love how he starts building a CO2 and particulate sensor instead of making an angled cover for the vent, so it can stay open all the time

Jeff, you can permanently fix this vent by mounting white sheet (like magnet one ) in front of it on 5-10 centimeters from wall. It will not block airflow and there is no difference from camera point of view. Otherwise, pretty nice video! And I think about it but with ESPHome as firmware.

Dude! This totally happened to us at our old house too, but not just in a basement office. We started closing all our doors a lot to keep the kids out of different rooms, and there was only one return in the house, and sure enough when we'd go to sleep at night we'd wake up with terrible headaches and grogginess because the CO2 levels climbed to 2000+. As soon as we put gates in the doorways during the day instead, it was easier for air to circulate enough before we went to sleep.

I live in Northern California and have felt similar sluggishness due to the fires and subsequent horrendous air quality. In a way, it's more frustrating than being sick because you don't feel really bad enough to rest but you don't feel good enough to accomplish anything. I'm going to try this project once I can breathe again.

Piping this into something like home assistant + automating the venting system sounds very cool to me. Might be fun to get that working.

Feeling thankful for my drafty 100-y-o house right now! Seriously though, fascinating.

I'm a noob with soldering but this actually looks accessible, I might give this a try!

Awesome stuff Jeff. I just started my crusade for good ventilation in my house. I felt exactly the same sluggishness you did in my home office, and there were some mornings I'd wake up so groggy that I felt like I hardly slept. I ended up using a SCD-30 sensor for CO2, temp, and humidity tracking in my bedroom for starters. After tracking with Grafana, I found that there were some nights we got above 5000ppm in our bedroom! We've been much more adamant about encouraging good ventilation in our house, and it sounds crazy but wow has it chamged how I have felt around the house. Anyway great video!

Dude, you're awesome. I appreciate how thorough you are with how you provide your material, and your advocating of open source. Keep up the great content.

Jeff is such a great motivation for me on my own UKposts journey, I am glad I was motivated by this man.

13:18 "people often ask me we productive" **shows a can of dr.pepper** "boom. Productive"

now that you can monitor the rooms co2 levels, you should put some plants in there to see if/or how much co2 they absorb

Now I want to build two of these to monitor the air quality in my kids' bedrooms. Though they get plenty of sleep time wise they seem to always be too tired at wake time and for a while after. Thanks for the tutorials and links.

Knowing your office was in the basement I was going to say the only thing your sensor was missing was radon. Glad you made this one. I was thinking about creating a CO2 sensor myself but I'm glad that one has been made that truly takes it to a new level.

love the time laps seeing time pass on the clock looks so cool

Pro tip: use some blu-tak (blue poster putty) to hold components in place while you solder. Often use this more often than helping hands or a PCB vise. Great video as usual, Jeff!

Just wanted to say thank you, you're one of the only few people I trust on YT/Reddit. Bless

Thank you for making this video. I've been researching how to make my own air quality sensor, this has helped a lot.

When I converted my SodaStream to use standard co2 tanks I bought a cheap ($150) co2 detector from Amazon in case I had a leak. I didn’t, but it blew my mind that the co2 level in my kitchen would spike to 1200-1500 ppm for a few seconds after filling a bottle.

Finally finished implementing your setup. Ansible is interesting! I need to learn more how that works!!! Thanks for helping me keep my air safe :)

This is really interesting. I love that you don't need a cloud service. Does anyone know of a ring doorbell type of project for the Raspberry Pi?

Just put a “ventilation” label on the vent. Now that you know how important fresh air is, you can consider the label your public service announcement.

ok so this is 100% making me want to start doing projects like this... probably going to order a kit next week

Thank you so much I really appreciate that you put the text version of your tutorials in the description.

This is super useful to me because I do experience very similar symptoms.

I think any efforts to bring air testing to all of us is important, regardless of what the catalyst was... Thanks for sharing this, hope you dig even deeper. Outside air is another important matter and I believe there should be more sensors for air quality in all areas and that data readily available on a digestible way.

