Just putting this out there; When Dave said on his video that you had made a video about this kit I came here instantly. I much prefer your presentation and teaching style!
Great video. I really enjoyed the portion where you were probing the ground plane of the PCB to show current density gradients. I've never witnessed a practical test that shows what these gradients actually look like. Excellent!
You hooking up the audio amp so we could hear the current! Then you hooking up a white LED! Then long term camera exposure! Brilliant! Brilliant! Very cool idea. They should pay you to incorporate your ideas into the next version of the probe.
I wonder how effective it would be to put an optical flow module or laser tracker module from a computer mouse on the end of the probe. Then you could write a small bit of code to build an intensity image of the current density, like having a handheld scanner.
Awesome, thanks. Might not have to tear mine down now. Yes, mines in the post, so should have it soon. Compression glitch at 6:30 - camera or video editor?
my second thought was to set up a camera to track the led position and relative brightness, then process it to the exact spot where it should be logged. many times per second, and average it out over an image of the board
Awesome. Very cool "display" of the current density with the audio and also the visual. Cool ideas. I wish I knew you IRL, so we could work on awesome product/business ideas together.
been to your website, you do fantastic projects. you are great example how immature we all are about the whole 'education' process. greets from green island
I was thinking about using a CNC/plotter affair to "scan" the PCB and get a 2D visualisation just before you said it :P Great minds and all that! How bout using an RGB LED and making a false colour image, again with the long exposure? Could be interesting!
How about converting the output to pitch instead of volume? Then it would sound like a metal detector. Have you tried seeing how the current density changes when ground wires are tacked on like some mfrs do to fix problems with coupling, etc. You could see instantly if that kind of bodge does any good.
This video was an unexpected gem. Is the LED panel available at all Mike? It's funny the first idea that came to mind when you first mentioned ways to try and visualise the current density. Very cool when you basically say exactly what I was thinking :D peace mate
Superb - but what about the probe in practical everyday working with electronics? is it good? trustable? stable? would you use it as part of your normal debugging/testing or is it more of a posh toy?
Is that a 700 or 800 degree tip in the metcal you use for desoldering those shields? I have a 5000 series metcal at work, and they do indeed live upto the hype that you hear about them.
Nice, thank you. I got deal on a toneohm 950 (it is a audio short locating instrument), but it has no leads. the leads cost over 7 Benjamins. I decided to make them my self mainly because I got no Benjamins to spare.. 1 of the 3 leads is a non contact magnetic probe. would you be kind and give me some idea on how to make it. Apparently the current probe can be used either with the board powered on and or off. But when board is power off, the instrument proves a drive source voltage which need to be connected to the board for the current. Drive source voltage is from 23 mv to 500 mv DC. any info would be appreciated.
Very cool. Very clever applications to illustrate the function. I'll have to wait until the Chinese start knocking them off and get the price down before I can add it to my toy box.
Also, using audio to indicate intensity is a great demonstration. Bravo!!!
Just putting this out there;
When Dave said on his video that you had made a video about this kit I came here instantly.
I much prefer your presentation and teaching style!
Great video. I really enjoyed the portion where you were probing the ground plane of the PCB to show current density gradients. I've never witnessed a practical test that shows what these gradients actually look like. Excellent!
Very smart ways of usage you showed. Thank you for your great videos.
It's been said already, but the LED long exposure idea was genius. You're a creative thinker for sure!
You hooking up the audio amp so we could hear the current! Then you hooking up a white LED! Then long term camera exposure! Brilliant! Brilliant! Very cool idea. They should pay you to incorporate your ideas into the next version of the probe.
Yes - pitch would be better but volume was just quicker & easier for this demo - just plugged the output into an amp!
Layout cockup - didn't notice that DIP and SO packages had different pin counts - luckily fixable by skewed placement!
I wonder how effective it would be to put an optical flow module or laser tracker module from a computer mouse on the end of the probe. Then you could write a small bit of code to build an intensity image of the current density, like having a handheld scanner.
Brilliant idea of using long exposure and current flux driven led!
Awesome, thanks. Might not have to tear mine down now. Yes, mines in the post, so should have it soon. Compression glitch at 6:30 - camera or video editor?
TH-cam brokenness - original MP4 looks OK
my second thought was to set up a camera to track the led position and relative brightness, then process it to the exact spot where it should be logged. many times per second, and average it out over an image of the board
Holy crap, that's brilliant! Seriously, that stuff with the LED is great! Thanks for the video.
