[001] Sigrok and Logic Analyzers

Introduction and experiments with low-cost logic analysers and the sigrok software suite.
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[@chris0x00]

Just when I thought this couldn't get any better out comes the simulated circuit. This must have taken a great deal of effort to put together and present so well. Thank you Joel!

[@venim1103]

This is not just an awesome tutorial, but a really nice encouragement for getting into open-source development projects!

[@xRawlins]

Finally! A great video that walks you through logic analyzers for us beginners. This is exactly what I was hoping to find. Cheers!

[@Moonbase59]

One of the best introductory videos about signal analysis I’ve come across. THANK YOU! It’s an eye-opener and shows what can be done with little effort. Standing on the shoulders of giants, of course, that already put lots of efforts into it. This video shows how to open ways, develop your knowledge and build the bridges between the big measuring instruments companies, the knowledge thieves and el-cheapo clone builders and a lively Open Source community making it all accessible and distribute knowledge by working together. Love it. Thanks to all!

[@MrPerrey]

Very very good resume of the available low cost logic analyzer options!! I rely appreciate how you explained the weak probing that these devices provide when its coming to higher pulse rates, with the necessary higher sample rates, specially under a low number of channels on serial communication. When you look on the professional analyzers, probing is one of the most important, most complicated and even most expensive part on every high performance measurement system. But also when You are coming from the professional side you must also recognize that almost much more then 90% of the upcoming analyzing cases could be easily handled by these cheap devices. In a short, I don`t remember one only case where I was coming to the end by some equipment limitations, the major task was everything to get a "better view" whats where going on in the circuit or communication line. I also remember logic analyzers (more from the 90th) who where much less powerful, much less self explaining and very difficult to set up. They where much less flexible and very time consuming specially when it comes to the point where You have been forced to count out your capture count by count, bit by bit. So, after your nice explainings I will give it a $30 try with a Logic16, to see how it works and how the probing performance could be easily improved by a cheap and easy DIY solution. Thanks for Your lesson ;-)

[@danielsalloum3006]

Epic video. I'll probably need to re-watch in the future to recall everything contained in here.

[@hateeternalmaver]

Do appreciate the wiseness to tape everything down... I had a setup where I had to move everything to get readings, so I taped everything down to a paddle for table-tennis.^^

[@cooper6717]

Really great video, thank you for this. I will be re watching in a few weeks when my logic analyzer arrives.

[@MaxAirGo]

Amazing video. So such information I have to re-watch many times. Thank you sir!

[@kmetze]

I'm shocked to see this video only got 500 views! This is quality content! *Thumbs up*

[@jamisusijarvi646]

Better situation now :)

[@larschristoffersen1847]

I believe it is probably the length of the video that scares off Generation Z. Smaller clips would get bigger numbers - but who really cares? The quality is very very good as you say and the content is really interesting stuff. I am very thankful

[@hernancoronel]

87236 as of December 27 2019! Much better!

[@Ferreira019760]

When I grow up I want to be just like this guy.

[@mrbobjrsrv]

@@larschristoffersen1847 not a Gen Z, but yeah, the length of the video + me just wanting to get a logic analyzer working + finding a shorter video that does that. Even if this guy has the best content out there, I'd rather get the job done quicker. But you're right, who cares? As long as you guys are enjoying, that's all that matters! :)

[@jansirkia3809]

Sir! I think you're some kind of a Dr. Dolittle for digital circuitry! Supremely entertaining video. Thanks!

[@ValeryDjondo]

Thank you for this video: this will probably open the gate to knowledge to many, including me.

[@nickhuynh6321]

I'm amazed that so many folks doing this for free...

[@proxxima038]

Very informative! Thank you for making this video!

[@michaelhawthorne8696]

What a good video. Really professional production and very clear narration, you clearly know what you're doing. Just bought the Hobby Components analyzer and clips. Looking forward to playing with it and the GUI Sigrok software. I Liked and subscribed... thank you

[@jix177]

Brilliantly presented and helpful video! Thanks for sharing.

[@lmaoroflcopter]

Blown away by the detail in this video. It's fantastic. Just getting to grips with logic analysers and have found the info included in this video really helpful. Thank you. Do you have any recommendations for an open software/open hardware oscilloscope?

[@adev8565]

I suggest you check out the ScopeFun project - the hardware isn't cheap but it is completely open, just like the software that runs it.