Super cool! I built a monitor for my workshop using a pm2.5 sensor that then kicks on an airfilter if it gets too bad. Now I am thinking I might do an update with this awesome package

Well done, and very well presented. Thank you for posting. The effects of poor IAQ quality in our homes and buildings is an area that we are only starting to understand the long-term consequences of. Continuously breathing particulates and carcinogens appears to have long-term health effects. In most cases, monitoring these items is a good start, but reducing their sources (often various sources of combustion), improved ventilation, and filtration - are key to remedying them.

You can read the pm2.5 off the IKEA sensor with an esp too. I've got one with a co2 sensor hacked in. Works really well with esphome.

This is perfect timing. I’ve been wondering about this recently.

This channel is making me want to make my next home a fully smarthome

thanks for your reveiw and showcasing such a great product. Just ordered 3 of um

oh man, you're so good at finding things on my todo list.

I kid you not, I was just starting out with Home Assistant and looking for what I could with indoor air quality. This is awesome, ty :D

Jeff, I would suggest making a baffle box for the vent - so it doesn't reduce flow at all but makes it super silent. Make it the same color as the wall and it would just blend in.

This video gives me the idea to use this on our indoor ventilation. I could set a sensor in each tube in the centralised unit and somehow integrate it into Home Assistant, maybe... one day..

Here in EU legislation in last years introduced the mandatory requirements for new building about air quality. There ara some heat recovery ventilation systems that you could interface directly using arduino/raspi and do custom control ;)

great project, Jeff.... though one quick fix for your basement would be to make a small picture frame with standoffs that can attached (screw/magnet) to the face of the vent. This way, the vent can stay open for ventilation all the time & you can have a place to put a piece of art or your channel. ;)

Great video Jeff! Thanks for sharing!

I build something similar about 2 years ago when all the bathrooms on my building had to be renovated... Designed a board for an esp-01, a PMS3003 and a dht12. Had 2 esp sendsing observations via MQTT and a a RPi 3B+ hosting the MQTT, InfluxDB and Grafana servers as containers. One of the boards died about a month ago, but the 2nd one keeps going.

I bought a 3 of the Senseair S8 CO2 Sensors. I'm waiting for them to come in. They was suppose to be for another project. But I'm glade I saw this project. Now I have another use for the other 2 Thank you.

Very nice build ❤ Parts hunting time for me, starts now👍🏻

Superb details Jeff & great video!

You should look into getting a VOC sensor as well! Love the project

This is one of the best youtube videos I’ve seen. It makes me want to attempt a similar build. I’m not sure I have the background to pull it off. I’m interested in creating a commercially viable monitoring system for IAQ so that improvements being made can be tracked and monitored. I think I’d have a lot of learning to do to be able to pull a build like this off. Perhaps I need to partner with someone who already has these skill sets. I’d also like to include circuit level energy usage monitoring. You’ve certainly got me thinking. Thanks

Sound so great... but also so complicated.

It seems to be the realizable option to those cheap scrap they sell online. Thanks a lot.

Great video, it's exactly what I was looking for. I was put off by the price of off the shelf offerings, specially since many want to use their own cloud service(and who knows how long they will be around). I just want to push the data to homeassistant. Still not the cheapest devices around but hey, I can get full control over the software.

I made a Arduino PWM controlled ventilation ( there's full of tutorials) and this seems a perfect new addition to include in it. So I can ventilate the room because temps and air quality.

For anyone who hasnt done projects like this: I built a similar air quality monitor a month ago(own design, I didnt know about AirGradient unfortunately) , also getting parts from banggood and aliexpress. The only tools I needed were a cheapo £10 soldering iron (you can order it together with the components if you dont have one) and a pair of sharp scissors. If you wanna give it a go, its a fun project and might even help your headaches and afternoon slumps ^^

Seeing how long it takes for the solder to melt (around 5:20), I'd recommend a little more temperature. (The tip size does generally look okay, that's the other thing when melting solder takes too long.)

Nice, this looks like a good winter project with my son. -Fellow STL AMDG educated person. Blue, not red.

DAMN! I was searching for air quality monitoring just YESTERDAY! Awesome video, just got another DIY project on my desk :P

One option might be to mount a cover of some form (maybe even some art) an inch or two in front of the vent with standoffs. That would hide it while allowing a decent amount of air through.

