AC 220V Heater Temperature PID and TRIAC control

Best & Fast Prototype ($2 for 10 PCBs): www.jlcpcb.com
Thanks to JLCPCB for supporting this video.
Two projects in one. I've merged the PID temperature control and TRIAC 220V AC voltage control in one tutorial. Control the temperature of 220V heaters.
Help my projects on Patreon: / electronoobs
my Q&A page: electronoobs.co...
Canal en Español: / electronoobs en español
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Tutorial webpage: www.electronoob...
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[@cheetahkid]

nice video and super colourful schematic. I built mine with MOSFET driven a trailing edge (triac only works as leading edge) circuit like ATTINY85. Nice and quiet without interfering my hearing aid.

[@aijazmuhammadkhan3139]

can you please help me with the AC heater...i can fine one similar to the one shown in video. How can i make this project without this heater and employing some other mechanism ?

[@UpcycleElectronics]

You probably should add a thermal switch/fuse to this circuit. I have several of these I have removed from old ovens and microwaves. If something were to go wrong in the circuit and the heating element gets overloaded, a simple normally closed thermal switch with an appropriate temperature rating could really improve the safety of this experiment. If you intend on leaving a design like this unattended for any reason, you should probably use 2 separate thermal switches placed in different locations. This topology/saftey circuit is standard in devices like microwaves. A small heater like this is not as dangerous as the power potential of a microwave, but for those of us experimenting with these things, we are just as potentially dangerous ourselves and should strive for double redundancy while planning for potential failures;) -Jake

[@elidiaz9861]

This channel has helped me extremely with my Senior Design Project. Thank you so much for your videos

[@reeseyme9613]

*FULL BRIDGE REC* ....wrong channel😂😂😂😂

[@FilipeDGuedes]

Reesey Me I thought the same 😂😂😂

[@jerichorivera1657]

This is what I've been waiting for Electronoobs. Im so happy that you finally uploaded this project. This will help me a lot. Im in the middle of my project on PID temperature control also. 😄

[@texasaggiegigsem]

I'm wanting to automate temperature control for roasting coffee, and it seems most people use a SSR to pass a PWM signal directly to the heating element. While I'm sure this is fine, high-current SSRs are expensive and I googled around for TRIAC-based control and found your video. I think this will work quite well for coffee roasting, and I can spend all my money on green coffee instead of an SSR.

[@fredkester6130]

Thanks very much. This principle is how I found it in a commercial heater element

[@ua89das7ufj]

Just wanted to say that I really enjoy these videos. Very good presentation of content, plenty of original project ideas, and broken down clearly. You are a 5 star man

[@youtubxkip]

Hint: your wave is jumping all the time, you can use AC as a trigger source to keep it stable and use AC input of scope as a reference to avoid problems triggering after triac. If OWON can do this, I'm pretty sure Keysight should as well.

[@rtarade1]

Filament Extruder !! I have been waiting for this project for very long time and collecting wasted 3D prints, support material hoping one day I'll make my own extruder and use it

[@pdebchoudhury4591]

this is a good project but i want to add triac cut off when a reed switch is closed . this can be used for hot air soldering station, when the iron is in stand , a reed switch is closed and the program will cut off the gate drive , or shall give a low pulse width. awaiting the add on in Arduino sketch and gate drive modifications. Thanks.

[@nandodecolo3781]

sir my schematic and things are correct, but the heater doesnt get hot, even a little, it just gives me a little vibration when i drag my fingers to the heating unit. is there any problem with the heater?

[@kanchanajayawardane7188]

Electronoobs dude i designed the band heater for water heating (immersed) the PID working properly but 2 to 3 degree deviations

[@princebanini]

Such an amazing video. I cant explain how happy i am to find this video. Please what is the maximum temperature that can be set?...Keep up the great work Electronoobs

[@bannyspear]

Hello sir thanks for the video from Tanzania ,i like your electronoob watch i'm waiting for the tut soon.love u

[@yasin_akar]

