For years I used 74HCT86 EXOR gates to multiply the number of digital channels on my 2 channel scope. As long as I could recognize the signal on the scopes display, it's inverted or non inverted image was not a problem.
Excellent video, valuable informations! Thank you for this! I would have looove a video to show in real time the difference between each one (cheap USB, good USB, Oscilloscope) in real situation !
Pretty amazed at how few viewers take the half a second required to click on the 'Like' button. Some of Dave's vids have 80 or 90 thousand views but a miserable few hundred 'likes. I'd be a tad pissed off if it were me ! ;-)'
Most cheap USB LAs may be a toy, but they're great for non- or semi-professional work. I've been using the 20$ 16-channel Saleae clones for reverse engineering tons of great junkyard stuff, and they've served that purpose really well. And I'm not even going to mention all the Arduino tinkering and the recent upsurge in hobbyist project platforms. Really shows that this video is a few years old already – perhaps EEVblog will come around to revisiting that topic in that new light.
I like your channel but seriously – why don't you stop insisting on having really expensive equipment. Many of us are hobbyists playing with Arduino type micros. We want to know what cheap stuff works for our purposes. It's fine to say "this is the best, or this is what you want ideally" but what about "you can get by with this"… We buy the cheap stuff from China on ebay and if it doesn't work – oh well, order another one 😉 Budgets are like $50 to $100 at best. Hell, most of the stuff I order is under $10 lol.
One thing that Dave doesn't mention here is that a compression sampling doesn't just record the state change data. It has to store somekind of a timestamp of when that state change occur. Depending on the formating and depth of this timestamp, this will also define compression sampling as an advantage or a disadvantage.
You skipped an important part of what many hobbyists are using logic analyzers for. And that is for revers engineering stuff by sniffing the serial commands between different IC's. And for this purpose a cheap USB logic analyzer is usually more than god enough.
This is more of a rant against logic analyzer use. Perhaps a good thing to discourage those prone to needlessly getting more toys, but more of a user tutorial would be nice.
lol, there's a faulty fan in your video, I thought my pc has some dying fan
Smart
For years I used 74HCT86 EXOR gates to multiply the number of digital channels on my 2 channel scope.
As long as I could recognize the signal on the scopes display, it's inverted or non inverted image was not a problem.
Great video. Is it possible to decode a rf signal with a logic analyzer, I mean to know 0 and 1 from the rf signal?
12 years later even cheapos have 1Gig compressed memory 😉
Thank you! I studied mechanical engineering and now I'm working in controls design for some reason, and I am in way over my head.
Maybe it's a good idea to make Logic Analyzer video again, after 10 years 🙂
Some things have changed meanwhile
Australian crickets chirp much faster than Canadian crickets
I just acquired a Sony/Tektronix 338, which appears to date from 1984. I guess that works a whole lot differently to the more modern USB ones.
I expected Dave to show the analyser he hold in his hands actually measuring something (showing the software etc)..
Excellent video, valuable informations! Thank you for this!
I would have looove a video to show in real time the difference between each one (cheap USB, good USB, Oscilloscope) in real situation !
i think u have a cricket in your room in the last part of your video there Dave.
Pretty amazed at how few viewers take the half a second required to click on the 'Like' button. Some of Dave's vids have 80 or 90 thousand views but a miserable few hundred 'likes.
I'd be a tad pissed off if it were me ! ;-)'
Excellent summary!
Thanks, Dave!
Most cheap USB LAs may be a toy, but they're great for non- or semi-professional work. I've been using the 20$ 16-channel Saleae clones for reverse engineering tons of great junkyard stuff, and they've served that purpose really well. And I'm not even going to mention all the Arduino tinkering and the recent upsurge in hobbyist project platforms. Really shows that this video is a few years old already – perhaps EEVblog will come around to revisiting that topic in that new light.
I like your channel but seriously – why don't you stop insisting on having really expensive equipment. Many of us are hobbyists playing with Arduino type micros. We want to know what cheap stuff works for our purposes. It's fine to say "this is the best, or this is what you want ideally" but what about "you can get by with this"… We buy the cheap stuff from China on ebay and if it doesn't work – oh well, order another one 😉 Budgets are like $50 to $100 at best. Hell, most of the stuff I order is under $10 lol.
One thing that Dave doesn't mention here is that a compression sampling doesn't just record the state change data. It has to store somekind of a timestamp of when that state change occur. Depending on the formating and depth of this timestamp, this will also define compression sampling as an advantage or a disadvantage.
I'm just beginning to understand electronics and your tutorials have been absolutely amazing! Thanks Dave!
You skipped an important part of what many hobbyists are using logic analyzers for. And that is for revers engineering stuff by sniffing the serial commands between different IC's. And for this purpose a cheap USB logic analyzer is usually more than god enough.
Brilliant video, thanks Dave
This is more of a rant against logic analyzer use. Perhaps a good thing to discourage those prone to needlessly getting more toys, but more of a user tutorial would be nice.