DIY Air Quality Monitor - PM2.5, CO2, VOC, Ozone, Temp & Hum Arduino Meter

  Переглядів 360,537

How To Mechatronics

How To Mechatronics

3 роки тому

Altium Designer Free Trial - www.altium.com/yt/howtomechat...
Altium 365 viewer: www.altium.com/viewer
Code, 3D models, Parts List and more details ► howtomechatronics.com/project...
I ordered the PCB from JLCPCB: jlcpcb.com/
If you enjoy and find the content that I make useful, please consider supporting me on Patreon: / howtomechatronics
Parts list (check website article for full list, affiliate links):
Amazon.com:
PMS5003 PM2.5 Sensor: amzn.to/3aK3djj
MH-Z19 CO2 Sensor amzn.to/3rBJLem
Nextion 2.8″ Display: amzn.to/3aIoutI
Banggood.com:
PMS5003 PM2.5 Sensor: bit.ly/37SkSn6
MH-Z19 CO2 Sensor bit.ly/37SJDPR
Nextion 2.8″ Display: bit.ly/2MgiMVJ
Poor air quality can lead to many negative health effects as well as can cause tiredness, headaches, loss of concentration, increased heart rate and so on. Monitoring the quality of the air may actually be more important than you realize. So, in this tutorial we will learn how to build our own Air Quality Monitor which is capable of measuring PM2.5, CO2, VOC, Ozone, as well as temperature and humidity.
Visit HowToMechatronics.com for more Tutorials, Tips, Projects and How It Works videos:
► howtomechatronics.com/
Like my page on Facebook:
► / howtomechatronics

КОМЕНТАРІ: 389
@HowToMechatronics
@HowToMechatronics 3 роки тому
I hope you enjoyed this video and learned something new! If you'd like to support me making more content like this, please consider supporting me on Patreon: www.patreon.com/howtomechatronics
@syedsulaiman8380
@syedsulaiman8380 3 роки тому
Why have you been SO inactive during the past couple months
@Sonex1542
@Sonex1542 3 роки тому
You really should need to form a KIT COMPANY for STEM. Many kids and adults would benefit from a subscription where each of your wonderful kits would teach them much more than they could learn in schools. Your amazing skills should not go to waste. I'm surprised how much effort you put into these projects, you are great engineer, teacher, and person to provide these great ideas and videos. The biggest problem for individuals is sourcing small quantities and the waiting from each vendor on parts. A kit would allow people to quickly move forward to learn and enjoy. The only item would be the 3D printer, which many people who are interested in STEM already have.
@hareemqwerty1272
@hareemqwerty1272 3 роки тому
Please RASPBERRY PI 4
@En1Gm4A
@En1Gm4A 3 роки тому
Can one buy this fully assembled ?
@diyk-h-m2423
@diyk-h-m2423 3 роки тому
hello brother can you tell me how about to use sleep mode LCD 2.8 inch TFT types SPI with arduino uno please brother . thank you your video bro
@bertramusb8162
@bertramusb8162 2 роки тому
Hey man, just wanted to complement you on your thorough explanation of the function of each sensor, especially including brief info on sources of contaminants. You get a lot of info in without getting off track or droning on and on, and it makes for a great video.
@haneen3731
@haneen3731 3 роки тому
Your tutorials are great and I appreciate that you provide the STL files. However for those of use that want to learn to design specifically mechanical parts and robots, it would be great to have a series that explains more of the designing process! Thanks for sharing your knowledge and creative projects!
@DivyanshMMMUT
@DivyanshMMMUT 3 роки тому
Thanks for explaining how the sensors actually work 🙏
@kevin2706
@kevin2706 3 роки тому
your channel is one of my best discoveries, thank you
@tzisorey
@tzisorey 2 роки тому
I like how he explains how the sensors work on a mechanical basis, not just how they're used electronically. I should build one of these, for my oil painting area. At least the VOC part.
@VenturaIT
@VenturaIT 9 місяців тому
You can get a Sciosense APC1 evaluation kit for that, just plug it into your laptop and use the software they provide for that. The evaluation kit is different than the sensor by itself, the evaluation kit (EK) comes with the usb cable and software and it works perfectly for 1 sensor.
