Bluetooth TRIAC AC power control 

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

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!

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.

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

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

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!

Thank you, I now understand trials.

i like him . because he give answer of our comments

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

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

Such a good tutorial. You could be the professor

Really Nice finally i understood how to make dimming controller device

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

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

very nice project also presentation. thanks

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

congratulations another beautiful tutorial

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.

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

Fantastic work, man! Really, really nice! 😀

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

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

hello everyone.. Great video brother.. i tried it and it came out good.. i just want to make some changes in functionality.. i want switch on the bulb with incrementing brightness but WITHOUT POTENTIOMETER. and WITHOUT THAT APP. i am new to coding ,can anyone help me out with that part ?

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!

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

Nice and knowledge full video bro thanks dear

wow this is what i'm looking for thanks.

Excellent dear

good project

Code is incomplete. Where is last_CH1_state declared?

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

Great job sir, nice project

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

I am trying to do the same: 1- sleep between 0 to 10ms after zero detected 2- turn 1 the pin 3- sleep for 100us 4- turn off the pin but my fan is behaving like drunk - unstable I am not sure if this is fan issue or what While detecting edges, we shall see 2 times per Hertz, right? So 100 per second

Actually, it's 230 V, not 220 V. This was changed a long time ago here in the EU, Russia and Ucrania. Check this (in Spanish): es.wikipedia.org/wiki/Electricidad_dom%C3%A9stica#Historia_de_tensiones_y_frecuencias. It might be 220 V if you're far away from the supply cables that go to your house (which are guaranteed to give 230 V ± 7%) because of the voltage drop. I confirmed this: if I turn on a high power device (like a radiator), the voltage drops. Sometimes the voltage goes to 210 V or less, and that's when my line-interactive UPS' relay clicks and steps up the voltage to 230 V. I wish all this was finally unified sometime and all countries used the same voltage, frequency and plug type! I'm working on a new plug type which I'll use in my smart plug (Kickstarter coming soon), but it'd be difficult to do something about the voltage or frequency (bulky transformer for voltage and maybe a matrix converter for frequency, easier said than done).

very very awesome working

kindly share its proteus simulation as well

Where do you connect the banana? Good job!

Perfect idea. 😀

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

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

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

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?

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

🆒 Thank you so much for uploading this video. aia file link is not opening. Could you please fix it? Thanks a lot

why duty ratio of PWM do not decrease and increase??

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

Is it wise to connect ac voltage to breadboard ?

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?

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???

Esperare el tutorial en español :)

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

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

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?

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

it is better explanation but u also some of assembly code u write in ardino also u need to explain can u do that for me

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

well explained.....

When you measure the AC Voltage on the bulb contacts, will it always be 220v but duty cycle will vary from 1-100%?

Hi bro first of all thank for this job .i want to do same think using three phase can you guide me.

Plz make video how to control with blyk and esp8266

Can anyone tell which full wave bridge rectifier is used? Link for ebay is not working.

Supper video i love it

my gosh, am in love

What sense has variable last_CH1_state in your code, when it is always zero? I see no sense. Am I right?

Great Sir

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

By using this method we ca controll speed of 600w universal motor

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

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?

Hi I see a lot of poeple on the comments want to to use an ESP8266 or ESP32 and not Arduino Uno. How can we have 3,3v and not 5v at the output of optocopler ? Thanks

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

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

Great video ! What's the banana for ?

i want to merge this with car controlling ...please help how to code

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

Why two resistors 47k insted 100k?

Excelente video! Una consulta, sería posible utilizar software serial para la comunicación bluetooth? Quiero implementar un control de velocidad comunicado por RS485 sería muy útil poder usar el puerto serie para debug y software serial para la comunicación 485. Muchas gracias!

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

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

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

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

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!

This is for current control am ı right?

how to control multiple of load?

Might you help me!! I'm trying to do this project for my power electronics class! and then I built everything the same, the problem is that the focus remains blinking a lot, I control it with the application and in any position of the app slider the focus flashes, sometimes even the light goes down well. What will it be? In my country it is voltage 120, will that be why? another thing is that I am using the triac bta 12. Help!

I don't know your data from phone transmit to HC-06, i need to define value from app

Nice

Is frequency gets changed by using triac. Also can I use a bridge rectifier instead of bulb for variable DC power supply. Can i use digispark attiny 85 instead of arduino uno(i don't need bluetooth)Please reply it Thank you

Is there an update of the app?

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).

HOW ABOUT IF I NEED TO USE 3 OR 4 ANALOG PWM OUTPUTS INSTEAD AND USE ALL OF THEM INDEPENDENTLY OR SEPARATELY, WHAT WOULD IT BE THE CODE FOR THAT????

sir. can i control speed of my AC ceiling fan by using that Schematic and code (Bluetooth) ?

hello, i need a bit help. i am able to control brightness of light through bluetooth but the problem is that, how to add simple on/off program in the same code. actually, i am facing problem when i add some code for relay etc. for instance, if(variable== 'R') { pinmode(relay, high) } help will be appreciated. thanks

Is it possible to do this with just an arduino, triac and a TDA1024 ?

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

Hice el mismo circuito, pero en vez del optoacoplador+diac+triac use un ssr, pero no funcionó, alguna idea del Porque ?

can I use arduino uno?if I use do i need to change the pins

Hi, I guess it's surely possible but just to be sure. Can we use the same schematic just switching the arduino with an esp8266 to make the dimmer wifi controlled ?

Hi, I watched the video. I have a question, what value did you pass to arduino when you created the app?