The best windows setup !. Well done.. Next, next, next, finish

Oh my goodness this is so cool!! I may do this!!

I suggest a 3d print of a vent that points upward/downward and hides your vent fins but still allows you to get fresh air in the room

Loving the DIY gadget videos man!

Couldn't come at a better time.. I want one in each kids room to monitor air quality specially with A/C on and everywhere closed

Mate. As an avid viewer of your videos I’m telling you please don’t worry about covering the vent for my benefit. Stay healthy and keep that air flowing.

awesome project, air quality is definitely important, i kept getting these micro faints at my new workspace, feels like your fainting but only for a split second, i couldn't figure out why, i tough it was diet or anemia or something like that until i stared open the windows for a few hours each day and the problem went away. I will try to build this project so that i can monitor the air quality in here.

Hello Jeff! Very nice video, very interesting! I am myself putting air quality sensors in my lab, so this is extremely on point for me :) One thing i'd like to mention : now i am putting leads on my sensors, and have them in open air to provide better readings. When in a case, the heat tends to accumulate, and many sensors are affected by heat. I try to leave some space between them (although most sensors don't heat that much, it is mostly the MCU). I'd like to mention also, as you mentioned "the easyest way", i find it to be esphome trough home assistant. With espHome, i assemble my node (i mean in the physical sense, plugging sensors, etc), plug it in USB, then open the esphome tab on home assistant's interface, create a node, paste the yaml config specified on esphome documentation, then hit upload. It will thus flash the esp, and next time, you can flash it over the air if you change something. I don't have to look for libraries or whatever... (i did that at some point, but it can be annoying with version changes). Anyways, once done, your sensor sends data to home assistant on a regular basis (can be changed), and HA automatically makes graphes and all. But just to go a bit further, you connect your home assistant to influxdb, then graphana, and do the dashboards as you did. The easy route is to use the plugins directly in home assistant (HA); although i chose to have influxdb not running on my raspi4 that runs HA, because i have beefier linux server with dockers for such tasks; and i plan to keep the data indefinitely, poll the sensors often, etc. Don't want to add a unnecessary burden to th pi SD card. I take good note of your sensors, i knew some, didn't know others. My plan is to have many air quality sensors running, and try to measure the deviation between all those sensors. Would be better if i had a lab grade one to calibrate my measurements, but i don't :) I am also willing to see if multiple cheap sensors in parallel can be used to significantly increase accuracy. In the begining with simple mathematical solutions, then later with AI (it is my field, so i want to use it there, it is not just for buzzwords :) ). As for sensors, there is also the BME680, not great for temperature (BME280 is muuch closer to my reference probe for that), but give air quality index estimations (following the IAQ scale), as well as equivalent CO2. as for particulate sensors, i have many of them, and only a few are worth buying. The one you used is one of them : well supported in various project, documented, and caracterized. Many particulate sensors don't give life expectancy, calibration procedures, etc. I am, as you are interested also by the geiger counter, and would like to also turn it into a physical random number generator :) Anyways, i didn't know about the CO2 stuff, i'll look into it, it may explain why i sometimes also have a hard time focusing in my lab.

Awesome DIY project! Nice job :)

Using a breadboard to solder in headers is one of those brilliant life hacks that seems so obvious that I feel like an idiot for not having done it all along.

I'm Deaf and trying to live nomadically. One of my fear was that there are simply no budget friendly option for a Deaf alert for CO2. Basically skipped the idea of having an indoor kitchen of some kind. I've been wanting to learn Arduino and basic electronic since forever just to make this one thing and voila! your vid showed up!. It's basically exactly what I'm wanting to make except no wifi and I'll connect a test button from my vibrating bed alarm clock to be closed by the pi whenever CO2 and the like gets too dangerous. Thank you!

Man this is great!!! Hope to see the radon gas + Geiger counter soon!!!! Fascinated by sensors, and I assume many others are too

Hi Jeff I discovered your channel after becoming interested in the things you can do with a raspberry pi! I love your channel you’re the best !

