Hi welcome to everyone's favorite segment mailbag Monday yes it's mailbag Mondays back because I Put a poll on the Eevblog forum and I asked would people like to see to bring back the weekly mailbag Monday segment as I used to have it and the majority of people said yeah I'd love to see it but unfortunately the only way I can really do that is my mail bags have become a bit of an epic. like I open 6, 7, 8 packages something like that. they're 40-plus minute videos. so I thought I'd try to go back to the regular mailbag Monday segment where I release it every Monday ish every week to pin it on time zone that you're in.

They can be more than a 24 hours time difference between you know New Zealand and the ass end of the planet. So the plan is every Monday again. but I'll only do two packages every time just to keep the video length down. So anyway, let me know what you think about this new format down below in the comments or over on the Eevblog forum.

So let's get into it: I've got the knife. That's not a knife, that's a knife. Let's go I might actually have more than two per episode. It depends what I'm going to do is just like shoot a bunch of them and then just I'll still show.

All mailbags are eventually, but I'll open a bunch of them and then actually decide sort of like pick and choose some to include in each particular art episode. But rest assured I still will eventually show them all anyway. we got one from We're but the idea is like to keep it down to like 15 minutes or something like that. Let's try it.

We're make. um awesome. um tall so we could have tall pawn? Oh yeah no that was had a weird Foley thing in it. Whatever.

Anyway, we're all over this become a string crap for our protection. What are we got? Steve The Speedy Who: It's a screwdriver, but it's a special screwdriver. Let's check it out. Whoa.

Hang on Yeah. look at this baby. Come out of there. Oh Rip Attachable chips.

Oh jeez, look at that. Look at the cardboard in that. Wow, that's pretty Jesse a minute Wow Fancy pantsy. Okay, that's motive.

It's like you know, like a laser cut. I'm sure it's punched. Yeah yeah, it looks punched anyway. um Jesus was a little fancy-pants You look at all the manuals and stuff.

d'oeuvre I don't know what that means some customer Club thing. Whoa cool. This fancy case so we got a Jersey case with it. oh that looks like we've got an 18 650 charger.

Terrific and looks like oh look at this. We've got a whole bunch of tips. How do you? oh oh oh oh tip porn. Shame.

They're like all in like a thing like that and they're not like individually done like that fit. Anyway, the whole idea is that this is apparently if you haven't guessed it already, an electric screwdriver. So single 18, 650, 18, 650 in the bottom and Bob's your uncle. Oh yeah, we're gonna light Schmidt huh Matey Germany Let's check it out.

Oops I Almost miss the battery here. thing. those are better in the box but there's also a battery in here as well. Keep power produced for where the I see made in Japan but assembled in China Oh Extensive QuickStart Guide one, insert battery to insert screwdriver.

Tip three Twist the thing to make it go Fantastic. Two times faster than what electronic rotation I'd like to think so it's a battery-powered screwdriver I'm Point four Newton meters of a torch doesn't have talked protection like I Don't think it's adjustable torque, but maybe it has a limit and fix with feeling. It's got proper type approval for a high voltage. Awesome.

And it's recommended by doctors apparently who have to operate on you on high voltage. Hmm. oh there you go. Twice as fast thanks to a three step process particular material Electric fastening with protective function to prevent damage to materials.

Max Point four Newton meters Increase your control fixing by hand with full sensitivity. You got to have sensitivity on your grip, that's for sure increases your efficiency. Electronic ratchet for rapid fastening without any regrouping. We don't have to regrip your shaft look at that.

Oh compatible with the slim bit system. Maximum freedom of choice. Open system with rechargeable standard battery offers you full protection. tested at ten thousand volts, Ac and approved for a thousand volts.

Nice. Protects your health. Recommended by the German doctors and therapists of the German Association for healthier backs it. Can't argue with that is that maybe some chiropractic? Woowoo! So there you go.

There's a three step process. You got to do regular screwdriver mode, then of course our point four Newton meters talking and then you screw up by hand up to eight Newton meters. Otherwise what? It snaps the shaft I don't know. it's the specs for those playing look and how a matter in 27 grams I p44 protection charging time 75 minutes.