@bict24
@bict24 2 роки тому
Great Project. Thanks for explaining how the sensors actually work.
@naeemulhoque1777
@naeemulhoque1777 7 місяців тому
this build is so clean
@jantepas7511
@jantepas7511 3 роки тому
Great project, and integration with home would be great! Thanks for this project!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Glad you like it!
@lidarman2
@lidarman2 3 роки тому
This is awesome. I was going to make something similar a couple years ago but had trouble finding a decent ozone sensor and the VOC sensor I have is basically useless. I also want to add a GPS for portable use..
@batchrocketproject4720
@batchrocketproject4720 Рік тому
Fabulous build. Thanks for posting and for all the linked details. 💯👏
@hyungmonam5903
@hyungmonam5903 3 роки тому
wow! Great project and tutorial as always! thanks a lot!
@josemanuelalogoadjomo7863
@josemanuelalogoadjomo7863 3 роки тому
nice content as usual, thanks!! pls the code explanation part is not boring at all, in fact is the most relevant part of a project, kindly do not be skipping it!!! most of the times i have got to learn new programming concepts trough your code explanation.
@HowToMechatronics
@HowToMechatronics 3 роки тому
I will keep that in mind, thanks!
@hendrikwicaksono7245
@hendrikwicaksono7245 3 місяці тому
​@@HowToMechatronicscan this instrument record and save the data?
@mayxnerde2952
@mayxnerde2952 3 роки тому
For the rebuilder: Correct resistors values: R1 = 1K, R2 = 2K, R6=100K or 1M, R7=1K have fun , Mike DF7MR
@mikeg3660
@mikeg3660 Рік тому
Excellent design and build. Thanks for sharing.
@user-fc8lm7ll1b
@user-fc8lm7ll1b 3 місяці тому
My greatest compliments for your design. I build it and it works perfectly. Very good thinking about features and timeline. I made some adjustments so I can easely exchange sensors, but for now I cannot imaging what I should change. Calibration is for me less important compared to more or less value readings. Maybe the loss of data when disconnecting the power could be a minor issue to solve. Thanks for all your time! Great job!
@francenred1415
@francenred1415 Місяць тому
Hello! I'm a student and I need to build this for my studies. Could you please provide the materials you used and where did you order it, if you don't mind? It will help me a lot. Thank you!
@wegsteryt5524
@wegsteryt5524 3 роки тому
Congratulations on 500k subscribers!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks!
@vasilypuupkind626
@vasilypuupkind626 3 роки тому
Thank you for ideas for really useful project. Happy new 2021!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks, same to you!
@leeoliver2969
@leeoliver2969 3 роки тому
A fantastic video. If you decide to carry on with this project a carbon monoxide sensor would be a great addition to help protect people who use gas for heating.
@schinderiapraemeturus6239
@schinderiapraemeturus6239 2 роки тому
very cool project, you have inspired me. We need a customizable portable VOC sensor at our company for our service techs, this would be a great option. Thanks!
@JohnTurner313
@JohnTurner313 3 роки тому
Nice build!
@wolfgangrupp5297
@wolfgangrupp5297 3 роки тому
Hi, Another great project, perfectly implemented Greetings Wolfgang from Germany
@HowToMechatronics
@HowToMechatronics 3 роки тому
Hey, glad to hear it, thanks!
@newportmeister
@newportmeister 2 роки тому
Brilliant, thanks for this.
@kenbarbee2672
@kenbarbee2672 3 роки тому
Great Project - Got everything on order! Can't wait to build! Can you point us to a complete bill of materials for the passive PBC components?
@shafiqalom8408
@shafiqalom8408 3 роки тому
Really nice and realtime project that can work as well as weather station, super 💙💙💙
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks! Well yeah, the possibilities with this project are endless. I mean, you can modify it however you want.
@caiolira09
@caiolira09 3 роки тому
awesome project as always!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you! Cheers!
@edslab5383
@edslab5383 3 роки тому
High-quality content, congratulations!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks!
@SirHackaL0t.
@SirHackaL0t. 3 роки тому
But low quality air! CO2 that high means you need more ventilation in your bedroom.
