Thermal Imaging Camera DIY $110 VS Buy $530 || DIY or Buy
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- Опубліковано 24 лип 2024
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In this episode of DIY or Buy we will have a look at thermal imaging camera. At first I will show you why thermal imaging cameras can be very useful when it comes to working with electronics. Afterwards I will explain how such cameras work and what flaws they come with. At the end I will then build my own low budget DIY thermal imaging camera and compare it with the commercial one. Let's get started!
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Music:
2011 Lookalike by Bartlebeats
0:00 Why a thermal imaging camera is useful for electronics
1:56 Intro
2:43 How a thermal imaging camera functions
4:26 The emissivity coefficient problem
5:47 Testing the AMG8832 (64 pixel sensor)
6:57 Testing the MLX90640 (768 pixel sensor)
8:12 Making a DIY thermal imaging camera
9:51 Comparison & Verdict - Наука та технологія
Most people, Netflix and chill.
GreatScott, Hot glue and Screw.
Haha I love it ;-)
@@greatscottlabHi sir. Sir please hack an AR glasses to work on a HDMI input even if the whole setup becomes bulkey. Bigg fan. Love from India ❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
Don't forget us the viewer of this channel
@@greatscottlab U told wile vack u gonnamake arduino multimeter when u make it
Well, you do want them to stick around.
Once you have such a camera, you automatically start to find more applications for it. Like finding leaks in the insulation of your house in winter. Or finding where your cat is hiding in your bedroom.
Oooo! That gets me thinking..
Definitely ;-) There is so much you can do with it. But I wanted to keep it short in the video and just focus on electronics.
How have I never thought of that! IR cat detector will be the new main purpose of my IR camera.
@@Personal-rc7cy That one is actually easy to do with a sheet of paper and an thermometer gun. Let the paper warm up on the bed and start taking measurements. I found on mine it's fairly even around a square created by the 4 corner screws but outside those screws it drops off rapidly despite the heat pad on it reaching to the edge. Also handy when printing to spot plastic that got too wet, can really see the temp drop at the nozzle when it hits a moist spot.
sadly my pets are cold blooded - ill have to stick to the insulation
I have the FLIR TG167. It does a good job. I've used it to find thermal "leak" around the house, monitored wheel bearing temps on my travel trailer as well as using it for monitoring my electronic circuits.
I like your perseverence with getting a good solution with your diy projects! Not an easy task to beat manufacturers in having great products!
Personally a thermal camera + ZnSe lens has been invaluable to me in troubleshooting shorted boards. This made a thermal camera well worth it for me.
How does the ZnSe lens help in your situation?
@@Abdega The lens reduces focal length considerably which allows you to have a narrower field of view while maintaining focus. This allows you to pinpoint heat at the trace level and component level for components as small as 0603 or traces ~1.0mm
@@reallyiffy thank you!
do you use a ZnSe lens like from a CO2 laser or a planoconvex lens of some sort?
@@Abdega yes a Plano convex lens typically marketed for use with a CO2 lasert, I bought mine from Amazon.
I thought longer focal lengths mean reduced field of view. Did you build a mount that allows you to adjust focusing?
I was always curious how these worked. Very cool. Thank you for the high quality explanation!
The DIY videos are the best! And more appealing to a wide range of viewers 👌🏻
Ayyy, another DIY or BUY great! :))
I hope you like it :-)
I think you mean Great Scott
And another "buy" conclusion.
I suggest: Lead acid battery desulfator, DIY or BUY.
I can put it on my to do list
@@greatscottlab Thank you Sir
but in his content we can always learn a lot about different circuits and how they work. In my seen product like desulfator, it is all from china imported to philippines and I know it is easy to break and just waste to us. 😊I have confidence in great scott that it will enhance the function even more than the expensive and not durable product of others.
@@greatscottlab use an re-emf charger
@Против Глобал That's literally what some of these desulfators/chargers do, it's not like they perform some magic to bring batteries back to life, they just heat the battery.
If the surface is shiney according to FLIR, just put a piece of painters/masking tape on and you can then measure the objects temp.
