Bluetooth TRIAC AC power control

[@abrahammagnifico9538]

FULL BRIDGE RECTIFIER !!!! ......., Thanks electroboom for this stuck in my head.

[@ManofCulture]

BOOM! -Taras Kul

[@josefseibl2932]

Thanks for the really great tutorial! I think your explanations are spot-on. You explain exactly what is necessary without going too much into basics or advanced stuff!

[@RamBrosWorkshop]

I'm using this in my projects. Your content is the best

[@extraace]

Thanks, I finally have a good understanding oh how triacs work now. I've watched a lot of videos on them and mimicked the circuits but never fully understood. So simple.

[@indritbreti4979]

I have been searching for this video for too long, because i didn't know how to use a Triac. Thanks!

[@hc4633]

This channel needs more subscribers! Great tutorial paired with common sense.

[@ELECTRONOOBS]

Hudson Chamberlain thank you so much!

[@krakatoa1987]

Saw many videos related to this topic, and this is the one that made me understand, great explanation, oscilloscope and edition!

[@electronic7979]

Excellent video.it was useful to me.thank you so much.

[@joetke]

Great pedagogy! instructive video indeed. And your accent adds an awesome exotism to the whole ;)

[@vinodkumarmourya1485]

Thanks for making such kind of video, Today I have learned how to control AC voltage

[@mmdnaderi7183]

i just gonna fall in love with you when you say FULL BRIDGE RECTIFIER :D

[@kedarprabhudessai]

awesome !! great video as always :) this is the video for which i was waiting for. keep it up my friend

[@gametabulas]

Thanks bro, your videos help me alot. I am currently in college, once i graduate (hopefully in 8 months) ill make sure to fund you on patreon.

[@AxlAlejT]

Thanks man, you really saved me from the consequences of have had a bad professor.

[@ajumpa1]

Great explanation! I got a little nervous when you were pointing at the high voltage components with a metal screwdriver.

[@andreswanepoel4826]

Such a good tutorial. You could be the professor

[@updateyourjob7014]

Really Nice finally i understood how to make dimming controller device

[@MCsCreations]

Fantastic work, man! Really, really nice! 😀

[@rongarza9488]

The banana is not for sale, it is to let you compare the sizes of the items near it. I think that is what he means when he says it is for scale. ¿Pero que sé yo? (but what do I know?) Good job, Electronoobs!

[@naderhany3639]

Great explanation Electroboomnoobs

[@mancio92M]

congratulations another beautiful tutorial

[@markharrisllb]

Thank you, I now understand trials.

[@ashu_ei]

That were too good... Sir... Thanks for this video

[@usmanumer9871]

i like him . because he give answer of our comments

[@crouserhd297]

Hello, is it possible to buy something like that? I only need about 80W

[@Ne555N]

VERY IMPORTANT SAFETY ADVICE!! In english here! En español abajo! Good circuit men I built something similar in the past. I need to clarify one point that is very important. Take care with inductive loads (motors, CFL...) especially with heavy ones!!, because triacs and also diacs have dv/dt specs, it means that if you change the voltage very fast the triac (or diac) can be damaged or even worse, destroyed :S. (When you switch ON/OFF a inductive load voltage spikes can happen). Also if you connect a heavy load (which demands a lot of current) there will be more power disipation on the triac/diac because Power = Voltage x Current, this means that the triac/diac can get very hot quicky and this will cause the destruction of the component. Check the datasheet of the component and put a good dissipator to prevent this ^^. As bonus! ^^ To prevent problems with heavy inductive loads you should use a snubber circuit. Designing a snubber circuit requires more knowledge in electronics but if you are interested I invite you to search in google snnuber circuit for diacs/triacs ^^. I hope you, people, understand my explanation :), I'm from Spain too :P. See you!! and have fun with safety electronics!! ;D. EN ESPAÑOL!!! para los hispanohablantes! ;) Buen circuito tío! construí algo similar en el pasado. Tengo que aclarar un punto muy importante cuidado con las cargas inductivas (motores, CFL...) especialmente con las "pesadas" (bobinas grandes tipo transformadores, motores grandes...) ya que los triacs, (tambien los diacs) poseen especificaciones dv/dt lo que significa que si se cambia el voltaje bruscamente (muy rápidamente) el triac/diac puede resultar dañado, o aun peor, destruido :S. (Cuando conectas/desconectas una carga inductiva se pueden producir estos cambios rápidos de voltaje de los que hablo). Ademas de esto, si se conecta una carga que demande mucha corriente (no tiene porque ser de tipo inductivo), habrá mas disipación de potencia ya que Potencia = Voltaje x Intensidad, lo que hará que el triac/diac se caliente muchísimo y esto puede causar su destrucción. Recomiendo mirar el datasheet, mirar que potencia soporta el componente, que intensidad y que voltaje ^^. También una buena idea es poner un buen disipador para prevenir estos incrementos de temperatura en el componente. Como bonus!! ^^ Para prevenir problemas con cargas inductivas "pesadas" convendría usar un circuito llamado snubber, es como una especie de filtro que evita picos de voltaje, pero para diseñar uno hace falta tener conocimientos mas avanzados de electrónica, os invito a buscar en google snubber circuits for triacs/diacs (circuitos snubber para triacs/diacs). Bueno después de todo este pedazo de comentario, espero que nadie se electrocute, se cargue la instalación eléctrica de su casa... jaja Disfrutad de la electrónica, si vais con cuidado nada malo pasara! un abrazo gente! ^^. Para el Autor del vídeo! me identifico contigo yo también estudio ingeniería Electrónica y ya estoy casi acabando tengo 24 años! jaja Un abrazo sigue así y cuidado que no se te electrocuten los subscriptores! jaja :P