Giriş/Çıkış Pin Atamaları: Bazı pin atamaları tanımlanmış, ancak kullanılmamış gibi görünüyor. Örneğin, firing_pin, zero_cross, increase_pin ve decrease_pin tanımlanmış ancak kullanılmamış. Optocoupler Okuması: Optokuplörden gelen giriş okunuyor ve zero_cross_detected bayrağı ayarlanıyor. Ancak, bu kod parçasında herhangi bir yerde last_CH1_state değişkeninin başlangıç değeri atandığını göremiyorum. Bu değişkenin başlangıç durumu kontrol edilmeli ve atamalıdır. PID Kontrolü: PID kontrolü için kullanılan sabitler (kp, ki, kd) el ile ayarlanmış gibi görünüyor. Gerçek bir PID kontrolörü, PID sabitlerini otomatik olarak ayarlayabilen veya kullanıcı tarafından kolayca ayarlanabilen bir yöntem içermelidir. LCD Güncellemesi: LCD güncelleme sıklığı temp_read_Delay ile belirlenirken, PID kontrol döngüsü her zaman bu süre boyunca çalışmayabilir. PID kontrol döngüsünün çalışma süresi (örneğin, sıcaklık okuma ve PID hesaplama) hesaba katılmalıdır. PID Sınırları: PID değeri, belirli bir aralıkta sınırlanır (if(PID_value < 0) ve if(PID_value > 7400)). Ancak, bu sınırlar sabit değerlerle belirlenmiş ve PID kontrolünün ayarlarına bağlı olmalıdır. Buton Okuması: Butonlar için kesme rutini, debouncing (titremeyi önleme) yöntemi içermiyor. Bu, yanlış okumalara neden olabilir. Ayrıca, buton okuma işlemi delay() kullanılarak yapılmış, bu da kodun diğer kısımlarının çalışmasını engelleyebilir. Optimizasyon: Bazı delay() çağrıları, özellikle PID kontrol döngüsünde, kodun diğer kısımlarının çalışmasını engelleyebilir. Bu, PID kontrolünün sürekli çalışmasını sağlamak için önemlidir. Optokuplör Okuma Yöntemi: Optokuplör okuması için PCINT0_vect kesme vektörü kullanılmış. Bu, girişlerin herhangi bir değişikliğinde kesmeleri tetikler. Ancak, bu herhangi bir giriş değişikliğinde kesintiye neden olabilir ve bu gerekli olmayabilir. Optokuplör okuması için kesinti yalnızca sıfır geçişlerinde gereklidir.

[@zakariasaidi2191]

thank you for your videos, i have been waiting this one

[@romanspoljaric6032]

Do you have Arduino code? If you have, plese, send me.

[@82levy5]

I built your project and it's working great, except one issue. When the display refresh, i have a high pulse on the output. I tried with a lightbulb, and it pulsates. If i disable the display from the code, the control is linear, without pulses. There is any way to fix this issue?

[@aijazmuhammadkhan3139]

can you help me out please ? I have constructed the circuit but when i run it LCD is powering ON but is not showing any display i have used a potentiometer to vary contrast but still no results...can you help me with it ? I'm using an arduino UNO

[@ahmedboudi1808]

how to attach 220vac rectified directely to photocoupler pc814!

[@kacperbardecki3671]

Had a big scare following this video when I connected my oscilloscope probe to a heating element. Instantly shorted. Thought I broke something. Master Electronoobs, did you power your load from a transformer? Did you use a differential probe? Did you disconnect your oscilloscope from ground? All three sound like bad options. Not sure if I had probe ground connected to mains neutral or live; I think the residual current device in my circuit panel would trip regardless because I hear there's "very low impedance between neutral and ground." Sorry for geeking, thought I'd share my scary experience and KZbin research :) I still very much want to know what setup was used in the video!

[@ELECTRONOOBS]

Only connect one probe without ground. Also, you could use differential probes but those are expensive.

[@kacperbardecki3671]

Ok here's an idea. I'll connect oscilloscope probe ground to mains ground and oscilloscope probe tip to live load terminal.

[@kacperbardecki3671]

@@ELECTRONOOBS ah so the oscilloscope will use its own ground as ground. Super.

[@mcdaryllleno2902]

I hope you have a content teaching how to know the Kp Ki and Kd values.

[@JL0419ful]

Can this Triac support a 2KW heater?