I needed an aluminium board and had no idea where to get it, so glad that they offer that now
The Flir E4 can be "upgraded" to the 320x240 E8 with a firmware replacement. Huge value, and you can Google it easily.
You could calibrate the DIY camera for use at a set distance and use it stationary. That way you could set something down in front of it and depending on the size and how far away it was, you could adjust the parameters to measure the X, Y of where the hot pixels are and know very accurately where the component is. It just wouldn't be a handy handheld tool for quick observations.
You can always use a laser pointer to show where it's taking the readings or will that interfear with the reading, example laser points at the component imager reads temperate that way you don't need high resolution
As limited as the DIY option may be, I actually think I could use it for diagnosing hot spots on PCBs, though the drench it in alcohol method might work better.
Or my personal favorite of sticking my finger across the leads of a 300V capacitor to see if it's too hot
😂
@@NoorquackerIndare u still alive😂
Very cool video! My husband is the big fan of thermal imaging technology and has bought an infiray t2 to detect some thermal leak in the house, i will ask him to watch this video.
The DIY will always have advantages with his skill.
what do you even mean?
@@txm100 i mean that he is skilled enough to make diy stuff and make it better than commercial grade. Sry for my english
@@vidulabeywickrama7852 Nope he isn't better than FLIR or other commercial stuff. That takes month or years do develop and integrate.
@vidulabeywickrama7852 probably not because the modules are the limitations
Another great video from you sir Scott! :)
It’s uncanny how well your videos sync up with what I’m working on. I feel like just a few days ago I was thinking about this exact same problem.
Perfect!
The algorithm knows.
something you didn't think of: you can simply overlay a LCD without a backlight, over the thermal image, it may need another esp32, but might be worth trying, using another esp or controller would also mean you could lock it to the same framerate as the thermal camera, without needing one controller to do too much work
have you made yours or done this?
@@dhruvparmar007 no money for that
Me : thinking thermal camera a really complicated you can never diy them
Great scott : hold my beer
Well, the sensors make it possible ;-)
I'll hold a case of his beer if he keeps DIY-ing super useful tools!
I DIY them all the time
(granted, I do work in a thermal camera company lol)
Yes. Projects like this(the majority of the ones of G.S.) are not just fot "handy" people.
Very helpful video , I just joined a thermal camera company one month ago as calibration engineer 😀👍👍👍
And from the bottom we start from 80*80 sensor and at last we have 640 sensor of Ulis (a French company) very expensive 😂😂
Adding a simple regular camera and adding edge enhanced overlay would only be a few $$ more, and would provide an experience that feels visually more higher-res. Also emissivity can be easily programmed into the software. These would be fun additions but given the price per pixel is much higher DIY in this thermal sensor, BUY is a good conclusion for a goal of a practical device.
I like your DIY vs. BUY series.
Great video. So valuable for my learning.
Does Flir manufactur their own sensor? It seems a thermal sensor should be available that has performance closer to the Flir one.
They make their own sensors. FLIR was actually one of the first to make such thermal cameras.
I’ve been waiting for this vid for a longgg time since I saw it’s preview on the patreon
Hope you enjoyed it!
that diy version is fricking cool great job dude
Awesome work, dude! Thanks a lot! 😃
Even though it didn't work out, it's a fantastic starting point! I bet we're going to see a fully functional IR camera pretty soon! 😃
Anyway, stay safe and creative there! 🖖😊
Nicce that's what i was looking for :) Thanks for it as Always awesome awesome video 💞
I think that diy imager would have some practical use in automotive diagnostics. Pretty cool.
This is awesome video. You're super genius. Thank you for sharing
This is the reason i love Sunday's. GreatScott is gonna post something cool
You are welcome :-)
@@greatscottlab wink😉
Great video! I was looking at building a cheap thermal camera so this was extremely helpful.
Glad I could help!
I think DIYing makes sense most of the time because you learn electronics while building!
But not good for practical use
Thank you for listening! Epic project!
Thanks :-)
Great video man.