[@ScienceLab760]

Nice video and good explanation, thanks for share

[@obaidullahsarker6221]

very nice project also presentation. thanks

[@hobbytechnical1097]

Nice and knowledge full video bro thanks dear

[@alfredonovoa8124]

The current in Spain has 230V AC. That's why you have 227-229V on the osciloscope.

[@nipusfreetution3458]

Nice one. This part was needed for a project of mine. Thanks alot. BTW whats up with the banana?

[@MASAYEM-rs2ny]

Great job sir, nice project

[@imbakebab]

Can i use this method to control a 3kw heating element?

[@romycruz4498]

wow this is what i'm looking for thanks.

[@hamzayaich96]

Maaan ! a lot of knowledge , thank you so much !!

[@dzorzstops5136]

Perfect idea. 😀

[@ruslan.zhumabai]

Good project for smart home.

[@SaliyaRuchiranga]

been waited for this , great !!!

[@armanhossain2491]

good project

[@tech_queue]

very very awesome working

[@arishy]

Love your way of clarifying the concepts behind your project. You mentioned briefly that you can use step down trans say 230/12 volt. Is that mean that if I provide 12 volt to your circuit all the components will function with NO CHANGE. of course I will use an LED as a load instead of the 220 volt lamp.

[@stonecold7945]

I am kind of new to this channel, but what's the banana for?

[@ELECTRONOOBS]

Stone Cold7 banana for scale, of course!

[@yasirshahzad3732]

Hahah

[@yasirshahzad3732]

Stone Cold7 its for sale you can buy it

[@stonecold7945]

Yasir Shahzad How much is it!

[@sayantanmaiti2513]

One question... You must be using interrupts when taking the output signal from the opto IC that goes into the UNO... but you are connecting that to pin 8 of UNO.. pin 8 is not an interrupt for atmel328... so how you are dealing that...are you just using just if else for that???

[@ELECTRONOOBS]

Sayantan Maiti what do you mean? You can activate pin state change PCMSK |= (1

[@sayantanmaiti2513]

Thanks for the info...I previously thought that only D2 and D3 are being used for interrupts ..

[@ElmousMed]

I ve enjoyed a lot Keep going bro

[@debashisdas7557]

Really nice tutorial.. And I have a question can u control more than one light bulb with this circui

[@6112oo6]

I NEED TO DO THE SAME THING, AND I NEED THE CODE FOR THAT!!! IF YOU HAVE ANY IDEA????

[@chaliskpito8634]

maybe it's late for an answer, it is possible to control several lamps, the idea is to create a delay management with an array, the delays must be distributed according to a decreasing (or increasing) sequence.

[@DaSnipz]

I'm planning to use this for speed control of a regular air fan. But I'm guessing I should use a snubber network to deal with the noise of the inductive load, right? Excellent tutorial btw, keep it up!

[@vovanikotin]

How did you connect oscilloscope to mains and not shorts its ground to AC ground?

[@ELECTRONOOBS]

Ave Vovus! Only connect the probe. Don't connect GND from the oscilloscope when working with AC. After the rectified wave you can connect GND as well.

[@vovanikotin]

Ok, this is important thing. Also check EEVBlog about it - How not to blow up your oscilloscope - kind interesting about correct connection osc to AC.

[@skumar716]

I have the same model scope, are you using the standard probe provided in 10x mode or you got some different probe for AC230v

[@diazpty]

Where do you connect the banana? Good job!

[@samhsavdr9647]

15watt 220v panel led dimmer adjustable circuit ....good idea .all people waiting

[@w.s.n.nemindara9510]

Thank you for the content.. Can we use this for control devices that use more than 1000W.

[@Adrian-Carstea]

Code is incomplete. Where is last_CH1_state declared?