@guinieroo
@guinieroo 9 місяців тому
Great video! As a environmental eng, I can tell you thats amazing. Low cost and very good precision. Did you comparate with a real sensor, like a industry sensor?
@electronic7979
@electronic7979 3 роки тому
Nice project
@shakerileiwat4341
@shakerileiwat4341 3 роки тому
Beyond wonderful ♥♥♥
@null_carrier
@null_carrier 3 роки тому
Excellent device and content in general. Thank you.
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you!
@TrueMachine2
@TrueMachine2 2 роки тому
Nice work!
@voicesarefree
@voicesarefree 3 роки тому
Super cool! Has me considering a touchscreen and custom PCB as well. Only thing I would change is to network the device and log the measurements somewhere that Home Assistant can integrate.
@HowToMechatronics
@HowToMechatronics 3 роки тому
Yeah, that would be better!
@williamwatkins821
@williamwatkins821 2 роки тому
What would be the best way to do that? I’m trying to integrate this into my HomeKit using homebridge.
@tza50
@tza50 11 місяців тому
Through an esp8226 potentially
@Freestila
@Freestila 3 роки тому
Ever thought about using an esp to integrate in smart home systems instead of the arduino? Would also have 3.3v diectly
@pasha12343
@pasha12343 3 роки тому
Most excellent work 👍🙂
@shehrammalik7890
@shehrammalik7890 2 роки тому
Very good and very informative video. The next upgrade to this project should be an air purifier. The air quality will send feedback to the fan when the desired value is achieved, the fan will automatically stop.
@sajalacharjee7008
@sajalacharjee7008 3 роки тому
That's a cool idea
@munkhnar9807
@munkhnar9807 3 роки тому
Amazing project!!!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you!
@keeganpretorius847
@keeganpretorius847 Рік тому
Awesome video!
@daichimax
@daichimax 2 роки тому
Thanks for sharing your knowledge!
@HowToMechatronics
@HowToMechatronics 2 роки тому
My pleasure!
@dmitriypak6405
@dmitriypak6405 2 роки тому
Very good educational video! Thank you!
@kevinputraadiwijna463
@kevinputraadiwijna463 3 роки тому
Awesome explanation as always. Out of curiosity, did you consider using BME680 sensor from Bosch during the design phase? Because it does the work of PM503 and DHT22 combined, plus it even has some kind of pressure sensing, which affects whether pollution levels build up.
@RatingARKReviews
@RatingARKReviews 3 роки тому
Great video and very informative!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Glad it was helpful!
@andreyshade84
@andreyshade84 3 роки тому
Such a good tutorial, thanks
@HowToMechatronics
@HowToMechatronics 3 роки тому
Glad you enjoyed it!
@PhG1961
@PhG1961 3 роки тому
Really awesome video ! Thank you so much, this is great stuff !
@HowToMechatronics
@HowToMechatronics 3 роки тому
Glad you liked it!
@jstro-hobbytech
@jstro-hobbytech 2 роки тому
That's awesome. Acrylic is 200 dollars a sheet where I live in Canada
@isprithul
@isprithul 2 роки тому
I was just wondering, why not use BME280 for temperature and humidity measurements? It has much higher resolution and accuracy than the DHT22. Air pressure reading is a bonus.
@letsmakeit1973
@letsmakeit1973 2 роки тому
Great video!
@ProfKetrabPL
@ProfKetrabPL 3 роки тому
Amazing as always :D
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you! Cheers!
@hamzaaabouz3711
@hamzaaabouz3711 3 роки тому
Woow Good job ❤😍
@David-oq6tv
@David-oq6tv 2 роки тому
Thanks for all the great information! Do you have any recommendations for a company that 3D prints cases? I'd like to do something similar but hide the inner workings.
@Bianchi77
@Bianchi77 2 роки тому
Nice video clip, keep it up, thank you :)
@balajireddypanta8797
@balajireddypanta8797 3 роки тому
we are waiting for your next project
@vigasan
@vigasan Рік тому
Great video, I made a similar system based on ESp32 without display but It can be integrated in home Assistant so you can check data also remotely
@Dreamtheimpossible38
@Dreamtheimpossible38 9 днів тому
Hwy there Would you like to share details please?