Well that depends on where you charge the battery I think it's chargeable inside is it? Hmm. Anyway, um they don't tell you how long it like typically lasts. How many typical screws do you get? You got various lighting modes, low battery indicator stuff like that. so maintenance cleaning.

that's month, that's it. Shh All right, let's check this bad boy out. Don't know about the box though. Um I think it's a bit overkill, you know? like anyway, oh did I just I just accidentally touch? that light comes on Anyway, it looks and feels very schmick made in Germany Of course there you go.

there's a look at it. zero to eight Newton meters of torque. raid it. Of course it doesn't go up to that in the electric mode.

Yeah, battery charger looks very nice. 18 650 Of course it's not just useful for this. You can use it for anything, so that'll replace a little Krustyburger one that I've got. so that's terrific.

Is that some sort of looks like an extender? Is it? Um, because that's not going to? I Just I Don't think that shows into there, does it? Oh yeah, there we go. Whoa. Whoa. That was satisfying.

Hang on, let me do that again. Oh Beautiful. Just got a charger with well as weird ass plugs on it. Absolutely useless as tits on a ball here.

but I here we go. Here's what we want to see. Look at all the tips that comes with it. I've got some pause ease in their regular Phillips Very nice.

It's a bit of play in that. yeah, a bit of wobble in that I wouldn't like to have seen that oh goes in a decent okay. Like the problem is that you can't see the orientation of how it goes in because it's like as far as you can tell that is just like a circular thing. but of course it's not.

It's a hex thing and well better play in that not. Oh, it didn't do it the first time. Boy said it. I assume it doesn't detect anything when you plug it and unplug it.

Okay, if I put that in, let me do it. Oh no, there we go. It just seems to shut up. Shut up.

It's definitely not a torque based ratchet thing I'm not of it like it, just it just cuts out easily. But I'll try it go the other way it it's a heart of time. I'm having a harder time stopping that it doesn't like slip at the end of the okay well I'm guessing that kind of makes sense in that it just stops electronically when it gets to that point. I've got no way to measure the torque on this thing really.

but yeah I guess it stops electronically and then you're free to go like that because if it ratcheted I guess like if it like slipped like a regular talk drill for example then you wouldn't be able to just like as soon as that finish electronically go in like that you then you wouldn't be able to just turn it like that cuz you'd have to change modes and it would like you know to fix it in so that you could go like that. so that's that's purposely designed so that's fine. All right. Well let's see if we can open something here.

I've got my are f cking wah fail. Can't do it. can't do it. Sure enough I can go like that by hand.

There we go. Once, it didn't have enough torque to unscrew that on the back. Oh, let's try it again. No no I've got to get it going before it'll do that.

It's not particularly fast. Look down in there, you can see that there's like a pogo pin down in the bottom there. that's not too shabby. don't mind that at all.

And they've got metal ring all the way around here and that's they've got a ring seal on the back. not too bad at all, and that looks like quite a reasonable system. It should take a reasonable amount of abuse I would think it feels really good. Quality plastic and everything else, so no worries there.

As you'd expect from we're so yeah, it's nice and solid. Can't you know? can we bend that? I'm trying to. but I maybe I caught. like if I put a lot of tension on that, it could maybe break it.

But yeah, it seems pretty robust. Don't mind it, don't It just dawned on me these are 18 500s, not 18 650. So I don't have anything I know of anything else that uses 18 500s? That's a bit of a mistake I mean surely they could have made it a little bit longer to accommodate the standard size 18 650s. I Think that's it like cuz it it doesn't right? it could have been longer, Mate? Well I don't know I've got a smallish hand I guess and it's kind of like almost seems a bit short.

Maybe they could have made it a bit longer and it still would have been fine. So yeah, that's a bit of a fail. 18 500s Give me a break cuz there's an 18 650 with our protection and it's not hugely longer than the 18 500. So come on.

Well let's give it a bow on this. As I said, it doesn't start like that. You've got to like. give it a start and then it's probably not the world's fastest.

Oh yeah, there we go I give them a little just a little turn like that. Yeah, that's not bad. that's working Alright, no worries. Yeah, just gotta give it a little slightest twist as a start.

so probably would have liked to have seen it maybe a bit faster. maybe have dual-speed or something like that so you can select it. But yeah, that's alright. Ok let's now welcome back in and and the form factor with them like the usability with that is is not too bad seems to work.