Really appreciate your work and content.👍👍
Thank you so much 👍
@@greatscottlab It really feels great, I am watching your videos for last 3 years. And now I am pursuing b.tech in electronics. I am going to enter in 2nd year pretty soon my 2nd semester exam start from tomorrow. I want to create amazing stuff and I am thinking about going into the b.m.s designing and I think it would be a great field for me cause I love different types of batteries.
I think you can change the emmissivity coeficcient, if i remember correctly. i used the MLX sensor for a school project and when i was writing a python driver for the rpi i stumbled over the setting. but i don't know if it is in the adafruit driver or the original Melexis cpp files.
Amazing as always. Thank you for explaining how to troubleshoot with it. I am going to try that (because my circuits rarely work first time).
It is obvious that the components you tested for your DIY version are not granular enough for the kind of work you mentioned.
In my mind, that just means you haven't found a better camera module yet with a DIY price tag. If you could bring the DIY version under $250, then it would still be a good DIY win assuming getting better resolution.
It seems as if finding a module with DMA transfer and hardware DSP to handle the correlational computations would probably require an embedded MCU or PIC, so the price would much higher.
You kinda missed out for this video because tearing down the expensive camera could have shown what model components they use.
GreatScott is the best at all time... learned a lots of things from you. thank you so much.
My pleasure!
I cannot understate the usefulness of thermal cameras in electronics design. At work, we have a design we've been making since 1985, and for some reason the output channels periodically just die on it. The why had never been figured out until we got a thermal camera recently. I was curious to see if there were any issues, and one of the components was rapidly cycling between room temp and nearly 250F when the output would go into the positive cycle of its waveform. On paper, the components used were perfect for the application, in reality we swapped a 110 ohm resistor to a 1k resistor and it fixed the thermal issue.
scott you always amaze me
whenever i get new project i always find something helpfull on your channel
this time i abolutelly got what i looked for
im working with cars and i try to diy a lot of things
like year ago i made conversion from distributor to coil on plug for my honda
now im trying to make tire surface temp monitor
and literally all i need is simple small temp camera that will just give me temp across tire
and its exactly what this camera u made is suited for
as for what u said in the end about diy camera not having emissity coeficient
i think its all down to code
i can think of linear table in which u only need to put 2 values of real temp messured and 2 from camera reading
to calculate it and correct it i guess it might be a lot for arduino but i guess if im about to only use about 8 pixels per tire because more isnt needed it could work, the refresh rate is a bit worrying but maybe camera with less pixels could give me better refresh rate i guess 12hz is like lowest i could go but perfectly it would want to be about 20 so i can monitor the data with precission there is alot happening when u race a car and having a lot of data to check after session is never a bad thing
Brow your all vidios r powerful thanx for sharing knowledge
I was literally just looking at some of these other day and now I'm trying to invent a problem to solve so I can order some from them 🤣
Your English has improved so much, bud. I'm so proud of you.
Your videos helped me a lot ✌️
Happy to help
Excellent video! I use my camera just to point out the problem area and pay no attention to the true temperature of the hot spot.
You are awesome man! Hope you do this forever
I will see what I can do.
I'm now curious about the extra cost of a higher resolution sensor and display. How much more resolution would you need to replicate FLIR, or make it usable for electronics diagnostics?
The FLIR Lepton module alone costs 200 €, so that certainly isn't an attractive alternative. For electronics, the best bang-per-buck are the Thermal Expert cameras.
You made a thermal camera. That's awesome
Yay, another greatscott video!
Hope you enjoyed it!
Love it ❤️
Setup a entire lab with poor man's gadgets.
Does the thermal camera show any effect if the distance is changed while measuring the temperature of an object?
Hi, yes in general the farther object is, the cooler it appears. Would say around 0,75°C per meter due to diffusion by air and dissolved water vapor.
Can you combine the low-resolution thermal image with a higher-resolution visible-light image?
That way, you have *some* idea of what you're looking at.
Bought a Flir One 1 year ago for my Android SmartPhone, it was only 199$ and is a Gen-III Thermal Imaging Sensor, it's very sensitive and has an extra 1080p camera built in as overlay so you can see details as well as the heat spots. Totally with 199$, but it does have a few drawbacks. Even though it auto-calibrates, calibrating can take some time. And it's prone to lock-ups and freezes, for example if you walk around with it from an cold area to a hot area, it can freeze up. Also since it plugs into the phones USB-C connector, it can fall right out of it.
