Author Topic: A new oscilloscope with wifi/lan/usb on indiegogo.com  (Read 21516 times)

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Offline Monkeh

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #50 on: June 05, 2015, 04:26:48 pm »
So you've created your own forum where you ask yourself questions instead of just answering here..

You have not a homepage yet?

I'm sorry? What does whether or not I have a website have to do with anything?
To tell other people a forum ,is there any wrong / mistake ?

You decided to create a forum and post there to answer questions asked here. The only reason I can see to do that is to control the discussion. Which normally means to censor anyone who isn't amazingly positive.
 

Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #51 on: June 05, 2015, 04:37:51 pm »
Wow. You are now just spamming us? Nice approach. This is a really fun thread. I'm sticking here just to observe how cultural differences can absolutely kill any product. And this one did not have much going for it in a first place.

PS: I see you also registered two different users to ask and answer questions. Do you think that people who buy test equipment are dumb?
« Last Edit: June 05, 2015, 04:39:53 pm by ataradov »
Alex
 

Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #52 on: June 05, 2015, 04:43:54 pm »
You already showed us that you can't have an open conversion. Monkeh is right, you want to control conversation, and that's just not going to happen.
Alex
 

Offline miguelvp

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #53 on: June 05, 2015, 04:58:45 pm »
50 Mhz with 100Msps? There is no way!

Also it's very overpriced since people can get this for way less:
http://www.digilentinc.com/Products/Detail.cfm?Prod=ANALOG-DISCOVERY

Video review from Dave:


 

Offline janoc

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #54 on: June 05, 2015, 08:35:25 pm »
http://www.html5scope.com/phpbb/viewforum.php?f=2

Sooo, I am supposed to go to an obscure forum to actually discover how to use the UI of your device. Nice touch! That will certainly sell like hot cakes |O

I suggest that you google terms like "UI discoverability" and "affordances". And also try to actually use a real scope first - engineers are used to a certain mental workflow when using test instruments. You can certainly label timebase "Knob" and make it look like a Breitling watch, it will work - at least in the technical sense.

However, it is not intuitive and it will be difficult and frustrating to use, especially for a control that is used very often. No scope has a combined timebase and input level control because those things are conceptually completely different. And it is certainly not labeled "Knob". That's like calling a control "Button" - that label is supposed to to be informative, not only a decoration to fill the empty space!



Even then you didn't really answer the questions, apart perhaps the meaning of the T buttons.

 

Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #55 on: June 05, 2015, 10:18:20 pm »
1.You are right : a button  labeled "Knob" is not fit  its function.Using this label is really for filling the empty space!   But which word is best ? or delete the button?
Why not make a drop down menu? Rotating knobs are easy to use in real life, not so much in virtual equipment.

2.if you run that app on PC,there is a item "knob mode select" in the menu " Tools|system opt ",you can try another knob mode.Maybe the "independent mode" more  fit PC big screen.
What do you mean "app on PC"? Is not it all HTML5 and should be the same on all platforms?
Alex
 

Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #56 on: June 05, 2015, 10:31:26 pm »
Please use proper quoting.

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

Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #57 on: June 06, 2015, 12:59:06 am »
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.
Alex
 

Online Bassman59

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #58 on: June 07, 2015, 11:17:48 pm »
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?
 

Offline free_electron

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #59 on: June 08, 2015, 12:13:21 am »
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
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Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #60 on: June 08, 2015, 03:14:43 am »
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.
Alex
 

Offline miguelvp

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #61 on: June 08, 2015, 05:32:48 am »
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.

 

Offline Rasz

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #62 on: June 29, 2015, 06:34:22 am »
Hilarious thread. Culture clash and language barrier at its best  :-DD

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  :popcorn:
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Offline TheAmmoniacal

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #63 on: June 29, 2015, 06:55:57 am »
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.
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Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #64 on: June 29, 2015, 06:57:59 am »
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.
Alex
 

Offline Stonent

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #65 on: June 29, 2015, 07:33:57 am »
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.
The larger the government, the smaller the citizen.
 

Offline janoc

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #66 on: June 29, 2015, 03:11:57 pm »
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.

 

Offline janoc

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #67 on: June 30, 2015, 05:30:46 pm »
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.
 

Online ataradov

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #68 on: June 30, 2015, 07:37:30 pm »
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.
« Last Edit: June 30, 2015, 07:40:34 pm by ataradov »
Alex
 

Offline miguelvp

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Re: A new oscilloscope with wifi/lan/usb on indiegogo.com
« Reply #69 on: June 30, 2015, 07:43:16 pm »
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:
Quote
Bandwidth : 10Mhz (-3dB)
That's probably using a single channel, right?
« Last Edit: June 30, 2015, 07:48:32 pm by miguelvp »
 


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