So they thought about the implementation of that so let's put it back in Now they're gonna stops and you cut it. Yeah, it's not too bad, just give it a like a little quarter turn at the end like that. and yeah, it's not too bad. There's a bit of slip in the thing as I go like that and there's a bit of slipping the motor before it actually starts to turn like that.

So slight downside there, but not not that bad. that's that's not too shabby. It's a shame, it just doesn't have like a proper shame. It's not a proper talked thing, but I guess that's not its idea if you want that, you know you've got a pro by.

you know, a proper Panasonic cordless driver. something like that. one of those one of those professional ones. you really want that sort of business.

But stairs to work. Alright, so it's not bad. Seems a really good build quality. I didn't don't think I think it'll last a long time and I think you'd have too many issues with it.

The battery life remains up in the air. I Don't know what the battery life with this thing is. Shame about the 18500 instead of the 18 650, but the killer with this is the price. This is 500.

Ozzie Barks This is more than twice the price of the Panasonic professional cordless screwdriver. with the talk you know with the adjustable torque, ratchet system and everything else. granted it's it's a different class of thing. This is like you know a thousand volts are insulated and stuff like that.

but I don't know why you'd necessarily need you know a thousand volt isolated screwdriver open in hundreds of screws like I Okay, you know it's nice, but I don't know why that'd be a requirement. If you after a professional screwdriver think the Panasonic's probably a better option. Granted this thing has your traditional form factor like this so the ergonomics are of it are very very good. So I guess you can't compare them.

They are different tools to a regular court. a chuck based, you know ratchet talking cordless screwdriver and the Panasonic's a totally different form factor. so this I don't know if this is unique I Don't know of any others that have the same similar sort of form factor, so from form factor point of view, as a regular screen, you can just automatically use it as a regular screwdriver like that. no problems whatsoever and then just go like that.

So ergonomically, it is very good and works very well. But yeah, Jesus Pricy 500 Aussie bucks. Unbelievable. So it does seem to have limited functionality too in terms of not being able to set the talk set in and also the speed of the thing.

It's a slightly on the slow side, but it's still very useful. If you open in a product with you know, dozens and dozens of screws like RF cans and stuff like that, then yeah, it's really going to save time, no doubt, but probably would have liked or seen. you know, like maybe a switch on it, just multiple speeds or something perhaps? And and and really, it doesn't, or even just a velocity control kind of thing. like you turn it a bit harder and it goes faster.

but that's not the case here. Doesn't matter how much you do that, it's just the one speed. thank you very much. Andrew Haas from New York but all my viewers in New York and well I know what's in here.

You're probably not going to pick it by the size of this thing, but anyway. Well, it's one of these little lot. USB Doodads. Let's have a look.

It's an Open Everything Hardware Firmware Software for Channel Oscilloscope For a recent sensational crowd supply campaign, it's the Hasso scope van with the 60 Meg Anyway, um, 60 Meg Analog bandwidth sampling rate is up to 50 Meg's sample. Second, that's good enough. or for a hundred and fifteen US dollars, you can plug them together to instantly add more channels as 20 of our nifty features. Okay, that's pretty groovy, but it's all about the front end.

I Can see that the front end is got a couple of trimmer pots on there and stuff like that, so it certainly won't match a regular scope in terms of like input functionality on the low ranges and everything on the front end. but I presume it's only an 8 bit scope. But anyway, let's check it out from and it's a four channel 60 mega analog bandwidth 250 Meg sample per second cascade Herbal hence the connectors on the sides and join them to get more channels digital. seen us be of course Digital Storage Oscilloscope Andy writes I Know you're not a huge fan of USB oscilloscopes, but I'm hoping this one will change your mind.

It's an Open Everything Hardware Software firmware software for Channel Oscilloscope from a recent successful crowd supply campaign and it's got decent bandwidth and sample rate for a hundred and fifteen Yankee bucks. and well, let's take a look at it, see if it's any good. So the problem is, you can actually get cheaper USB Digital storage oscilloscopes Shona likes of Oh One and Hand Tech that are complete in a case for less cost than this. So yeah, it would want to add something special.