[@DD4DA]

Many thanks for the very detailed information about the internals of the popular analysers who are available on the market. The USB logic analyzer like saleae logic it's a cheap little device which can be helpful. It can not of course measure with a grown TEK, HP or Rohde & Schwarz. It would also be unfair to do so. An oscilloscopes, however, are always a must, if one wants to use such simple devices, since the signal shape can not be judged. A mixed signal oscilloscopes can do this, however, cheaper devices do not have a decoder function and have to be paid extra, and their operation is unfortunately anything but comfortable. A PC program has significantly more comfort and more display area. Unfortunately, the USB devices lack the possibility of real-time display. The price for the USB devices justifies the deficiencies and correctly applied, it can simplify the life of a hobby-hobbyist. Profi's who earn with the development money will surely reach to TEK, HP or other very expensive devices. It was fun to watching your post. Not every moderator considered that interested viewers speak another mother tongue and the english spoken and listen words does not belong to the daily practice. My special thanks for the clear pronunciation which made it very easy for me to follow you.

[@DumitruUrsu]

I thought it was going to be a long, boring video. Boy, was I wrong! Thanks for the quality content :) By the way, could we get away with using a logic analyser at higher frequencies if the probes would be of better quality? Like, shield wires or something? I was thinking of building a logic analyser based on OBLS, but with a ExpressCard/54 interface (like those found on older Thinkpads), but after watching your video, I'm not sure it's worth it.

[@OpenTechLab]

LAs can work at GHz frequencies e.g. the KeySight model. But it becomes hard or impossible to just probe some random signals on a board. At these high frequencies impedance matching becomes a major factor. Unless the board has special support for a logic output, you need a high-impedance probe like in an oscilloscope. Having dozens of probes like these gets expensive, and ugly. But at really high speed, serial buses are increasingly common, so you're better of with a fast oscilloscope than a fast LA.

[@pepe6666]

hell yeah awesome. this video is totally underrated

[@tamyboy1]

high quality stuff dude! thanks

[@victorpreuss]

Fantastic video! Thank you very much

[@sureshlingabathina]

Excellent, excellent voice and good info

[@adithyayuri]

thanks for the video .......... great content

[@vandersonpc]

Great video! 👏🏻👏🏻

[@nicoladellino8124]

Nice video

[@jurajsvarc911]

Hi. Thank you for SIGROK, it's a great tool. I would like to ask if unlimited recording of the signal is possible. I am currently limited by the 1TB sample limit. At a resolution of 24MHz, that's approximately 3 minutes of recording. Isn't it possible to choose an unlimited number of samples in some way? At least an hour of recording would be great - it would be ideal to be able to choose an unlimited number of samples...

[@avejst]

yep it is 👍

[@Grazfather]

Now that it's 2020, do you have a recommendation for a good/cheap logic analyzer?

[@voxel9470]

Putting this here for a 2021 answer

[@Grazfather]

@@voxel9470 2022 answer

[@hullinstruments]

​@@Grazfather 2023 answer

[@Grazfather]

@@hullinstruments 2024 ansewr

[@RichardBronosky]

5:40 Why does it say "Saleae Logic - PulseView"? Is there some kind of historical relationship between the commercial product and the OpenSource product?

[@adev8565]

No, the "Saleae Logic" part is just the name of the device that you currently use. As those FX2 board manufacturers unfortunately use the VID:PID pair registered to Saleae, there's no way to tell whether it's the real thing or not, so it shows up as "Saleae Logic".

[@fightocondria]

How do you feel about DSLogic 400M 16 channel? It looks like it has 256M of memory. (On ALI)

[@OpenTechLab]

I'm just finishing a video about the DSLogic Plus. It should be released later this week.

[@wi_zeus6798]

Is your website currently down?

[@OpenTechLab]

Thanks for the heads up. Should be fixed now

[@tablatronix]

wow my24mhz 8ch is much nicer internally. says v2.0 totally different footprints layout, uses qfn

[@hellterminator]

The funny thing is that there really is no reason to use the original Saleae software with the clones because Sigrok is just so much more powerful with all of its protocol decoding. Thank you very much for your contribution to this amazing project!

[@cdrive5757]

I must say that this is the venerable mother load of USB logic analyzer videos. Moreover, it's a comprehensive and thorough treatise of available analyzers, limitations and compatible software. You certainly sold me on Sigrok open source software. Thank you for producing such a flawless video!

[@ingmarm8858]

any chance you could do voice overs for all Dave's future videos? it would mean we could all sell our pitch converters :-) Nice videos..