They have fixed the notorious dying-battery issues (the earlier models usually lasted a few months, then the battery just flat out died), but for 199$ you get a cheap mid-range resolution sensor, and that ain't all bad. I use it to find heat leaks in my house, check for pipe-leaks in the houses piping, and fire risks in the chimney. I also use it as Great Scott does, to find overheating components.
It's also useful to detect thieves in the yard, something suspicious? Well they won't be able to hide from you - you can easily spot the hot body either of an animal (maybe your cat is missing?) or anything big and living in any dark areas.
Here is an example image I took of my 3090 card to see how hot it gets during idle process: i.imgur.com/WpuLjkK.jpg
You've got to change the battery in that S7. Had the same problem with it drawing ≈0.2A and when I replaced the battery it was all fine.
Omg! He is spiing me 🤣🤣 it was just yesterday that i was searching for a way to diy a thermal cam
Which one do you recommend for locating termites inside concrete cinder block walls?
Could this still be useful for PCB diagnosis if you placed a magnification lens over the sensor? The FOV would suck, but the magnification could hopefully make up for the low resolution.
First you should buy proper germanium/ZnSe lens
So I'm pretty sure I've seen a guide for such a project on Adafruit Learning System. I don't remember which sensor it used, but I'm pretty sure the dev board in use is the CLUE (micro bit shaped nRF52840 cortex m4 at 64mhz, with TFT and a bunch of sensors)
I loved writings and also project
Great try, thanks for sharing
Did you make best power supply to run DC motor they used in water pump
Still an interesting and educational project even if it’s better to buy the commercial tool. Thanks!
I want to make capacitor dropper circuit for automatic day night sensor using 12 v relay what value of capacitor should i use?
you are so much improved. Thanks fot your nice video
Thank you! 😃
Could the DIY thermal map be more useful overlayed on a normal image from a normal imaging sensor?
Really a great idea. A shame to have to work with so low rez. I'm wondering, since a brand new is 450€+, what precision could you get by spending let's say 250 on that kind of project ?
I couldn't get the video going on mine either. I be was wondering what the emiss setting did?
I couldn't figure it out. Any ideas?
Sir you did a great job.
Thank You Sir now I can make one.
Out of interest could you add some form of laser or a seperate camera to measure the emmisivity coefficient of the material to automatically apply that to the final image and get accurate temperatures?
Super video!! I like your channel!!
Thanks :-)
I love these videos
Would the refresh rate be any better with something else running it like a Pi 4 ?
Why not use a visible spectrum camera module and overlay the thermal map over it?
Thsnks for a reduction in the pain of doing your own ir camera
I got myself a cheap off-brand version. The resolution is about half way between your DIY and the FLIR; I've used it now and then for troubleshooting and/or augmenting my videos with stills - as it cannot record video. But then, the price was also half way between your options: about 250$ IIRC.
Get hold of the ESP32 camera module, remove the IR filter, revamp the colors to give IR representation.
Could you cheaply buy a bunch of low res sensors and use software to overlap them for better res and refresh rate?
Its amazing tutorial :D! , Thanks for the videoo
Glad you liked it!
Why not get one of those "seek thermal camera" which attaches to your smartphone
I have one of them, got it for ~350 on black friday. It's quite amazing tbh. The biggest weakness honestly is the iOS app, but i'm super happy with the purchase overall.
Fluke also has models. I've seen ios version in use for the latest model. It's pretty damn good, but there are some minor issues with it. Biggest one is that going to certain distance you'll get offset from phone camera and ir sensor. There's some calibration options, but it's quite obvious that this parallax issue will be there always. To be honest it's not a huge thing, but still bit distracting considering they're quite expensive. You can now get very good "standalone" models for virtually the same price.
Ive seen some chinese camera reviews here on yt where theyre pretty good for cheapish, like franlab's review of a $200 one
Yeh, I bought one a couple of years ago and it seems to be a good option for hobbyists at around £250.