@igorenduro
@igorenduro 9 місяців тому
Отличное видео, спасибо за гайд друг!
@dozog
@dozog 2 роки тому
Don't get me wrong, the thing is very well made, and I understand that not everyone is comfortable around ESP8266, but this project seems to be a perfect fit for one of those. - No need for RTC (just get time from internet (at power up) ) - Upload new sketch over the air. - Check your graphs and data on any android phone (can even skip the display.. which is expensive)
@HowToMechatronics
@HowToMechatronics 2 роки тому
You are absolutely right! Thanks for the input!
@acerrusm
@acerrusm 2 роки тому
RTC is always needed as backup in case when your internet connection is down
@dozog
@dozog 2 роки тому
@@acerrusm You can always display the current values from all your sensors You can also always collect values based on relative time (every x minutes), display those and sync the time axis with the internet time when it becomes available. The internet in my place is seldom down, and never for more than an hour.
@TheUnofficialMaker
@TheUnofficialMaker Рік тому
@@acerrusm not really, if not real time-sensitive, in my experience internet down does not happen much, maybe different in your country.
@ifell3
@ifell3 3 роки тому
Great video, I would like a fan going over the sensors separate from the 2.5um sensor thing though.
@HowToMechatronics
@HowToMechatronics 3 роки тому
Well yeah, maybe that would be a good idea.
@dflores_ucv6125
@dflores_ucv6125 Рік тому
THANKS
@tesev.7703
@tesev.7703 2 роки тому
great video!
@freesaxon6835
@freesaxon6835 3 роки тому
Excellent video and project
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you! Cheers!
@trader_gu
@trader_gu 3 роки тому
Very well presented. How do you make animated sketches such as how the PM2.5 sensor is working (2:07)? Which software:)? Thanks for sharing, this video is gold.
@joylessdave
@joylessdave 3 роки тому
have you thought of adding an NO2 sensor, as you are already monitoring O3 you can correct for the crosstalk of o3 with no2 in the no2 sensors. no2 being one of the main air quality pollutants causing problems.
@ronm6585
@ronm6585 3 роки тому
Thank you.
@dreemcomputer2284
@dreemcomputer2284 2 роки тому
Beautiful
@altitude1039
@altitude1039 2 роки тому
Wow! This is great! If it also included Radon and Carbon Monoxide I would definitely buy one. Do you sell these?
@blackrose8092
@blackrose8092 3 роки тому
Fantastic work 👌👌👌
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you! Cheers!
@jimadams7765
@jimadams7765 3 роки тому
Excellent vid. Happy holidays. 💙💚💛🧡😎
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks, same to you!
@guregori_san1188
@guregori_san1188 Рік тому
your a genius
@de_jaeger213
@de_jaeger213 3 роки тому
Nice video and always nice project
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks 👍
@VolumetricDesign
@VolumetricDesign 3 роки тому
Amazing Video Love it!
@HowToMechatronics
@HowToMechatronics 3 роки тому
Glad you enjoyed it!
@MrRenoman2011
@MrRenoman2011 2 роки тому
This is a great video. Is the circuit board available through you. I tried going to the site that makes the boards but there were many questions I did not understand. Thanks
@piconano
@piconano 3 роки тому
Excellent project for the right person. I built one 3 years ago. No LCD, since I used a ESP8266 module instead of a promini, and did everything through the browser. I only installed DHT-11, MQ-5, MQ-3, MQ-9 and MQ135, VEML6075 UV sensor, and DSM501A PM2.5 dist sensor, which was $4! I think my project cost about $25-$30 Yours is in excess of $100 without a PCB.
@HowToMechatronics
@HowToMechatronics 3 роки тому
Yeah, that's true, the sensors I used are not the cheapest, but of course are more accurate and reliable.
@Dreamtheimpossible38
@Dreamtheimpossible38 9 днів тому
Hey there Would you like to share details please
@gerardbrunet6929
@gerardbrunet6929 3 роки тому
Very nice project, thanks. May be a better sensor for temperature and humidity, the DHT22 is not very accurate.