[@P4K1TZ]

You meantion that the actual temperature fluctuation is +- a few degrees, which is ok.. Can you please elaborate on how to get a more accurate control of the temperature (tuning of the PID loop)? Also, is there a hardware solution to something like this where you wouldnt need an interrupt for the zero cross, but just feed a PWM signal to a chip which would then control the signal to the optocoupler based on the zero cross instead? I also noticed you didnt touch on using a heatsink with the triac, can you go into any amount of detail of when a heatsync might need to be used? A response here would be great and maybe a detailed video touching on some or all of these would benefit your community. Keep up the good work!

[@kanchanajayawardane7188]

This is a fantastic project

[@Yeffcriss]

Hello, I would like to do this project, it's possible to do this project with 110V? Because I'm from Colombia and I need to control a heat mantle

[@thomasvilhar7529]

Yes with a 110 V heater or if you use a 220V heater you get half the rated heat.

[@victorramos9779]

great proyect.... I try to uses in a Solder Iron Control, as Solder Station... a simple solder iron to 220VCA is cheap...only need a thermocuple... Regards from Perú

[@bunyaminaydin7203]

Bro did u do that??

[@arahmankabir8405]

Very fine project. Sincerely request Arduino base projects with dyeing machine temperature controller.

[@kaizoniumnh2405]

Why is it chosen to increase delay times with a fixed firing signal of 100ms than have a fixed firing pulse with variable delay?

[@marvingaubert1099]

Hello, I making a heated enclosure for my 3D printer, to do this I use a 2000W heater, and I want to control it by a PID controller, so my question is : with this medium can support 2000 W ?

[@ninogionnanevideos9452]

Why you used pin 8 instead of pin 2 interrupt ? Good video !

[@cyberspider78910]

you could have easily used Nano and saved a few bucks, I think !! Also, can i use MCT2E as optocoupler ? Q: could we not use attachInterrupt() in code ? A: No. It is meant for attaching interrupt to digitalpins as per documentation. Q: Can we not use PID library like QuickPID in a way ?

[@HETRM]

Thankyou for making this video

[@juliomaruyama]

Awesome video, thank you. Can I use freezer motor with same schema?

[@MohammadChangizi]

very nice tutorial. i whant to run 2 heating elements that each one is 2000W what modification is required for this amount of power?

[@hemantmundhe6662]

Nice look and work to your electronoob uno.

[@santoshbabu517]

Hi great tutorial very helpful.. it would be great if u cam add a countdown timer with heater too.... Looking forward for the project

[@photo-art-thomas-klee]

Sorry had forgotten, must be changed at this values also something: int PID_p = 0; int PID_i = 0; int PID_d = 0;?

[@muhammadsalimramadhan8916]

Electronoobs i very like this video that i need to make chef robot out of arduino. Hail !!

[@notofinterest]

Heaters especially on this temp r not the fastest... did it really need a phaseangle control? Wouldn’t it work with a ntc and a ssr as well?

[@ELECTRONOOBS]

Yes yes. But I will use PID control and also it was for the tutorial. Keep up!

[@redsnow123456]

How did you make the tests to specify your PID initial values ?

[@doufasmilz485]

I like you and your project

[@xyrussalvosa5132]

Sir do i have to complete the circuit first and plug in the 220v before i run the code? because the set temp is changing itself, and i didn put the 220v

[@PlanetarySymbio]

Your push buttons seems to be wrongly connected. All the best!

[@RogerTannous]

Can you make the same project but with control over the load's current instead of PWMing for voltage control ?

[@djajaproject6837]

thanks, its helpfull.....what is the 47k resistor function before the full bridge diode ?

[@RadixElektra]

it would be awesome if ya can explain the code also. ur videos are awesome! would love if you make a video series on arduino programming and interfacing (I2c, SPI, RS323, UART/USART etc.)

[@duanquan8854]

Beautiful explanation and exciting project. I have a small query if the system is a cooling system, we might have to connect the heater terminal to compress terminals in order to control cooling effect. Is that correct? Do you think the code will still work if the setpoint is -5°C for e.g.?

[@xz86]

Will 120v be different wiring? Or components change?

[@عبداللهالحمدلله-ي7ف]

i think it's the same

[@vishal01mehra]

Try making filament recycler.