[@NumosG]

Amazing video. It's great to have all those background information and your style of presentation is very clear. Thank you!

[@derosoft]

Wow! Superb video... Spend the whole hour without even having paused it! Thanks a million for taking the time to go through all the details. Much appreciated.

[@yousufsait]

What a beautiful presentation style, voice and content. Truly open source spirit. Thank you so much for sharing all this.

[@UpcycleElectronics]

Thanks for the upload, tutorial, and your efforts working on this OSSW project. If anyone really needs to decode an IR device there is a project option available on the OSHW AVR Transistor Tester project for doing this. I know that was not the purpose of this demonstration but I figured it was worth plugging another OSHW project. The origin of the AVRTT project is available at mikrocontroller[dot] net/Articles/AVR_Transistortester -Jake

[@edgeeffect]

I had a little chuckle at that first PCB you look at... the LED pads are screenprinted "Green" and "Red"... but both contain red LEDs... must have saved about 0.0001p per unit with that. ;)

[@user-hi8jf1hu4p]

I was googling around seeing if I would need a logic analyzer later on down the road in my hobby. A lot of people said to just use the oscilloscope. After seeing this video, and that part about the decoder stacking: yep, I NEED one...

[@AnotherByteData]

Nice video tutorial! I'm looking forward to tutorial about other devices supported by Sigrok!

[@boblewis5558]

Given the vast quantity of well-meaning but extremely amateur KZbin videos that leave one more confused than ever, THIS was a highly refreshing change. Clearly presented, well produced (post production etc) and extremely informative showing great insight and knowledge, especially for someone who claims to have only been involved in electronics for just six years (to the date of this video). I wish we had far more of such videos around, this is a great example of HOW to do it rather than the hundreds of, mostly failing, "how NOT to do it" ones. Awesome! (BTW I'm a graduate electronics engineer of over 43 years and a member of the IET for over 46! I learnt a LOT!!)

[@rajagopalnarayanasamy3955]

Cypress released a Knowledge base article that explains how to use the $10 FX2LP based board as logic analyser using Sigrok PulseView open source application.

[@rajagopalnarayanasamy3955]

Here is the link of the "Cypress EZ-USB FX2LP-based Logic Analyzer using Open Source sigrok PulseView - KBA229176 community.cypress.com/docs/DOC-18867

[@In3xorable]

A serious deep dive into logic analyzers. I am just getting started, but I realize I will watch this video several times. This is a really awesome video. I was already subscribed. Now the bell is lit. Thank you fkr all the information!

[@Justsquareenough]

this was really well done! thank you.

[@ehsankazemi3316]

Hi; I have a problem. My cheap version of clone Logic Analyzer does not have any protection circuit whatsoever. So after a couple of months, 3 pins stopped working. I guess some sort of surge or high voltage/current has damaged the I/O pins of the FX2 chip. The 16-channels logic analyzer based on FX2 use the PortB & PortD so I was wondering if I can modify the Firmware & use the PortD instead of PortB that has 3 damaged unresponsive pins. Is it possible or I'm only daydreaming? Thank you very much

[@adev8565]

Yeah, you could. The fx2lafw firmware is open source and there's a 16-bit variant of it that uses both ports. Should be straightforward to take the 8-bit variant and have it use the port D.

[@AnotherByteData]

Joel, you forgot to put the link to CircuitJS: www.falstad.com/circuit/circuitjs.html ! It could be useful for other people.

[@OpenTechLab]

There's a link to the complete simulation in the show-notes. Go play with it! I'll add your link to the clean-slate of circuitjs - thanks! :-)

[@Orionrobots]

I love circuitJs. I've been considering (this may be a worthy project) seeing if I could embed it into a NodeJS/Electron type widget so it's standalone, so I can then start interfacing it in other ways.

[@Embedonix]

Best video ever on this topic! sadly people are more into cats and stuff and you did not get the enough attention you deserve! but keep it up, dude!

[@cr6925]

Goodness! What an eye opener having struggled with a DSO and never having heard of Sigrok or the cheap entry point logic analysers. Thank you so much for putting this together in such an interesting and detailed way! Subscribed! :-)

[@Nets-nutsBr]

Thank you for sharing your knowledge to us. Really appreciate!

[@EdwinNoorlander]

Thanks for your afford for this channel and the open source community. I really trying to help as well, it's only hard to find time, with a full time job and a family. So thanks again. Keep up the good work 👍🏻

[@avramitra]

Watched the whole video in one go without skipping for even a single second! This happens the content has an extreme quality! Subbed..