It might be interesting to point out that the Seek Thermal refresh rate has to be slow due to US Government restrictions though.
The refresh rate on the FLIR demonstrated here seems to be much higher (maybe because its not manufactured in the US?)
@@AClarke2007 i wonder if it would be possible to mod that restriction out
Do u think it will work for high-power terminations?
I just bought an Hti301 from aliexpress. Cost was 600usd. 384*288 pixels. And with the app thermapp it is friggin' amazing!
10:00 Is it possible to use a transparent display so that you can see the heatmap overlapped with what you're looking at? Or use a camera and the temperature sensors with overlapping displays (for example the first display shows the live feed from the camera and the second display on top shows the heatmap). There are some interesting videos about these displays from Sean Hodgins and
Zack Freedman.
Wow just when I was looking for one
Two other buy options: you can get USB C and Lightning FLIR attachments for your phone, which cost way less, but then your phone is the screen, you can easily save and share images and video, and eat mor control. You can also get smartphones with built in thermal cameras, although they’re typically targeted towards construction/engineering folks and while they’re typically very rugged,, they often lack other features for regular phones in that price point
Video with Flir? You should be kidding. Flir still offer only 9 Hz sensors from the last century while 25-30 Hz sensor are available for many years
Hey Great Scott!
Nice video,
Recently I came across a problem, I purchased an adapter that had USB 3.0 female Port, Type C male connector, Micro USB 2.0 Male connector. It broke off easily right on the first day.
Waste of money, *I was thinking is it possible to make USB 3.0 female to male type C adapter at home without using microchips, just wires?*
Thanks Great Scott! This was fascinating! I wonder what IR LEDs or an IR laser would look like with your new or DIY camera?
Nothing spectacular actually. IR LEDs and lasers operate in "near-IR", that is almost visible light. In fact, old and cheap security cameras and most modern video cameras if you remove the infrared filter from the sensor can see it. What is so special about this camera is that it can see far-IR. An IR LED will look to it just like any other LED as long as it doesn't run hot.
Hello Scott it is far IR that is based on Temperatur other IR cam using near IR. Like secure cam..
Changing the screen or the screens library for a faster one would help and a better looking image can be had with bilinear filtering, I've even had quite good results with the amg8833 using this technique. I just need to pull my finger out and build one with the mlx90640 which I've had sitting around for 2 years! Great video though and I'd love to get a flir but can't justify the money for the real use I'd get.
I need to make an eFuse circuit for my farm irrigation system. Your video on the subject is the top rated video. I was wondering if you could do an updated video on the subject. Thanks
Updated? The video is only a couple months old. What do you think changed in that time?
Legend will always cite the source of data they used, that's why i subs this channel. fascinating
Is there a reason nobody seems to mount the thermal and visible sensors physically aligned with a hot/cold mirror so there's no need for all the fancy software image alignment?
It worked for 3ccd color cameras.
Nice work! Also, you could upgrade It with a CMOS camera to get real image and mix both in same frame!
Could you do video transmission from esp to the separate screen?
Some smartphones have a IR camera built in, there's even a module you can buy separately and plug into your smartphone.
Thanks for the great comparison! Now I'll definitely won't try to DIY it ;-)
Well that's a interesting idea. What about trying to convert a simple normal camera sensor in a termal one . Just a simple question
is the thermal camera chipset between DIY and BUY same or different?
Now that jlcpcb have aluminium boards... 3d printer heated bed diy or buy?
One option you didn't explore was the hacking that was done with the SEEK thermal imaging cameras. They are very affordable IR modules with a USB interface, but it's all proprietary. I think they managed to crack the older models but the newer models only produce a raw unprocessed image last time I looked into it.
For anyone wondering, it's possible to get a high refresh rate off this camera when using i2C you just need to set the clock speed on the ESP32 to 1MHz and the refresh rate to 32Hz on the camera.
Very good! Sería posible meter la imagen del sensor en unas gafas FPV?
Un saludo!
Biggest complaint would be the resolution. Is the heat range less on the home made version? Danke