[@MCsCreations]

Vishal Mehra Exactly what I thought! 😊

[@muhammadbasheer9225]

Dear Sir, your demonstration you are showing more than 210 degree it means possible to use more than 200 degree

[@akshaykumarvyas]

Instead of triac and opto driver can we use a solid state relay directly as it has both

[@paulmcfarland]

Very helpful video thanks. Would it be very difficult to implement this with a 3kw heater / 15Amps ?

[@octaviusgalacticus2253]

Hello, will this setup work if your ac heater uses 10amps at 220v?

[@daveyoung3965]

Hey, @Electronoobs this is AWESOME!! Thanks for putting this up and it's exactly what I am looking for to make a homemade candy maker and keep the candy at temp to increase my working time by keeping the candy hot in a hopper. One question is I am in the US and 120VAC. I think this will work if I understand because the photocoupler should find the zero cross point no matter the AC voltage. The one thing I would have to change is aximum_firing_delay to my electric. Is that correct? If not what would you change for 120VAC? The BTA16 TRIAC maybe?

[@jonahswain]

Dave Young this project should work fine for american 120V AC

[@daveyoung3965]

Thanks Jonah! Much appreciate the time to respond and confirm what I learned!

[@aijazmuhammadkhan3139]

can you help me out please ? I have constructed the circuit but when i run it LCD is powering ON but is not showing any display i have used a potentiometer to vary contrast but still no results...can you help me with it ? I'm using an arduino UNO

[@kaizoniumnh2405]

I constructed this circuit with lm35 instead of max6675 module and changed the code too but I can't get any reading im not sure why

[@albionqovanaj2158]

I did this project and the signal which goes to Arduino from EL817 is a continues signal even when the output voltage is zero. Why do you think this happens? So the signal is alwas 1.

[@miljanmiletic]

Hi can you show how to build a water temperature control for heating using a mixing valve that will be operated by a pwm servo

[@lucasvasconcelos7052]

Is it possible to use only one arduino and control two different temperatures on two different heaters simultaneously ?

[@jamescullins2709]

I have a question about the PID code. The PID_p, PID_i and PID_d are integers. but you multiply them the kp, ki, and kd which are floating point numbers. shouldn't they all be floats? or am I missing something?

[@nardaoeletronica]

Very good vídeo. congratulation.

[@allabouttech5689]

Hello sir, I have stop by to watch your video and it's very informative. Anyway I'm new here. Sir can you build digital temperature display like that one of KOOCU 852D rework station

[@danielmarucci9371]

For 110v need to change anything? I made the project, I adjust the temperature by the buttons, it changes on the LCD but the heater does not turn on. what is it about? Thank you very much for the tutorial and help.

[@aijazmuhammadkhan3139]

can you help me out please ? I have constructed the circuit but when i run it LCD is powering ON but is not showing any display i have used a potentiometer to vary contrast but still no results...can you help me with it ? I'm using an arduino UNO

[@aijazmuhammadkhan3139]

Hello electronoobs i have a question, can you please help me with the AC heater...I can't fine one similar to the one shown in video. How can i make this project without this heater and employing some other mechanism ? PTC heating element 220V/80Watt heater for egg incubation will be ok ?

[@javierdelaportilla1467]

what would you do if you want to control the icrease rate of temperature, I mean, the amount of degrees per minute to reach the setpoint?

[@HuseyinKaanKAPLAN]

Hi, this project is fantastic. Is it possible that you help me with add one more push button to start/stop heating with a free pin? For this purpose what changes had to be done on the code? Or any is there any other way to do it?

[@peterdkay]

Great video but scope waveform is not synced. Most scopes have a mains sync so you get a steady waveform.

[@isuruakalanka1354]

Can we use this method to Controll speed of the 220v AC Cooling fan

[@narinoguerra7656]

Awesome tutorial Bro...

[@divanshudodeja2822]

Supposing that I want to integrate this complete circuit into one board, how can we still detect the zero crossing, since, in your circuit, you are using a separate supply for Arduino. I want to use the same rectified supply provided after the bridge rectifier.