[@TechNed]

Great presentation. Thanks so much. I owe a lot to the open source movement and do intend some payback (eventually!). Stacking decoders seems such a natural progression, I'm surprised it's so rare. It also seems a really great way of preserving some older, lesser known protocols for posterity, if nothing else (eg. for reviving or investigating some vintage hardware in the future). Maybe (as an oldie) that's where I might contribute..

[@stevebez2767]

Ned u hav any comm links for crypt tech arduino UNO,Leonardo,etc,da Vinci,Hanoi,Babel links des SHA line des crypt SHo-an Singaporeans Thai stickers etc?!

[@TechNed]

@@stevebez2767 Sorry mate, you lost me. I do know that when I had no LA hardware but was trying to revive my ancient 6809 SBC running FLEX, I made very good use of Gillham's LA firmware ( github.com/gillham/logic_analyzer ) that I was able to use in a stray Arduino MEGA I had lying around. It gave 4Msps which although not blinding, was very useful in my 1MHz 6809 system. (Found the prob to be a flaky clock buffer that was causing the main clock to drift but the RS232 rate stayed solid because the 6551 ACIA had its own baudrate generator and crystal which initially threw me). Incidentally, I had really high hopes of using the unit with Pulseview as Gillham's code implements a SUMP protocol but for some annoying reason, it proved really unstable on my Win7 system (just using the analyser through USB-COM ports - NOT Pulseview in general). I ended up using the alternative Open Logic Sniffer client (also written in Java - lxtreme.nl/projects/ols/ ) which, although way more deficient on the decoder front, worked very reliably.

[@TechNed]

Btw, it's very important to point out that I just realised I appear to be using a development version of Pulseview and Sigrok (Pulseview 0.5.0-git-2a09e77). I probably went to the wrong place to download and then later forgot when it came to using it (because I'm dumb). The stable release in all probability would have worked.

[@n3r0z3r0]

You made my day !!! Thank you so much!!!!! Now I'm looking like a kid with a huge cake right in front of him ...

[@axa.axa.]

I was like, 'damn this rando really knows his shit about pulseview and these generic logic analyzers' and sure enough he started pulse view. cant thank you enough

[@icollided]

This is awesome. I bought a Kingst LA2016 on Amazon, and for some reason I'm paranoid about installing their software. Their website is sketchy and I don't want to get a virus on my computer. This Sigrok/PuseView seems safer. I would like to run it on my Raspberry PI if possible. Do I need to flash new firmware to get it to work with this software?

[@metallitech]

Extremely interesting, but please use more lighting.

[@Starlite4321]

Very useful, thank you ! Do you have a link to the Altera Max II board you used starting at 33:00 ? Everything I turn up with Google is pretty different looking. Thanks !

[@hjvanderlinden]

Give a thumbs up if you also are very impressed by the software in this video, but never can get the software to work with your logic analyzer... :-)

[@jago3798]

I have a Nexys4DDR FPGA dev board. I wonder how much work it is to use this board with sigrok. It has a FTDI USB UART bridge connected to the FPGA. It would be possible to use the PMOD extension connectors for the logic channels. Or one could use sigrok to debug the FPGA design by connecting the channels to internal signals.

[@bennguyen1313]

Any thoughts on the 500Mhz LogicPort, or CNLohr's GreatFet One? The latter doesn't use an FX2 but instead all the high speed usb stuff is done on the (LPC4330) microcontroller! The former might benefit from LiteX/litescope/ValentyUSB/Renode/Fomu. I'd love to use Sigrok to display data coming from DMM quasi-real-time. I have a DMM connected to a PC via serial port, and I've written a driver that gets the samples.. so I'd like use the PulseView GUI to transfer the last 100 samples, plot it, then repeat. If it's easy enough, it would be nice if the GUI could also set a trigger, such that it waits until my driver detects the data has crossed a threshold before it delivers the data. In any case, how do-able is this? Looking at John Holdworth's airwebreathe_org_uk, it's hard to tell what exactly I would need to modify in the API. Any suggestions?

[@rjinnh3933]

OUTSTANDING.... Absolutely Outstanding Presentation and Content! After many decades of using Logic Analyzers to ply my craft and empirically learning most everything presented in this vid, I now have a ready reference for the Whys and Hows of it all. What a great job!