What? Hey, they're typically only two channels. This one's for channel it doesn't have it usually doesn't have the 60 mega analog bandwidth. doesn't have the higher sample rate 250 main samples per second. Not Cascade herbal like this one is.

This one's got a little screen from what I've seen. that's it. might be optional because the ones I've seen online don't actually have that. So it's got to offer like you know, a better performance or better software, a better functionality or something like that as opposed to a cheaper, more polished product from at least a you know, not a huge brand name, but at least no one brand names like Oh One and Hand Take.

Now let's take a look at the front end. We've got the four BNC connectors, four channels with uh, switchable 50 Ohm and a 1 mega termination and that's fine except for our first problem. Let's just use some Oh One Probes. Houston, we have a problem.

How about these a post Scope branded ones? Nope. Keysight probes. Nope. I Did finally find one that actually fitted these GW in stick ones.

Just. But even then they're slightly splaying out. So I think you'd have a hard time getting in the third or the fourth one. So basically, just consider this unusable with any type of X Ten probe.

and that's ridiculous considering the quiet. Otherwise quite good 60 megahertz analog bandwidth supposedly. And that's a yeah, that's a fail, but it works fine with standard B&C cables. But yeah, that's pretty much all you're going to be able to use it with.

I Think So Really right there. it's claimed to be a like a proper oscilloscope. Nope, sorry, it's not. You've got to have the switchable.

You know the Times Ten probe capability, the lower capacitance to get the bandwidth required, and also considering the lack of our input voltage ranges like this compared to a normal oscilloscope, you need the Times Ten probe. You get the higher voltages as well. So yeah, nope. And herein lies the next problem, which I was hoping wouldn't be the case, but it often is with these type of projects is that it's all on Github and I'll get to that in a second.

Let's have a look at the original crowd supply. raised 18,000 of $10,000 Goal: Excellent, Well done Mick makes had it comes to I Reckon it's pretty decent deer. So for the price, first: open source, open hardware, flexible, small, cheap data acquisition board. I Think we're going to find that this is more of a data acquisition board than an oscilloscope.

You already can plug oscilloscope leads in it, so already? I Don't class it as an oscilloscope who needs it? And why? High-speed circuit sectional? Oh, and FPGA programming data transmission protocols? All that sort of thing, which is great I It's probably a decent platform for that. Now the problem is here: you can reprogram the firmware, but you can only do it over the JTAG interface and you've got to use the alt error like Max software, so it's like right there. that's not great. Eva It's terrific.

Maybe if you're losing as an FPGA development tool and you want to hack around with it and customize it and all that sort of stuff. Anyway, we've got two games per channel plus minus 5 volts and 500 millivolt. Rangers See, that's not enough. That's where you need the times.

10 probes they get greater than your 5 volt 5 volt range and also the bandwidth are required as well. It's got spare digital I/o lines and 9 additional analog 1 Meg sample per second 12 bit ADC s. That's pretty cool. Ok, so it's really quite flexible in terms of single header input ADCs at 12 bits all the BNC ones for 8 I think it's probably us about they probably should have made dedicated this to a data acquisition a more geared towards a data acquisition of 4 channel data acquisition thing with the 12 bit one make sample per second B and C inputs perhaps.

but you know? So here they are. comparing it to the Rygel and the pico scopes and the O ones and open scopes are smart and right off the bat it's it's not. Yeah, it's it's price per bandwidth is probably get. An sample rate is probably going to be pretty decent, but here's some screenshots of what we can expect.

But let's go back over to the Github here and here's my problem: I I'm not a user of github. I Kind of can like maybe download some stuff but it's a pain in the ass. Look, I was looking for the front end of this thing. or where's where's the schematic? Ok I go into the Eagle See the thing is it doesn't tell me which one is the schematic.

I Had to go through here. Of course we got the Eagle schematic and stuff like that don't have Eagle installed. It's actually the PDF document here which we can actually download and open up. But there we go.