[@blankstate683]

Hi. Great videos. i am working on a project myself and was thinking of using band heaters.. how hot can these band heaters actually get? and can you heat up say, 4 all at once from a 12v 20a 250w transformer? or would i need say a 24v 40a 1000w transformer so it could handle 4 x 220v? Help with this information would be much appreciated.

[@عبداللهالحمدلله-ي7ف]

thanks very good job, مشكور

[@prakashsharma5910]

Can I increase the temperature with respect to time For example the temperature increases 100°c randomly than after that temperatures it's increase 10°in 1min or 1°in 1min

[@MCsCreations]

Great work, dude! 😀

[@LonganLee]

Did KZbin unsubscribed for me? Now I re sub

[@diogofigueiredo3378]

Awsome! Is it possible to buy this solution as a "plug & play" for my project?

[@sharp_guy2310]

Y we are using zero crossing detection? I can't understand that

[@IosifVitalis-mg2wh]

I want to know if it is a difference between EL817 and PC817 and if i cand use PC817?

[@joshuavincent7884]

why do we need to measure the zero cross point of the mains power? cant just control it like an duty cycle output from the arduino?

[@pasans8858]

Can create this temperature control for a microwave oven? My question which part of the microwave oven do i connect the sysem to?

[@lucasvasconcelos7052]

Hello can you please help me I am utilizing this code and it does not seem to be working properly anymore, the heating element does not stop heating when it reaches the set value. I believe the zero cross interrupt is no longer working.

[@moejoe987654321]

Would this be worth building for temperature control of a ~9 cu. ft. oven for powder coating or would a $30 PID controller and relay be able to keep something with that large of a volume at a decently consistent temperature?

[@earhlemmanuelacedilla4346]

Can i replace the 220V heater with a Heating element?

[@electronic7979]

Useful video

[@aijazmuhammadkhan3139]

Can you provide Gerber files to get the PCB for this project.Thanks

[@maximilianr714]

Hey, what if i want more exact temperatues? For example 35.6 °C ... is this possible with this scematic? Thank you... great video :)

[@deepakmittal4633]

Nice work sir

[@Arquetipo13]

Someone can explain me what the resistors connected to the rectifier are for? I’m trying to build this and end up with this doubt

[@joshhagen4182]

How would I be able to go about using this pod setup to control two different heaters both using a thermo couple?

[@sayalijoshi5010]

Hi I tried this project. But it isn't working. The heater is not getting heated. I live in India . So I think my AC Cycle isn't syncronizing with the firing pulse.

[@joyelreeves3692]

Hi is it showing heater fail alarm if the heater coil becomes defective?

[@babyspot_toys]

kindly guide me i want the same circuit control like in the video but my load is a 5KW heater 220V kindly guide what changes should i do in above circuit to make it work.....!

[@keyvangaroosi4694]

Hi. this video is very good. can you help me to run this project with a touchscreen lcd?

[@nam_8bit904]

Can you show me how to find the PID constant How do you find the constants in this controller?

[@santoshbabu517]

Hi electro... I have tried to make one for my dip solder but not able to detect zero cross I think. When zero cross connected to arduino no heating when I disconnect heater heats up but no temperature control.. How can I detect zero cross plz help..

[@josuevillasante2546]

Great video my friend

[@gtechninja]

really thank you, bro. but I have one question. what if the heater requires more than 16A say 25A. is it possible to use the whole circuit just by replacing BTA16 with BTA25. thanks for your time and help.

[@Wilson84KS]

Yes, but better use MOC3063 it can handle up to 600V, MOC302x is for 400V max., atleast in Germany such devices must atleast take 600V, because of possible peaks asmuch I remember, from your name you are from Poland I guess, should have the same standards, in any way more safety is always better and they cost the same.

[@oishikmukherjee3722]

How did u tune the pid controller and decided kp ki and kd values? I need to control current for my current mtech project. I am sensing current with ACS712 sensor. My current set point is 15 amps, maximum current is 20 amps and voltage is 100 v ac

[@nandodecolo3781]

what other type of TRIAC and optoisolator can i use because its not available in our country

[@vicmagbanua8525]

what should i do if i want 3 heaters simultaneously?

[@alucardkrk]

can i use ssr instead of triac here?

[@hirdeshbajwa8906]

What temperature probe did you use? I have the ds18b20 probe