[@joeneighbor]

You know for the Saleae Logic clone version you can just download the official software and it works. Maybe if they had a donation link or something so people could pay for its use to be fair to them. EDIT: Update I've tried both now. It's a little tricky on Windows. To switch to either software you have to completely remove the driver to the respective software. I.E. To switch to sigrok I had to uninstall "Saleae Logic USB Logic Analyzer" driver (with the "Delete the driver software" box checked) then run the Zadig utility to install the "WinUSB" driver. Then to go back to the Salease software I had to do the opposite. And do "update" driver on the unknown USB device. The trick is to in "Device Manager" go to "View" and check "Show Hidden Devices". If you do it right in uninstalling, between switching drivers, the analyzer USB will show up as "unknown". You might have to play around plugging the USB in and out to find out where it is in the list in Device Manager. One big thing that Sigrok lacks is the little measure thing that Salease has. The feature where you can cursor over something on the time bar and it will give you pulse timing and/or pulse frequency. Final note: Be careful and make sure if you use a USB hub that is at least 2.0 and above. I pulled one out of a drawer that only after troubleshooting did I find it was an old 1.0 one. I could only connect to Salease at 500k and not at all for Sigrok. Now a stable 12Mhz sample rate with my particular configuration.

[@andyburns]

Joe Neighbor : I asked a seller of the kingst clone if it worked with sigrok, they said no.

[@joeneighbor]

Not sure about the "kingst clone" version and I haven't tried it yet but there is instructions on the sigrok site on how to make the Saleae Logic clones work.

[@RicardoPenders]

Hi, can I use the software to read out my Hantek DSO5072P oscilloscope too. That would be very useful to me because my oscilloscope doesn't have the functionality to decode any signals, it just shows the signals and that's about it.

[@shariqkudcs]

cy7c68013a is a very powerful chip for usb interface. I have used it in many projects in past and is very easy to program. You can also use it to read ccd chips in bulk transfer or send bulk data from usb and write to eeprom/sram for example.

[@jenniferw8963]

thanks for the great video! Seems as though the 16ch 100M logic analyzers are more like $50 now, is this due to the chip shortage? When are things ever going to return to normal again? lol.

[@jago3798]

The BlockRam of the Spartan3E is far less than quarter a megabyte (as you said at 30:07). The XC3S250E has 216 KBits. This is only 27 kByte. For this small amount of memory it should be no problem that the transmission over the CDC driver is not that fast 😉

[@80lab38]

Dude! Thank you so much for your work on Sigrok/Pulseview! I totally prefer using Pulseview over the original Saleae software. And I even got an original Saleae Logic-8 (from way back then, when it was "only" 150 bucks). That's right. I've got the real thing and still use the open source software with it. Not only because I think Sigrok/Pulseview is great, or because I prefer to use open source tools where ever possible, but in this special case it's also because that's how much I think the original software sucks. I wouldn't even call that a tool, because it looks, feels and behaves like a toy. So thanks again for providing an alternative that's not only open source but so much more usable!

[@chiwbaka]

A pearl of a video buried deep within the attention grabbing crap that's commonly put out on KZbin these days.

[@bobweiram6321]

I had no idea you were the author of sigrock! It's incredibly well designed. It balances functionality and usability without overwhelming the end user. It has a large set of decoders for a surprising number of protocols. Is there a way to add a decoder without breaking out the compiler?

[@ElectroreparaBlogspotES]

Thanks for the video, it is really good! I have one of the cheap FX2LP boards, quite interesting piece of hardware for the price!

[@ptrooms]

Hi Quality information feeling myzelf back to be in college. Easy listening & calmly spoken. Good outline of pros & cons of different (logic/sampling) approaches. Furthermore, I like the sigrok (oh/os) itself. Well done !!!

[@murrij]

new subscriber. All of your videos are great. thank you for your time doing these.

[@OpenTechLab]

+murrij Thank you for watching! More videos coming soon.

[@keen2461]

Wow, very well put together video. Impressed to say the least. Thanks for sharing your knowledge.

[@perezmeyer]

Ha! I remember pulseview's first steps... thanks for it and this video!

[@ashwinnair6521]

Take a look at pull-request#148 at sigrok's github mirror (sigrokproject/libsigrok/pull/148). This adds support for using FX3 devices as 100MHz 16 channel logic analyzers using sigrok .