We finally got our schematic. Geez Look, they got lines going through the if PGI hey that's been how you doing what's going on? What's it? I'm sorry, but what? Sorry, What their? we have a serious do we have a formating problem? Is that how the schematic was? That's a pretty horrible looking schematic. I Must say Wow What's gone wrong there? That's got to be a formatting. Issued a PDF Anyway, that's terrible that needs to be completely tidied up.

That makes absolutely no sense whatsoever. There's no flow to that. There's no traditional left-right flow for your signal inputs or anything. This is horrible.

Here's our looks like this is our B and C here is it. Wow Not good. This is not good. Oh wow.

Okay, so there are they out. There are two ranges. Okay, so that switches from okay, that switches our range, does it. and then it goes into a max forty four one six which is a high bandwidth Op-amp and oh wow, that's just that.

it's terrible. So I thought this must be a problem with like the PDF output formatting or something like that because I've seen things happen like that before. So I actually installed the latest version of Eagle and I load it in the Eagle file from the github and nope, it's the. That's exactly what it is.

Um, Wow this is just shocking. Like I've never seen a schematic. I Don't think I've ever seen a schematic this bad before. I Don't know what the deal is here.

All that like all the designators and everything all over the shop. and like, if you go down here sorry I don't know how to pan on this stupid thing, you've got the wires going through the middle of the chips. This is just. it's just insanity.

Absolute insanity. and like these are you're being seized up here like they did. Okay, kind of right. What like like right.

and just these over here. What is this like I words cannot express how bad they said. what is it What? What? Words cannot express how bad this is. And I'm supposed to be impressed by this.

Sorry, no whoo. Now herein lies the problem with open source hardware, right? This is supposed to be all open source hardware. Fantastic. Ok, and so many hundreds of people have presumably already gotten their thing on their passo scope on crowd supply and everything like that.

and presumably all this. They've all seen all the release material and all these sort of stuff. So there's at least many hundreds of people who have presumably seen this and not one of them went I can't make heads or tails of that schematic. That is just insane I need to tidy that up.

Not one single person has bothered to go in there and tidy this up and then resubmit it to the github. you know. And this is supposed to be the advantage of open source hardware because if I was back in this project right and like I'd want to look at the schematic I'd look at this and I go What? I can't understand how this works with a schematic like this. This is just you know, insane and don't like if it was me I probably would have if I was in our team I would have just gone in there and tied it up and said here you go, you then just resubmitted it or whatever and you know here's a tidy version yet nothing.

That's what we're stuck with. So yes, sorry, that is a complete and epic fail. That schematic. Of course that's not a reflection on the usability of the product, so that's just the schematic.

But really, that needs to be tidied up. Makes me want to do a video. In fact, I probably have done a video on how to lay out a schematic, but maybe this is a really good example of how this can be tidied up and you know and to make it usable because at the moment it's just. it's just silly.

And as for the PCB you can see a crazy thing is like the there's no designators. They've got the values on there. Okay, fine. if you want to put the values on there, that's great.

But where are the component designators? There's no point putting one mag on there, but you can't fall out like it should be. like oh, nine are ten. So before I install the software I've got to install Python My machine doesn't have Python and you can't just install any version of Python You got to install, not the new version 3. You've got to install version 2.

so I like it. Just ridiculous I'm fine if you do this every day. I named Jack All About Python Don't have it installed I Just want to run a Windows XE to use my oscilloscope. Is that asking too much? So we'll install Python 2.7 1, 5 64-bit It's the latest 2.7 that I can find or two point X version that I can find so we'll give it a go.

Now we have to download the software from the github and I like just clone or download like download zip and I want the you've got to like download the whole lot I can't looks like I can't go into this I don't know how to use get like Ok let's see if Dummy Meek and what stethoscope draw draws waveforms I Okay anyway we've got apparently if you I think my driver installed correctly, the USB drive is supposed to install that there if you haven't done it. but let's see if it. Well I saw something pop-up to have to go to the command-line Probably all right. So what am I doing here I Must admit there is a very comprehensive our guide on here and a basically yeah QuickStart here it is tells you to do down, clone the github and Hasso Scopes software and then Python draw.