@msmazzo
@msmazzo 3 роки тому
This is excellent, may use this for my reptile enclosures! I get paranoid they aren't getting good enough air quality.
@IngoMich
@IngoMich 3 роки тому
Just let your kids play outside once in a while :D
@JGoberdhan
@JGoberdhan 3 роки тому
Great project
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks!
@lucdrouin2625
@lucdrouin2625 3 роки тому
Excellent choice of project! Why? People have been spending much more time indoors during this year of the COVID-19 Pandemic. Providing a completed working system and not just a prototype was wise. Because this project is important to the world's population right now, I would suggest: Phase 1, 2, 3, etc ... future upgrades of this project that would verify accuracy or readings, allow internetworking of nodes and of course IoT. Thank You Sir!
@coster1983
@coster1983 3 роки тому
Excellent project, soon to appear on Wish for $21.99 delivered next month!
@davenaidoo1286
@davenaidoo1286 3 роки тому
It's one month later now. Hmu with a link my g😂
@jstro-hobbytech
@jstro-hobbytech 2 роки тому
I love the code
@maggiegendy175
@maggiegendy175 Рік тому
Hi Dejan thanks for the amazing project I was just asking about the Mq131 sensor, its mentioned in the datasheet that it should be preheated for 48 hours It is also mentioned for Mq7 sensor that i want to use ? can u guide me throgh this? Can i use the sensor straight away after purchasing or should i do the preheat procedure ? and how can i do that ?
@pygeeks1545
@pygeeks1545 2 роки тому
owesome!
@andycrask3531
@andycrask3531 3 роки тому
Yes another top quality project worth the wait :)
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thanks!
@utkarshv3110
@utkarshv3110 5 місяців тому
super awesome
@raulHernandez-lb4zj
@raulHernandez-lb4zj 3 роки тому
Miss you buddy
@dkeisk
@dkeisk Рік тому
Bravo 👏👏👏 . One question though 😋 i would like to send data to an api endpoint like grafana to keep track of the registered data. Any idea if this is possible?
@adminad517
@adminad517 3 роки тому
Awesome
@maxhouseman3129
@maxhouseman3129 3 роки тому
Nice quality and explanations. Respect for the handwork, I mostly use a laser for it 😎 Greets from a medical engineer.
@HowToMechatronics
@HowToMechatronics 3 роки тому
Thank you! Well I do plan to make a CNC machine so I don't have to make things like those by hand. Cheers! 😀
@maxhouseman3129
@maxhouseman3129 3 роки тому
@@HowToMechatronics that's a good idea! Do you share your build process here?
@hernandovasquez1801
@hernandovasquez1801 Рік тому
Congratulations for this project, I wonder if this detects dangerous gases as hydrochorich acid fumes or others, I'll appreciate your answer
@LarkspeedNL
@LarkspeedNL 8 місяців тому
A very nice project that I was very much interested in for VOC monitoring until I realized that you can actually buy an air quality monitor that covers VOC's for less than just the PM2.5 sensor in this project costs
@b0br0ff1974
@b0br0ff1974 3 роки тому
Hi, very nice project. Do you have similar project based on ESP32? Would be nice to have integration with smart home and reporting via Mosquitto.
@StefanoKocka
@StefanoKocka Рік тому
1:51 and 4:20 those can help detect particles and ozone gases made by laser printers.
@whiteflag2366
@whiteflag2366 3 роки тому
Very cool. How much is costing one all-ready build?
@muhammadfurqanraza3604
@muhammadfurqanraza3604 3 роки тому
Hey. Its good to see your work and effort as it motivates us. I want you to tought us about the a drone of our own.Can you make a video on drone project
@hrithikhu
@hrithikhu 3 роки тому
I was eagerly waiting for your videos bcoz your video ideas are very unique and very informative. But you post once or twice a month. It would so nice we you could do atleast do videos a month.
@HowToMechatronics
@HowToMechatronics 3 роки тому
Trust me, I do my best. Making videos like you named them "very unique and very informative" is very time consuming.
@hrithikhu
@hrithikhu 3 роки тому
I really appreciate your time and efforts 😍
@Morpherinc
@Morpherinc 3 роки тому
Hello, Did you manage to compare the acquired data with a calibrated source or calibrated sensors? I am mainly interested in the PM2.5 sensor. Regards!