That is pretty cool project indeed 👏👏👏

Jeff, another awesome video! Looking forward to building this. Definitely subscribed so I can see the Radon monitor. I use the same model you displayed, but would love to build my own with tracking.

Thank you for explanation, how to make it as a final product

Two things: Make something to stand off from the vent and cover it while still letting you have airflow! You could put art or something there and still get the ventilation needed to be healthy. If you end up hooking it up to some home automation stuff, you might be able to reach out to Linus Tech Tips and help Linus with his own home automation set up.

"hehe. Nice" - I LOL'd at the peel

Shipping take a while in Australia too. One took 4 months WT. Blue tec is your friend to hold parts on boards.

Very cool project! thx

Great video, I made a DIY air quality monitor based on ESP32 that can be integrated in Home Assistant

Can’t thank you enough!! And lol that peel 🤣🤣🤣

I wondered what that white thing was on your wall for ages, now I know!

I neeeeed one of these!

Jeff, thanks for yet another amazing video. At first I thought you'd jumped the shark, (and were going to start selling those HEPA air filters you then later ?teasingly? mentioned in the video :) ) with that click baity title. As always you never disappoint and gave us yet another high quality fully documented maker video. I should have never doubted you. Keep up the awesome work.

Safety tip when snipping leads after my funtimes a few weeks ago. Wear safety glasses. Yes it seems stupid. Yes I've thought the same having worked on electronics for the last two decades and yes it is a pain in the arse but... I was snipping some header pins flush and one of them managed to get into my eye and behind my lower eyelid. I ended up in a&e as despite my best efforts trying to get the metal out of my eye with tweezers, it did not go well. And yes... it hurt, it hurt a lot.

Great video. Another sensor is the IKEA PM2.5 VINDRIKTNING and it is even a cheaper sensor and can be modified with an esp8266 to connect to WiFi

A hubitat driver and app would be great so you could automate stuff such as starting a smart fan, alarms, etc.

👍 Thank you for this video.

One thing that airgradient PCB could improve is to place that temp/hum sensor at the bottom of the airflow as the heat from the other components might throw it off a bit. Most if not all commercial sensors are constructed in that way.

Waw, quite an interesting video. Btw, for the next version... adding a radon sensor, Geiger etc... I would recommend to add a gamma ray sensor too. They're not that expensive and show amazing results.

You need to have a formaldehyde test as well. I went through this after buying new furniture that brought our house air to toxic levels. Also a VOC test would be a good idea so you can see how bad house hold cleaner are poisoning the air.

WES51 gang represent! I've had mine for many years and still love it, even after heavy use. I got one early enough that I have the nicer stand with the ceramic collar, rather than the cheaper/clunkier/noisier metal one they changed to later. Just finally replaced the very sad-looking sponge on it, which I should have done a long time ago!

Excellent video!

Nice, I like the case. I made a little air quality project with a Sparkfun micromod carrier board running an ESP32 pulling data from a Sensirion SCD30 and Bosch BME680. Data is sent with MQTT to a Raspberry Pi running Node-Red and then to Grafana. I'm sure there is a better way but I don't know JSON. Sensor data should be kept secure or else you will broadcast to the world if you are home, what room you are in, just from CO2 levels alone. I didn't think it was going to be a big deal until I looked at a week worth of time series plots.

You could change the temperature sensor to one that is outside the case to get more accurate readings.

Jeff, I'm so relieved to see, that someone is as clumsy as I when it comes to soldering. 😂😂

Awesome show brother ✨🤓🤙🏽✨

Thanks!

Hi Jeff, I suggest that you use NodeRed built in on the raspberry pi. Nodered connects to graphana also and can be automated in the future use like open or closing vents

Thanks.. Ordered my kit from AirGradient - Wish there was a cheap Radon component to build/tie into it the package

I used the senseair in an internship project :)

For those really thin wires (and the thick ones) get a thermal stripper, I'll never go back to the bladed type. Migt impinge on the air quality though !

I recommend to add tVOC sensor to your setup. I find it the most important part of my air quality monitor. Even when CO2 is fine tVOC can go oven 3 mg/m3 in my apartment and I feel that it affects my productivity.

Nice video Howard!

Those Geiger counter looks beautiful. :)