So I've got to do that. Apparently run the software in your computer, use the Python Herso scope window that pops up Okay but yeah it is actually very comprehensive I Kind of like it. It's got all the it's got all the pictures and pin outs and all sorts of stuff. Anyway, the screen just pops up as like I don't know who is that so it looks like he can interface with the Raspberry Pi or something like it's not a direct hat or whatever but you can do I don't know something troubleshooting guide all that sort of jazz.

so yeah is over sampling serial connection or reset switch all that sort of stuff. So yeah, very nice comprehensive guide thumb after that. So I do exactly as per the instructions Python has a scope draw py and it doesn't work. look I know everyone's just going to go though right? I'm obviously doing something dumb but I follow the instructions and and here it is about halfway down the documentation.

Install: Python Done that. Run this command line script here it is C Python 27 scripts pip XE Install pH serial not a mat plot Lib pH Side: QT spy script eat obviously don't Okay so let's run that and see if it works. collecting size stereo Okay so since storing some sort of serial driver do daddy thingy great. this is what I want to do before I run my to be impressed with my oscilloscope right? my USB this will change my mind.

Still gone but granted is in the manual. Well huh? Okay, okay let's try it now. Apparently the Raspberry Pi thing yeah, the the Python application that we're going to run now runs on the Raspberry Pi so that's what the deal is there. that might be an okay for like, you know, if you want to do some stand-alone data log e like multi channel data logger thing and you control it all with the Raspberry Pi and you hook it up to HDMI Maunder or whatever that could be, they could be useful.

Let's see if this thing works. Python is not recognized as an internal command. Well, that's what it said to do loading. Here we go.

Yeah, we're in like Flynn Check it out. Where'd he go? It's live updating. Can we go fullscreen on that? Alright, that's updating. What? Five? Six? Eight times a second? Something like that.

Okay, it's pretty groovy if I rub my fingers over the back of it. Yeah, there we go. Got Sutton Got an impulse anything microphonic? not Bob again yet. sorta the super game these ones here.

Whoa. - Three: What? Why is there a 3 volt offset - minus 3 volt offset on super gain? Like it's only got two ranges? then we've got 50. Oh, and why is there? Why is there a voltage of when I switch to like the 1 Meg Mode 1 Meg mode. Now why is there a half fault offset? 1 volt with super-gay are so one may be.

Super gain gets us close to 0 but not zero and then we've got like a fixed. How do we like? Can we change? Not? We can't click on any of this. Can we click and drag any any cursor? No. Oh okay, right.

Okay, so it looks like we can. Okay, so our right mouse button changes our cursor thing. Got all four channels. but I don't like.

but that's look. 50 volt, 50 ohm Input termination. Nothing connected - 3 volts. Seriously like come on.

what is like and and what options are we got? What's that? It's not horizontal scroll. Oh this is. oh no. Oh that moves our window around.

Oh ok. so we can drag. Oh X's like that. Okay, oh gee no.

I want to be able to right click on that and set my axes? I don't want -. wow, that's terrible. Muriel Wow No. All right we got Zoom.

Got some sort of control borders like borders. Our point one, they're like what spacing around there? Oh yeah, right. - go fullscreen screen kind of thing. Okay, tight layout.

Oh that's better. except all the text over here is chopped off right? So reset. There you go. so it's DC coupled.

So why we get in that? RMS Eleven Point three millivolts? What? and close. Where's out? Like where's that waveform updating X-axis Oh my goodness. look at. look at the decimal places.

off you're a decimal place. fanboy. Rude. I've seen enough already.

- no, this is just. this is not an oscilloscope. Okay, it's a data acquisition learning platform or something. I don't know if there we go? I Press home and we're back to minus three.

Like should I even bother putting away form into it? Seriously? I Mean you know Time base microseconds. Where's the microseconds per division? Where's your horizontal time base? Like you know? Well, we're two microseconds per division. They're shortcut keys. Okay, hey, there's yeah.

I Remember seeing shortcut keys in the manual? Hang on. So here we go. Here's our shortcut keys toggle, rolling trigger So it's like a command line like hotkey interface. That's just ridiculous.