[@bernhardfraunhofer4933]

i have the same problem

[@yasirshahzad3732]

ISR(PCINT0_vect){ if(PINB & B00000001) detectado=1; }

[@yasirshahzad3732]

Haha this code was extra with no functionality in this code, just replace with the following, thanks

[@SkjoyBd]

@@yasirshahzad3732 I have same problem.Given code generating error.

[@doncollins6795]

this is really helpful...... i tell you that!

[@michaelcanares5041]

Yeah! It works, thanks

[@24242424h]

hey bro, can we use this circuit to vary the voltage being supplied on an AC induction motor? do you think it will damage the motor?

[@caffeinatedinsanity2324]

Not a good idea. AC motors generally rely on a clean sine wave (or sine wave pwm) to be driven, and chopping it with triacs isn't really going to give good results. My guess is you might have to build (or buy) you own VFD, especially if you want to control speed, since the frequency of the AC current needs to be modulated. Changing the voltage will affect the maximum torque

[@RandomakerYT]

Not an induction motor. The only type of AC motor this will work for is a universal motor.

[@ShivamMishra-tf6cf]

Thanks for the video. I want to ask why have you added a delay after making the PIN3 HIGH.

[@mhzxtal922]

Hello Electronoobs, any procedure step for designing the app or any AIA code provided?

[@tanviralam8073]

Is it wise to connect ac voltage to breadboard ?

[@NeerparajRai]

Is it safe to connect dso directly to mains as the ground will b common for dso source and ac supply.??

[@maliarif2023]

Can we regulate ceiling fan via above mentioned circuit?

[@drslartibartfass]

Thank you for sharing. How did you calculate the 47k resistors for the optcopler in the zero detection?

[@charleslyell3748]

You have to consider the maximum current allowed in the diode and the peak voltage.

[@drslartibartfass]

​@@charleslyell3748 That is correct. You seem to believe I don’t know how to calculate resistors. Well, let’s see: VR=311V−1.2V=309.8V, right? IF=309.8/94000≈0.0033A, right? The datasheet says the EL718 needS 10 mA to 20 mA. All I wanted to know is: are you sure that 3.3 mA is enough to switch an EL817 optocoupler? It makes sense to go lower, since more current also means more heat dissipation, but 1/3 - 1/6 of the typical current seems a little low to me. On the other hand, I’m not an expert on mains, which is why I’m asking: how did you calculate the 47 kΩ resistors (in this case)? I did NOT ask how to calculate resistors in general.

[@omsingharjit]

And what is the size of prototype pcb is it fixed size in 2$ price !

[@Exotic_Chem_Lab]

Can i use it to control 1000W nichrome heating element?

[@PhG1961]

Great video ! What's the banana for ?

[@ELECTRONOOBS]

Philip Gevaert for scale. Lol

[@hectorbarrera9496]

Hi, nice video, I have a dummy question, how do you connect your oscilloscope, how can I see the the trigger pulse and the lamp wave?

[@michaparasol9892]

Graetza bridge to powered LED? Are you sure?

[@mani5004]

thank you so much. it worked perfectly.

[@bilalqasim2555]

which full wave bridge rectifier did you use?

[@mani5004]

@@bilalqasim2555 4 x 1n4007 diodes or 1 mb10m BR

[@bilalqasim2555]

@@mani5004 Actually I mistakenly bought a 2W04 bridge rectifier and its forward amps are 2.0 A. I connected it with my photocoupler and it goes bam. Can you give me any tip how should I reduce its amps to 0.5 mA? Thanks for replying btw

[@bilalqasim2555]

@@mani5004 If you have built the circuit and its working can you send it to me? If not then for zero cross which photo transistor did you use? and how many resistors you connect? because i tried the same circuit shown in the video and code its not working and my EL817 Phototransistor blow up. Any guidance?

[@mani5004]

@@bilalqasim2555 first check an ordinary LED with 4 1n4007 diode bridge rectifier in series with 100k 1/4 watt resistor. if it glows then connect it to the same EL817 optocopuler. it will work sure . follow rest of the diagram as in this vedio

[@universityofelectronics2410]

Excellent dear

[@pippiscariota]

Hi! Good job, i have a question: talking about soft start, if i use an ssr driving it in pwm, do you think it works?

[@noureddinebenakrim5458]

Who dislike this awesome video ??!!

[@rinoprihantoro155]

where the oscilloscope probe is connected so that it can be displayed on the screen? apakah di mosfet atau di output dimmer?

[@LEO-xo9cz]

How much was the postage for your boards?

[@konstantinostriotis7142]

Are you able to dim a LED lamp with that circuit?

[@crouserhd297]

Hello, i tried this out, but it doesnt give me an output voltage. Do I need to connect a load to see if it works?

[@Francirius]

When u connected the mains voltage to ur oscilloscope, u didnt connect the GND cable? Or did u had an isolation transformer?