@bobojenkins5805
@bobojenkins5805 2 роки тому
Exactly
@PatienceNzuza
@PatienceNzuza 5 місяців тому
Can you include temperature / heat generator which will turn on and off within specified range of temperature and humidity. Ventilation when co2 is higher than required
@muhammadibraheem1956
@muhammadibraheem1956 Рік тому
I am interested for this project making for my FYP
@negotiummeum9643
@negotiummeum9643 2 роки тому
Good project. Now add CO, HCOC, PM10 and it will be one of best air quality meters!
@hugodc1225
@hugodc1225 2 роки тому
Actually for the PM10 @2:27 the sensor can already switch between them and the upgraded version can do somewhat better (PMS7003) what are the others polluants are you talking about? HCHO? sry not really my field. I'm interested in making one of these air monitor based on that one.
@negotiummeum9643
@negotiummeum9643 2 роки тому
@@hugodc1225 Oh so PM1 and PM10 are included? That's great! I missed that one, sorry:) Well HCHO (hcoc was a typo) (although the real formula always used to be CH2O ... dk why manufacturers have changed it to HCHO) is Formaldehyde - one of biggest indoors pollutants nowadays to worry about. And CO (unlike CO2) is Carbon Monoxide - an infamous "silent killer"! The stuff is lethal. There could be a fire in neighbor's flat and CO can kill you even before your smoke detector/alarm triggered. Although of course it is worth to have CO detector alone (next to Smoke detector) in few places of your home.
@melbourneopera
@melbourneopera 3 роки тому
I would if it needs to calibrate for knowing its accuracy,tolerance, error etc.
@abhijeetkumargautam3923
@abhijeetkumargautam3923 2 роки тому
Hey, thanks for the superb presentation, can I get the ready made model from your side please, I can cover up the expenses as well!
@willemkossen
@willemkossen 3 роки тому
very nice. Would it be possible to add a wifi module to the project to make the values accessible for home automation software over network, like domoticz or home-assistant?
@DaveMcLaughlin
@DaveMcLaughlin 2 роки тому
Just redesign with an ESP8266 and you'd have WiFi and all of the other code would work.
SCD40 - новый "народный" датчик CO2
15:38
Клуб любителей электроники
Переглядів 15 тис.
Workshop Air Quality Meter, Explained.
20:52
Frank Williams
Переглядів 12 тис.
[실시간] 전철에서 찍힌 기생생물 감염 장면 | 기생수: 더 그레이
00:15
Netflix Korea 넷플릭스 코리아
Переглядів 37 млн
Не покупай эти гиперзаряды 👎
00:36
I PUT MY ARMOR ON (Creeper) (PG Version)
00:19
Sam Green
Переглядів 3,1 млн
Кровосток - разговор с легендами / вДудь
2:12:57
An ACTUALLY smart air quality monitor (it's open)
11:54
Geerling Engineering
Переглядів 68 тис.
Measuring Air Quality with ESP32 & Arduino
1:01:13
DroneBot Workshop
Переглядів 103 тис.
5+ Best Carbon Dioxide Monitors - Aranet4, Vitalight, CO2.Click and More!
17:00
Arduino Air Quality Sensor Tutorial With WiFi
26:16
Go Green Post
Переглядів 21 тис.
Measure All The Things - 1 - Pollution Sensor (PMS5003 particle sensor)
15:46
Your home's air could be making you sick. Fight back!
13:24
Jeff Geerling
Переглядів 319 тис.
inventor aw - This Device is very helpful ,, you can make at home
6:47
Making An Indoor Air Quality Monitor With A DFRobot CO2 Sensor
7:49
Michael Klements
Переглядів 27 тис.
13 Brilliant IoT Projects!!! (2024 Edition)
10:25
ToP Projects Compilation
Переглядів 63 тис.
Sensors - which one to use
17:06
Electronoobs
Переглядів 1,3 млн
[실시간] 전철에서 찍힌 기생생물 감염 장면 | 기생수: 더 그레이
00:15
Netflix Korea 넷플릭스 코리아
Переглядів 37 млн