[@ashwinnair6521]

Check this for FX3 firmware source code EZ-USB™ FX3 Explorer kit as 16-channel 100 MHz logic analyzer with sigrok PulseView - KBA233652

[@josemesquita603]

Great, excellent, amazing information from someone that is skilled with the required knowledge to present properly this materials. Thanks a lot!

[@campbellmorrison8540]

Ive been involved in electronics all my life and Im now 67 but never in the software area and to see the work put into Sigrok is amazing, 99% of it goes clean over my head as much as I would love to understand the detail. Your work is truly impressive, I too would be incredibly proud if I had been able to do this level of development, stunning stuff thank you

[@pepe6666]

this is like hardware hacking video of the century. my god.

[@daviddavidson2357]

"This board has 2007 written on it" There was no need, the red solder mask told me that.

[@StefanWolfrum]

Just stumbled upon your awesome 6y old video and was wondering: what kind of logic analyser would you buy today where we have USB3 and type C connectors? 😳

[@7yep4336dfgvvh]

Doesn't seem to me there have been many advances. I've bought a dslogic plus for 150 dollars recently. Still uses usb2, and it is apparently one of the best out there. The cheaper under 10 dollar analyzers seem frozen in time from when this video is made.

[@matthieumichon8400]

Thanks for producing this comprehensive video, very nice work ;)

[@pat806]

Great video, and thanks for your coding contributions.

[@paulkatiem]

Excellent video!!!!!! Thanks so much for taking the time to create this super useful content!

[@BrunoAraujoCoutinho]

OMG! This is definitely high quality material! Thanks a lot!

[@BenBilesBB-box]

incredible ! thank you so much for this video :)

[@JJ-ur7uu]

Less likely to 'Yank' something off, i am offended!

[@EdBordin]

I'm all for cheap hardware but do these clone devices use the vendor's firmware? In that case it's probably not completely guilt-free...

[@OpenTechLab]

If you use sigrok, then most of the time it's open source firmware

[@jerryhubbard8578]

A demo of Rigol Oscope interfacing would be great.

[@jontiolds]

A great video and very interesting. Thanks.

[@FixedUntilBroken]

After years of working Microcontrollers and circuit boards I am just now getting my first logic analyzer. What pushed me over the edge to get a new tool is the fact I have been having trouble writing to a old microcontroller and I need see what is being sent.. Wireshark wouldn't work on windows for the com port and I didn't want to hand decode them with o-scope. Great video!

[@larschristoffersen1847]

Great great stuff. Thanks for taking the time to do this!

[@Orionrobots]

OMG - Katpton Tape to hold down experimental electronics bits - now why hadn't I thought of that! I've recently got one of the Saleae clones, and after seeing this realise that the fx2 chip is in a bunch of other various debug/jtag devices I've got hanging around - which says to me I may be able to repurpose them given their original function is pretty obsolete.

[@OpenTechLab]

+Orionrobots I find electrical tape is a bit nicer for this - but it doesn't look as cool

[@Orionrobots]

I've both in my lab, and only considered their workholding potential for the CnC machine, not for keeping stuff in place while probing. I generally have ended up contorting, or trying hard to ensure the soldering "helping hands" don't contact anything. I've also got painters masking tape. Shockingly, I've let myself run out of duct tape.

[@boblewis5558]

Depending on exactly what you are trying to hold in place and the flatness of the bottom surface, I find those "sticky silicone" mats designed to hold things in cars work brilliantly. Really cheap on eBay. One word of caution though, they are not very heat resistant so be careful if using them for soldering! Also, although superb at holding breadboards in place they tend to grab the waxed paper protection under the boards' adhesive pad which then is removed when lifting the breadboard - my solution - stick Kapton tape over the adhesive pad (or even Scotch tape/Sellotape) - works even better then. These are the kind of things, but available in all sorts of sizes and formats: goo.gl/XL1rEQ

[@irawarnaca8133]

Wow, great video! Thank you.

[@Steve_be]

Love this video, I suffer from dyslexia and struggle to follow links and words, I was wondering if there is a link you can point me to to down load all the files I need to set up a logic probe, I have the 8 ch clone, I would like to have all the decoders, I have tried to follow the install but I can’t understand what I need to download, I hope you can help.

[@RixtronixLAB]

Creative video, thanks :)

[@matteomasciocchi6556]

is sigrok capable of analog acquisition (with drivers that supports that)?

[@matteomasciocchi6556]

sorry, just now I reached the end of the video... answer is yes. great job, waiting for the analizer to be delivered to test it out

[@matthewbucknall8350]

Fantastic video - Thank-you.