[@TheTechnocrat]

I made this circuit and I am controlling brightness with a potentiometer. The dimming works, but I am getting visible flickering in my bulb. Could you please help me with that?? thanks!

[@camilo3116]

Tienes canal en español? you have channel in spanish?

[@ELECTRONOOBS]

camilo:3 yes, electronoobs España

[@xgamerbih]

one question: Did you connect the photocoupler to 220v? All I see is 220v going to the full bridge rectifier and then the photocoupler? Reading it's datasheets, the photocoupler accepts around 5-6V? Am I missing something here? The schematic shows like that too, just 220V, no step down converters or such.. thanks in advance!

[@charleslyell3748]

Bro, there are resistors in series with the diode that will drop almost all voltage.

[@MrPinolatino]

Hi nice job, what about solid state relè? Does it work with pwm for soft start?

[@manishkumarsingh9958]

great work Dude...

[@Stepanhuge]

Puede funcionar con un motor de los típicos de ventilacion para cuarto de baño.¿

[@sidharthap]

How are you probing AC mains without the big bad BOOM?!! Can you please explain.

[@chaliskpito8634]

hello, nice video and explanation, is there a way to use micro / millis instead of microdelay? thanks

[@pranavnatekar4183]

Great tutorial!!!One question, what about the loads above 200 Watt, what changes do I need ???

[@serjeelranjan8345]

Why I always misspell your channel name😜 by the way you are great.

[@ELECTRONOOBS]

Serjeel Ranjan which letter are you misspelling?

[@serjeelranjan8345]

You already know

[@carloscontreras7999]

Is there an update of the app?

[@princebanini]

my gosh, am in love

[@danielroibert5631]

Hello. thank-you for this video. But you absolutely have to explain how you connect your oscilloscope to the main 220V. Also how you mesure at the same time the input and output of the bridge rectifier :-) Without complète explanation some people’s will blow there oscilloscope or burn they house.

[@ELECTRONOOBS]

Daniel Roibert true and now I regret I didn't said that in the video! Thanks and keep up!

[@tripleakat]

Will this work with led lights with driver?

[@akibrahman1497]

Hello sir Please help me Can i use moc3052 instead of moc3051 And Can i use EL814 instead of EL817 Please answer me

[@charleslyell3748]

Yes and yes.

[@rudrakshavegad1999]

I like the idea of using 817 opto coupler. Is it good to apply 220v at input of pc817 . I saw it in your schematic

[@arushgupta5183]

Nice video. BTW you would not need a triac as the MOC3020 already has one :) It worked for me without the triac!

[@zuhaibchoudhary4635]

hello can you please tell me is it reliable to use triac for voltage controlling or is there any other method as someone told me when you control volatge with triac the current will increase very much

[@arushgupta5183]

@@zuhaibchoudhary4635 Triac is one of the two options I know voltage controls, (the other is with mosfet / IGBT) and triac is very reliable. BTW In the MOC3020 it is recommended not to connect it directly to load

[@zuhaibchoudhary4635]

@arushgupta yes I know dear but Mosfet and IGBT are for controlling DC voltages I am asking for any other method than triac for AC control

[@arushgupta5183]

@@zuhaibchoudhary4635 Oh, then I woyld reccomend triac cause that is the only one I know, do you know more?

[@zuhaibchoudhary4635]

No I also dont know anything elsw

[@b.shashanksunny1927]

I tried both of your project of given codes but there is no output. Pls help me give the program of to projects

[@englishinsambalpuri9364]

What's wattage of all resistor for this project specially 47k resistor ?

[@nguyenthuy9824]

Hi. Thanks your videos. Once question. is it posible to control, adjust AC lamp dimmer or AC motor speed by potentiomter and NRF24? if yes. At Which can I be seen? Thanks

[@derrickpro4105]

Wont there be a flicker since last_CH1_state was not set to 1 during the positive part, now during the negative part detectado is never set to 1, since last_CH1_state was not set to a one in the positive part.Let electronoobs tells us because am confused there and how does the map function work, i thought from a low to high conversion like valor= map(analogRead(A0), 0, 1024, 10, 7200)

[@黃彥承-z5i]

Shall I change any specification if my AC voltage change to 110V ? (BTW the link of the full bridge rectifier is invalid)

[@madhukeshnp]

well explained.....

[@maliarif2023]

wonderful work electronoobs,can you please tell me the name of Android application?

[@nomanmalik5215]

Hi, I designed the same circuit but I am getting only positive pulses at output, the negative half is completely clipped. Can you please guide what the issue is. The output of MOC3020 provides pulses in both positive and negative halves at the output but as soon as I connect those with gate of TRIAC, only positive pulses are there. What would be the reason (I already have replaced all the components).

[@er.jugalmandal7736]

Can we connect celling fan without using extra protection circuit because coils are making negative voltage and it will damage the TRIC and DIAC