Toggles high-res mode on by default. click here for details. This is just neat bit. ADC By the way, I believe I didn't even look at the ADC used on it toggles four times over sampling four hundred.

make samples per second. You know, Look, you can probably make this thing do stuff but I just don't see the point in it is not like I'm supposed to be impressed by there's supposed to change my mind about USB Oscilloscopes Like there's not a single thing about this that I like as a like as an everyday use of Silla scope. Not a single thing we can get a log scale axes linear I Gotta go back home to turn on my waveforms. I Just look at this.

You can execute I Squared C commands to the I/o encoders C Code I mean that's like you know Hawkins Delight I guess right and the SPI command to the ADC so you can send SPI commands directly to the ABCs Okay, if you want to scrip something or or do something like that, but like, seriously like and it doesn't even know that we've switched ranges right? The the app thing does not know that we switched rangers like so how are we supposed to know like we're supposed to like manually multiply like I assume it's one volt per division on the normal mode. I Know, Let me see if I can at least get a sine wave and then I'm done. Okay, I'm feeding in a ten megahertz for volt peak-to-peak sine wave and obviously we're getting some alias in there. By the way, if you want to see it, kinda sorta shows up on the screen but not really.

There you go like it's not even coming up as proper like full screen or anything. so like it doesn't match what's on the screen. So that's like yeah. I I don't know what the deal is there.

That's okay. So I'm feeding in one volt. RMS Now you can see RMS down here. Point nine volts.

RMS that's with hang on. Oh no there we go. that's with the 50. Ohm Terminator on.

let's drop that down to one Meg Shall we? And there we go? Is there one mega a sine wave? How do we set up our trigger? Oh there we go. Oh there we go. There we go. It just is that because I clicked on it.

It's that because I clicked on it. Oh, look at that. Okay, hey guy. Yeah, you click inside there and that's your trigger point.

That is totally not obvious. but it does that. It's better. jitter there.

But there's our one. Meg sample rate. Like it. Like where does it tell us what sample rate it's using? Weird.

like how can we change the horizontal time base? I'm pressing some arrow key. Oh there we go. I'm pressing the right arrow. There we go.

and there we go. It's Alsu now. Well yeah, it's really alias now. well see.

what is this offset thing? What is that like I all I'm doing is changing the horizontal right. It's all I'm doing. Oh no, no there there we go. Well, seriously.

and I we were seriously I only seen before Ere we go. I should have twigged by the time base set in there. but look, it's just jumping down I'm not doing anything I'm just pressed in left and right arrows which changes the horizontal 1, 2, 4, 8 sequence doesn't even have you one to your traditional 1 to 5 sequence. Nah.

User interface fail. Sorry. This is if this is supposed to be an oscilloscope that is no good. You have to make it look and work like an oscilloscope.

and what's that cross? What's that crosstalk? we've got on the purple channel which is Channel 3. Oh no, it's always there. Wow, that's a lot of noise on the purple channel which is channel 3 got nothing plugged in. and what's the look? the screen showing some weird ass half waveform thing I don't Wow no look like what is that? What? Like what is that? nothing? not I've done I'm sorry I'm done I know I'm done.

Well yeah, check that out. There's something you'd like. the same channel. same signal fed into there I got the same gain on each one.

they're all 50. Ohm terminated. What on earth is wrong with Channel 4? Dude. look at that Wow like and their different amplitudes.

What the what? Like there's something seriously wrong with this. So I like something seriously wrong I'm done I am sorry I am done on this. sorry Andi thank you for sending this in. but no, this did not change my mind about USB oscilloscopes only made it worse.

They I sorry please people let me know if I'm being too harsh on this. but there's not a single thing I like about this at all. So I well maybe apart from this as I said like cascading together I don't know how many multiple channels you can put together. not sure about the Power Distribution between them and you know all that gear can power one and it syncs across and maybe as some sort of as I said some sort of like educational thing FPGA Educate Python an FPGA educational tool or something.

but as a your workable oscilloscope, forget it. Sorry, thumbs down Andy So if you like this new well it wasn't really shorter because it's like half an hour older probably. but you know only like a couple of items per my old bag. But if I can do it every Monday let me know if I be give another big thumbs up.

And as always you can discuss down below thanks to everyone who sends in mailbag and yes I will eventually get to them all so thank you very much. Catch you next time.