searching for this

[@maliarif2023]

Thanks a lot for making this blynk dimmer. I want to make it for my room. once again thank you pal.

[@ankitjain-bv3pd]

I m waiting for 3am sunday Very happy to see vedio I m waiting for this project

[@shreyas8040]

Thanks for this tutorial. I have also made dimmer ciruit but it is not connected with the blynk. Now this tutorial helps me to connect with that. Thanks for that Keep it up ...

[@techiesms]

I’ll only say one thing If this video helped you then kindly share it with others #ShareVideoShareKnowledge

[@krishnawa_]

Great video bro, wow you complete the whole video in 6 minutes 😍

[@sakshamjain240]

Thank you so much bhai, finally the wait is over 😍😍

[@diegoivanparralmedrano7545]

Thank you compa, i love your videos. Hello from Mexico

[@sparshsinghg]

why you didn't use timer interrupt ? my bulb is causing flickering problems, i used board package version 2.6.3 and added ICACHE_RAM_ATTR in front of acon. The problem is unchanged after using 2.4.1 version.

[@sakshamjain240]

I am facing the same issue

[@sahanperera8593]

How to fix the flickering issue

[@technolabcreation]

Amazing video. Very useful

[@reshanireshiba3685]

Wow ,its amazing😊😊detailed explanation

[@GOURAB_DAS_12]

Sir can we make this project with manual control(Potentiometer) and as well as with blink IoT platform. Please Reply...

[@josephpatrickbjacob8787]

Hopefully the next video will teach us how to connect this dimming light by blynk on google assistant. I've been waiting for that since you post this video. Thanks.

[@techiesms]

No. I won’t be uploading that video But well it’s not that difficult You can find tutorial on KZbin regarding google assistant with blynk. Just search for it

[@chimpofm]

Hiya buddy. Can you do a tutorial on a blynk fan controller using a dht22 and pid or ponm . If > 24*c speed up fan 5% if

[@haradhanbaul9389]

Thank you so much sir for this project 🙏, sir can i use esp32 board instead of nodemcu for this project ? Does it work or not?

[@nisargshukla6382]

why not, kzbin.info/www/bejne/jmSziXxjhrF-b9U

[@joykumarsen9881]

Hi sir, Thanks for this amazing tutorial. Can dimming of "led bulb" will be possible with this kind of dimmer circuit? You have used filament bulb in this video. Can we able to use led bulb instead of bulb with filament?

[@TechnologyWithSaikat]

Very Nice sir.

[@21murtaz]

Hey techiesms, I'm really thankful for all your project. I just have one question, if I want to configure a fan regulator also an AC dimmer using a nodemcu and also get the feedback from the fan regulator for the home automation project how can I do it?

[@omaribarracarbajal4822]

I can' t find MCT2E in Mexico, do you think it is possible to replace for another type component?, thanks a lot for your amazing videos. I enjoy watching and boulding my own based on yours.

[@idea-fateh1979]

hello mr in this project you only use the android application with esp 8266 without router (internet) and how the range to connect the phone and the esp 8266 in mèteres i wait your answer thank you

[@anokhautomation4453]

Hi dear. shall i use the robodyne dimmer in this project??

[@ahmedabdellatif2720]

Is it recommended to use a step down transformer in the beginning of the circuit? I tried to copy your work a lot but the circuit keeps getting the nodecmu to hang up.

[@rizwansaeed91]

Hi Dear, This circuit can use for Fan dimmer. If yes can we control fan both from blynk app and variable resistor mean without the app.

[@prajwalsathwick1021]

Thanks a lot sir now ill try 😀

[@niloymondal1826]

please make a detailed video about the virtual pin. and how we can go through it

[@sahanperera8593]

I made this. But bulb is flickering how to fix it. Please give the solution....

[@hajeevanselvanayagam9722]

Video was supper. Can I attached this dimmer to home automation board which is you explain earlier? If it possible how? And please make one small video to this.

[@charichari2480]

Sir this project is excellent. Sir can you make a video on this with blynk and Google assistance control

[@nishanchettri9121]

Nice pcb😊👍

[@AnasKhan-in3wu]

Thnx bro.... awesome project

[@CreativeDesk]

gr8 vdeo ... how can we use a physical knob with feedback

[@karanparve1734]

Wow, its Amazing🤗

[@Priteshpotdar]

Hi I have made 2 home automation circuits using node mcu of 8 relays each. Using Blynk app I have two codes for it, which i am using it i need to switch in two pages to operate two different circuits Can i use both projects on single page ..

