A new oscilloscope with wifi/lan/usb on indiegogo.com

[ataradov]

Please use proper quoting.

So the entire idea of HTML5 falls apart. You now expect us to write iOS software as well?

[ataradov]

Yeah, but is not the whole selling point of this thing is interface customizable through HTML5? And you loose that once you go to a fixed app.

[Bassman59]

Please use proper quoting.

So the entire idea of HTML5 falls apart. You now expect us to write iOS software as well?

Now the app can run on IOS.you can try.

Your app is in the App Store?

[free_electron]

what is wrong with all you people ?

is it so hard to understand that this things GUI is a html5 based webpage ? you dont need no stinking apps.
open a web browser , point to the modules ip address and done. the box serves the code. it detects what browser is connecting and reformats the gui accordingly. so irrespective if you open the connection from an android ios windows or linux browser : you get served a gui that is appropriate for your device.

he exposes an api through the web link so you can write your own post processing stuff by simply opening a websocket.

that's all.

there's been several times the call for galvanically isolated scopes. well, this is one. it doesnt get more galvanically isolated than through a wifi link.

stop bitching about this thing. i think it is a very good first attempt. the technical specs are a bit low but that may get fixed in rev 2.0

[ataradov]

is it so hard to understand that this things GUI is a html5 based webpage ? you dont need no stinking apps.

And that's where you are wrong. Your idea is correct way of doing things, but what is being pitched here does not reformat, hence the need for apps. Or at least that's the way I'm reading OPs replies.

there's been several times the call for galvanically isolated scopes. well, this is one. it doesnt get more galvanically isolated than through a wifi link.

For $300 you are better off buying one of the branded scopemeters and power them from the battery. They will have better parameters as well.

[miguelvp]

And that's is why no one is funding it.

Flexible funding doesn't bring a good feeling for people to promote a product because they might get nothing in return if the goal is not reached.

I get why you retracted your previous promise but that's why no one is backing up your project because they don't want the risk on them as you don't want the risk on you.

[Rasz]

Hilarious thread. Culture clash and language barrier at its best 

I really like how c9981 invents fake specs out of his ass (sampling, bandwidth), shitty chinese product style, on the spot and is immediately shocked people complain about it Its perfectly reasonable to LIE IN YOUR FACE in china, so poor c9981 doesnt understand what is happening

/subscribed 

[TheAmmoniacal]

Give the guy a break! I know you all have bad prejudices towards China, but there's no excuse for being so blatant about it. For what I can see it's just a hobbyist trying to develop a product, if it's not for you it's just not for you.

[ataradov]

Well, most of the criticism was justified. Use of improper connectors is not a good idea even in one-off device, much less in something you plan to manufacture and sell.

[Stonent]

I think we all know wifi is wireless. The point was, you have two USB-A sockets. For a USB device.
Please don't regard us as dumb enough not to know the difference between an 8P8C and a USB socket.
------------------------------------------------------------------------------
you are right.
It is not good that both of the 2 USB socket are  same type.


The 2 usb socket:
one for Oscilloscope and Debug
Another for extend.
If the 2 USB socket are same type,the usb line can be general .
If the 2 USB socket are different type,user will feel clearly .

Anyone has good idea about this ?

Your native language, what is, hmm?  It seems not to be english.  In fact, very confusing, is it.  Yeesssssss.

[janoc]

Your native language, what is, hmm?  It seems not to be english.  In fact, very confusing, is it.  Yeesssssss.

I wonder how good is your Mandarin (or any foreign language) when you are mocking his language skills. I think his English is decent enough to get him understood, perhaps with a bit of effort here and there. This is not a school where you get marked down for mistakes in grammar.

A bit of tolerance, please.

@c9981 It would be really helpful if you could reply bellow the quoted text and not in the middle of it - that makes your replies very hard to read.

[janoc]

I am sure this has been said before, but a "scope" with 100MHz real time sampling is pretty much a toy. If you want to see anything else but a sine wave, you will be glad to get an usable bandwidth above 10MHz. 50MHz with 2 samples per period is not very useful apart from seeing whether or not there is some sort of signal present.

The deal with equivalent sampling I wouldn't even dare to mention - sure, you can "cheat" like that, but in this context it just makes a poor product look even worse than it is, because it makes an impression that you are trying to artificially prop up the poor specs in your marketing materials with something that only confuses the unwary and is useless in practice on this type of scope.

BTW, that Picoscope you are citing has a 1GHz realtime sampling rate and is a very different category product.

[ataradov]

I think you are misunderstanding what the term "bandwidth" means. It is a characteristic of your input stage. It is exact same value for ETS and non-ETS system. It is not related to sampling at all.

You can sample all you want, but if your signal was filtered out by the input state at 10 MHz, then all you will sample is noise, no matter what the sampling frequency is.

So do the -3 dB measurement and tell us at what frequency it happens with just real-time sampling. I get a felling that we won't have to go higher than 50 MHz.

[miguelvp]

My Rigol DS2072 has a 2Gsps.

Diligent's Analog discovery about the same price as yours, has similar specs to what you offer, but they only claim 5MHz bandwidth since they have 2 channels.

Two channel oscilloscope (1M Ohm, ±25V, differential, 14 bit, 100Msample/sec, 5MHz bandwidth);
source:
http://www.digilentinc.com/Data/Products/ANALOG-DISCOVERY/Discovery_TRM_RevC_1.pdf

Can you show what a capture looks like when you put a 50MHz sample with say 5 Vpp? What is the dB drop?

Edit: Nevermind, I see from your indiegogo the following:

Bandwidth : 10Mhz (-3dB)

That's probably using a single channel, right?