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How to promote an USB oscilloscope to individual engineers? I am the Loto instru
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S. Petrukhin:

--- Quote from: jiangtao.lv on February 16, 2021, 03:18:12 am ---
--- Quote from: S. Petrukhin on February 15, 2021, 10:37:16 am ---
--- Quote from: jiangtao.lv on January 27, 2019, 03:09:49 am ---I'm a complete newcomer for overseas market.Any way of cooperation, I will seriously consider, such as writing promotional articles, acting as a sales agent, recommending it to other engineers,recommend retailers for me?

--- End quote ---

It looks nice!

But I only noticed the rising/falling edge trigger only. This is very poor, in digital measurements the trigger should be much more complicated.
For serious analog measurements, we don't see enough measurement resolution: the beam is very thin and clean - I don't think you managed to make such a quiet input, this is an indicator of low resolution, most likely.

As a result, you have some signal passing indicator. That's a lot on the market. What do you suggest is better?

Forgive the harshness, but the market is even more brutal.  :)

--- End quote ---

Sorry for my English too, you lost me .I don't get it.Do you mean the trigger needs more modes ?or do you suggest it need higher sampling rate when triggering?

--- End quote ---

At a minimum, the trigger should be more complex than just a rising/falling edge. See the description of serious oscilloscopes.  :)
wizard69:
Hello jiangtao.lv

Today is the first day I've heard of your products.   I'm in fact looking into some of your documentation as I type this.

Here are a some things that struck me right off the bat:

* You really need another place besides Facebook for USA support.   Many in this country refuse to have anything to do with Facebook due to their practices.   I'm not sure what would be the best avenue, but I will not be using Facebook.
* It would be nice to see Linux and MacOS support.
* I like that your home page {http://www.lotoins.com/} is light weight.   Home pages should download and display fast no matter the connection.   However it is pretty hard to find the technical details for your equipment.   As such each instrument listed on the home page should link to a page that covers the technical aspects of the device in question.  Right now I can't find enough detail to know how well any one instrument would work for me.   I realize resources are limited in a startup but you need more info for each instrument version or I simply missed the page that has the information.
* Thanks for being open about this product and its development.    Hopefully you can offer support to the open source communities and applications like Sigrok.   If nothing else SigRok runs on a lot of different OS's.
* Just an suggestion but there is a niche to fill for a USB O'scope that is fully isolated.    That means the USB connection and between inputs.
* I highly doubt I would use such hardware with a phone but with a table that would be a different story.   The best tablets on the market right now are made by Apple so seeing support for them might be nice.   On the other hand i'm not too happy with their Mifi program and policies so maybe not a good idea.   In any event iPad, with the USB-C ports offer a great place for high performance software.   Generally though I just carry around a laptop.
In any event some ideas.   I'm not in the market right at the moment I likely will not be a customer soon so I offer up the above ideas to help you get a perspective on what others think.

From what I can see these are more likely to be seen as and used as data acquisition devices rather than replacing a traditional O'scope.   That is OK as there is a huge market for such, however it would be nice to see a more complete scope offered up.    Complete in this sense means a front end that can handle much wider voltage ranges.
jiangtao.lv:

--- Quote from: wizard69 on February 17, 2021, 02:23:44 pm ---Hello jiangtao.lv

Today is the first day I've heard of your products.   I'm in fact looking into some of your documentation as I type this.

Here are a some things that struck me right off the bat:

* You really need another place besides Facebook for USA support.   Many in this country refuse to have anything to do with Facebook due to their practices.   I'm not sure what would be the best avenue, but I will not be using Facebook.
* It would be nice to see Linux and MacOS support.
* I like that your home page {http://www.lotoins.com/} is light weight.   Home pages should download and display fast no matter the connection.   However it is pretty hard to find the technical details for your equipment.   As such each instrument listed on the home page should link to a page that covers the technical aspects of the device in question.  Right now I can't find enough detail to know how well any one instrument would work for me.   I realize resources are limited in a startup but you need more info for each instrument version or I simply missed the page that has the information.
* Thanks for being open about this product and its development.    Hopefully you can offer support to the open source communities and applications like Sigrok.   If nothing else SigRok runs on a lot of different OS's.
* Just an suggestion but there is a niche to fill for a USB O'scope that is fully isolated.    That means the USB connection and between inputs.
* I highly doubt I would use such hardware with a phone but with a table that would be a different story.   The best tablets on the market right now are made by Apple so seeing support for them might be nice.   On the other hand i'm not too happy with their Mifi program and policies so maybe not a good idea.   In any event iPad, with the USB-C ports offer a great place for high performance software.   Generally though I just carry around a laptop.
In any event some ideas.   I'm not in the market right at the moment I likely will not be a customer soon so I offer up the above ideas to help you get a perspective on what others think.

From what I can see these are more likely to be seen as and used as data acquisition devices rather than replacing a traditional O'scope.   That is OK as there is a huge market for such, however it would be nice to see a more complete scope offered up.    Complete in this sense means a front end that can handle much wider voltage ranges.

--- End quote ---

These are very practical and useful suggestions. I will seriously understand and improve these aspects. thank you very much.
midix:
Wondering how OSCA02 and OSC2002 compare to Owon VDS1022I. Not by paper specs, but in real-world use, and when comparing only hardware properties and not the ones artificially boosted by a computer (having virtually unlimited memory).

(Prices with VAT in Europe).
Price-wise OSC2002 is about 125 EUR
OSCA02 and VDS1022I are both at about 100 EUR.
VDS1022 (non-I) is ~70 EUR.

Important: VDS1022I has USB isolation, which makes it more "fool-proof". OSCA02 / OSC2002 need a separate module for it, and it costs 40 EUR.

I see the old lotoins.com website is gone, the new address seems to be loto-ins.com. Not sure, why the branding was changed with that "-". The device images on AliExpress still show the old lotoins.com on them. And AliExpress Loto Instruments Store has more up-to-date product lists and images. loto-ins.com seems to be a bit abandoned in comparison.


I'm a hobbyist, working on occasional projects and repairs, and have no space to keep a proper bench scope on my table. Also, I have impaired vision, so an USB scope is a better choice for me because then I can zoom the image on the computer screen to make it easier for me to see.

A funny coincidence - jiangtao.lv ends with lv, which is a code for my country, Latvia :D
yoga:
not sure, but over one year without an update is not what I was expecting after starting to read the whole topic cause I was on the edge of buying an Owon vds1022i and had hopped to get more information from your brand and products.
The only further thing I found out is the support by hscope on the android app side which is important for me.

It was a coincidence that I looked at the date of your last post here on february 19th of 2021 while we had 22nd when I read the whole discussion.
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