[@ElectroIoT]

Many Many Thanks For Great Project i Really Like This And Make It Sure .... My Big Request Please make One Project Like We Control Our air conditioner Via ESP8266 IR Remote .... Esp8266/esp32 as a IR Remote Please in the wall then we command via Google home or Amazon Alexa Also Via Blynk App... If We Add Little OLED Or LCD With ESP8266 Which Show Temp Details Its Also b Great ...

[@tusharshahi1724]

Sir, this will work for fan also?

[@AnasKhan-in3wu]

I am also waiting for this project

[@cristianaruga7119]

hi everybody, i'm traying to make a similar project, but i have some problems. The principal problem is that i can't conect the slider and 2 relays together, how to make the code? because in this code it always is in interrup, and y can't exit, can you help me?

[@devildevil873]

Sir how to control brightness of led bulb plz.. make one video on it.. 🙏🙏bcz..we don't have dc dimmer

[@Delali]

Amazing video. Is there a power limit on the load one can use a circuit like this with?

[@ronen124]

yes, that depends on the TRIAC you use and the heat sink it is attached to

[@manmeetsinghKJ]

Hi sir, plz tell us that how can we use 2 relay channel.. i wana use one for bulb and 2nd for fan

[@vaibhavhihoriya526]

can i get same result with 4n35 instead of MCT2e

[@YogeshDixit2911]

Blynk premium service is costly for normal startup iot company. Any iot service recommend for commercial use? or any low cost mqtt broker service?

[@prathambumb5593]

Host your own mqtt broker on vps

[@nickbloomfield4433]

Hey mate, thanks for a great video, really helpful info and works great. One question though the 47k resistor on the neutral side gets extremely hot, is this normal? I’m using a BT137 (what I had on hand) and it doesn’t get warm at all? All cct’s I’ve seen like this use a BT136 with a heat sink. The fact this component doesn’t heat up at all in my cct makes me think there’s enough of a difference between 136 and 137 to cause issues. Anyone else experience a similar problem? Only difference in the cct is a 4N25 instead of MCT2e and the BT137.

[@kaushalsuvarna1284]

Nice one 👌👌

[@subramanyamsharma398]

Can you make the same with esp32 and sinric? Because you have used esp32 and sinric before and we can connect this to the same project.

[@wishfulbuddy]

Can this circuit control fan speed?

[@bhaktprahaladgupta5211]

This circuit is work on led bulb brightness control?

[@sekharjavvadi]

hi sir how to control multiple bulb dimmer using multiple sliders in the blynk or please do some video on that.....

[@nikhildongardive9669]

hello sir, Can we use same dimmer circuit with Alexa?

[@rizwansaeed91]

Dear after uploading the code in nodemcu V3. In blynk app show connected/disconnected again and again. where is problm

[@kanu6637]

Same

[@doosetdaramkhodahafez8827]

Thanks .. can i use esp8266 01 generic module??

[@pariautomationbyrahul]

Thanx sir

[@anukeshambatkar6255]

sir how to control the appliance using esp8266 01 without using internet

[@mrunmaydarpan125]

I was waiting for this, btw thanks brother, all i want to know that, this circuit doesn't have a snubber circuit, so is it possible to control inductive loads like fan with this circuit?

[@mrunmaydarpan125]

I made it with snubber circuit , but my code was so complicated, the only bug i faced is when ever power supply is gone and circuit runs through inverter, the dimmer doesn't work, it increased my fan speed to full, i have no idea how to fix that bug. Can u help me with that

[@nisargshukla6382]

@@mrunmaydarpan125 which inverter you used? My best guess would be that there is something wrong with ZCD portion of your circuit which inverter feeds

[@mrunmaydarpan125]

@@nisargshukla6382 exactly, may be my inverter doesn't have exact 50hz , this is just a guess.

[@shayampatel9468]

Sir can we bas this on alexa ?

[@tushar673353]

Expensive way to control light brightness

[@NikunjPanchal]

I'm getting following error please help!!!! ISR not in IRAM! User exception (panic/abort/assert) Abort called

[@amanpanchal7433]

Can we use this as a fan regulator

[@shahhemal8055]

Same question

[@Abhishekkumar-cj3ic]

@@shahhemal8055 Yes you can. Infact the fan regulator comes with Bt136 triac

[@revallaharsha9092]

Brother can we use this for controlling speed of seeking fan.