An excellent video, and a genius ending. I can't imagine what I would use it for or how I would afford it, but I want one of those now!
Awesome. Very cool "display" of the current density with the audio and also the visual. Cool ideas. I wish I knew you IRL, so we could work on awesome product/business ideas together.
been to your website, you do fantastic projects. you are great example how immature we all are about the whole 'education' process. greets from green island
That is a seriously cool bit of kit, the audio feedback system you hooked up should come as a standard feature!
Not used it much in anger but main use I think will be finding shorts on PCBs
Encapsulated in resin, usually epoxy.
The idea with the LED is awesome :)
The last part of the video just blew my mind !
Even more insane to know that. Why? Because the knowledge you have, it sounds like you at least had a Masters in it. Amazing.
It's cool seeing you and Dave Jones splitting up the workload, intentional or not.
I was thinking about using a CNC/plotter affair to "scan" the PCB and get a 2D visualisation just before you said it :P
Great minds and all that!
How bout using an RGB LED and making a false colour image, again with the long exposure? Could be interesting!
How about converting the output to pitch instead of volume? Then it would sound like a metal detector.
Have you tried seeing how the current density changes when ground wires are tacked on like some mfrs do to fix problems with coupling, etc. You could see instantly if that kind of bodge does any good.
This video was an unexpected gem. Is the LED panel available at all Mike?
It's funny the first idea that came to mind when you first mentioned ways to try and visualise the current density. Very cool when you basically say exactly what I was thinking :D
peace mate
I am fairly certain my physics professor worked as a consultant in designing that probe.
Superb - but what about the probe in practical everyday working with electronics? is it good? trustable? stable? would you use it as part of your normal debugging/testing or is it more of a posh toy?
Is that a 700 or 800 degree tip in the metcal you use for desoldering those shields? I have a 5000 series metcal at work, and they do indeed live upto the hype that you hear about them.
Hi Mike:
Old vid, but thought it would be interesting to combine Aim-TTI I-Prober data with IR image.
Cheers, Mark
Yes. A lifetime of taking stuff apart & making things.
Perfect :) just got a coffee, now to sit down and watch a teardown :)
Wow, I've never seen that technique with teh led and long exposure photos, great to see that :o)
For that PCB, yes but that was just a proof of concept.
Nice, thank you. I got deal on a toneohm 950 (it is a audio short locating instrument), but it has no leads. the leads cost over 7 Benjamins. I decided to make them my self mainly because I got no Benjamins to spare.. 1 of the 3 leads is a non contact magnetic probe. would you be kind and give me some idea on how to make it. Apparently the current probe can be used either with the board powered on and or off. But when board is power off, the instrument proves a drive source voltage which need to be connected to the board for the current. Drive source voltage is from 23 mv to 500 mv DC. any info would be appreciated.
Weird, never had that myself, was always the cam or editor.
Wow been watching eevblog a while. Never knew about you great to hear a UK voice in electronics! Thats from a essex lad!
Great teardown, loved this one!
One of the chips on the LED controller boards is mounted at an angle. What's up with that?
Yes
If a GMR sensor could be used, it would create a substantial cost improvement- they can be created thousands at a time on a wafer.
I'm interested in that LED display :P
what do you work on? you obviously have massive experience, very cool
No - started one & dropped out - mostly self-taught.
Hey Mike -- just checked the price on Newark here in Canada, it's listed at $1100CAD! Did you pay anywhere near that much?
Great friggin demo!! Wow I have no idea how I missed this video. You are a fuckin G dude
What's the plug labelled "suck" at 9 minutes? Fume extractor?
thanks Mike
love the jacket
You can't see this kind of things in other channels.
Well there goes one of his teardown Tuesdays ;)
And often a great way to learn. :)
what does the term "potted" mean? I hear it all the time, but am unfamiliar with the definition.
Did you build the LED matrix board?
Ah! I was thinking it might've been a complete pick and place failure.
Where did you get that crazy reverse facing computer case?
You can buy one from alienware, a bargain at only $3000! ;)
Very cool. Very clever applications to illustrate the function.
I'll have to wait until the Chinese start knocking them off and get the price down before I can add it to my toy box.
Amazing
Sweet! Really interesting, thx
how much is such probe?
I totally want your lab
Thanks!
I love how you fearlessly rip-apart expensive equipment :) I'm not brave enough to work on anything that isn't already broken lol
So, do you associate with a hackerspace of some kind?
It's a €600 probe...
6:27 oooohh pretty!
@mikeselectricstuff