[@mohamedali-sd2jn]

After upload this code, while power on the board it's not with my hotspot. After power off the nodemcu board, it's connecting with my hotspot. How it's happening.... Anyone have solution for this

[@abhishekpatel3117]

Bro plz help me to make this same project by using esp32 and blynk2.0 plz reply fast or tell me the steps and change to make in code

[@maliarif2023]

Hello, Sir, can we use this circuit for inductive loads such as AC Fan? and what about the zero-cross detection of AC Signal 🚥?

[@maliarif2023]

your previous video tells everything thankyou.

[@sopansofyan739]

It's Very good, now how to make notification if the target at behind the wall

[@G-Vecom]

i don't know but after watch this i know xD

[@shakerileiwat4341]

Great ♥ ♥ 👍👍

[@supravatdas7689]

how to add extra switch with eeprom to store data during power off?

[@FaltoBanglaChannel]

Blynk app connect disconnect continuous please help me

[@polashchandramondal79]

wow 😍😍😍😍

[@tonyvarghese75]

Can you make driver drowsiness detector using raspberry pi

[@amitrajput3448]

Sir kya ye nodemcu esp8266 par work karega

[@yogendrajamsariya1193]

Bro please start Google Firebase series as soon as possible we all are waiting for ,,,,

[@ibingproject]

not work for me

[@sujanpaudel1064]

Bro make a video with both blynk and manual dimming feature

[@tridwipdhali]

Sir... Can I use this device as ac fan regulator?

[@polashchandramondal79]

Can i use esp32 or ttgo t-call module in this project???? Please kindly answer me 🙏🙏🙏🙏🙏🙏

[@techiesms]

Yes

[@polashchandramondal79]

@@techiesms sir, can you help with this.. Any tutorial or article. .

[@sakshamjain240]

Bro I am facing a problem, it is working fine at high value of brightness, but at lower value bulbs starts flickering, and it doesn't turn off at zero percent.

[@owengarcia7022]

same problem right now, did u solve it?

[@yuvam5518]

Can I use an LED bulb instead of this YELLOW bulb..?

[@techiesms]

No It won’t work on led bulb

[@vanhieupham2963]

hey sir , How to control multi channel ac dimmer ?

[@demonzchannel9500]

excuse me sir, can i get your code please? i try to visit the website, the result is page not found.. hope you can help me, thank you

[@techiesms]

here is the link techiesms.com/ac-dimmer-using-blynk/

[@AnasKhan-in3wu]

I'm having a problem. The problem is after uploding the code to the NODEMCU. The device showing repeatedly connecting to wifi....😔

[@techiesms]

Send the screenshot of error to me my whatsapp number [phone]

[@prajwalsathwick1021]

Yes even i faced the same its problem in stack it works well with arduino

[@janardhananr2962]

Can we use BTA41 Traic instead of BTA136…?

[@lifeeasytech369]

Yes

[@prajwalsathwick1021]

sir i tried this but the nodemcu is flashing continuously ,repeatedly its connecting and disconnecting

[@rajagupta1982]

I facing the same problem

[@barunmech]

Sir, esp8266 is crashing after 2minutes.

[@tamojitsaha1128]

Is the dimmer board compatible with Inductive loads?

[@shivamkaushik3106]

No, you will get a humming sound

[@abdulhannanshaikh4786]

Can this be used to control the speed of ceiling fans?

[@nisargshukla6382]

Yes, but you have to use proper snubber circuit.

[@abdulhannanshaikh4786]

@@nisargshukla6382 I have no idea what that is I will definitely take a look at it

[@govardhanmuddapati8834]

bro it work on ac fan controlling

[@suyogpatange3997]

Nice, but you didn't share code that includes relay plus AC dimmer

[@techiesms]

Be there isn’t any change in the code You just need to add buttons on the blynk app and connect relay to the pin you want That’s the magic of blynk

[@suyogpatange3997]

@@techiesms thanks you for guidance

[@choudharychoudhary4324]

👌

[@ankitchhipa6148]

my esp is working condition but when i upload your code it started to auto disconnect and connect continuous if you do not want to share code please do not upload wrong Code my all purchased material gone waste

[@ankitjangle227]

try to downgrade esp board, preferably to 2.4.2 same problem occurs to me but after downgrade it works

[@arelectroprojects]

Code uploaded successfully But Dimmer not working

[@arelectroprojects]

Can you please guide

[@iam_dravid]

❤️❤️❤️❤️

[@mechanicalboy9590]

Can I use 2 dimmer at same yime?

[@techiesms]

No

[@yuvs2424]

I want program of this project

[@shayampatel9468]

Please sir do something like that

[@MrDandrix]

Or you can just buy Tapo Smart Bulb...