[chbot] Jaycar's QC1938 100MHz Digital Oscilloscope with 8M Memory Depth

[Mike Field]

(opps -replied directly to Charles, not to the list...)

TLDR: saying that a NZ$333 oscilloscope has poor protocol decoding vs a 
US$780+GST+freight logic analyzer says nothing. But saying it is worse 
than a $12 logic analyzer does.

Sigh, I should have guessed this would come up. As the saying goes, "No 
good deed goes unpunished"

Yes, these cheapies worked with that other software (maybe they still 
do?). I deliberately mentioned that they also work with Sigrok, 
https://sigrok.org

No, I am not telling anybody to use that other software. I didn't 
mention it. Sigrok works just fine. The Aliexpress link given does not 
mention that other software either.

Those other ones are far better products, with far more features and a 
big price tag (USD$479) that make it unrealistic for casual hobbyist 
use, even if you sweet-talk them into a hobbyist discount.

If anybody does want a multichannel logic analyzer you don't have to 
break into your Agilent dealer, I've got a "Digilent Digital Discovery" 
and high speed adapter board I've never used, and will take sensible 
offer (say $NZ 200). 32 channels @ 800MS/s

https://digilent.com/shop/digital-discovery-portable-usb-logic-analyzer-and-digital-pattern-generator/

This email written on an "IBM Compatible PC", but that doesn't mean I 
have been stealing from IBM.

Mike

On 13/09/2022 8:08 am, Charles Manning wrote:
> From the comments this is not a $12 really a logic analyser, but $12 
> device and using the STOLEN Salaea Logic software.
>
> If people are OK with stealing logic analysers then why not break into 
> the Agilent dealer and steal a $20k logic analyser?
>
> Stealing is stealing.
>
> But back to your point, these are way better than any scope-based 
> logic analysers. Just do the right thing and buy one, don't steal it:
> https://www.saleae.com/
>
>
>
> On Tue, Sep 13, 2022 at 7:53 AM Mike Field <hamster at snap.net.nz> wrote:
>
>     That would be those 8 channel, 24MHz USB ones that work with
>     Sigrok (and other software...). Cheap, nasty, but work upto a
>     couple of Mb/s. Things like:
>
>     https://m.aliexpress.com/item/1005004568431970.html
>     <https://m.aliexpress.com/item/1005004568431970.html?spm=a2g0n.productlist.0.0.4483RGfERGfEwA&browser_id=80653045995842c89e48fe2b61080ecc&aff_trace_key=db60184b841d49b78ae8881b2688f380-1663011701720-07121-UneMJZVf&aff_platform=msite&m_page_id=cnwtg813r4cazfsr183333ab3cd253424fea2455b9&gclid=&pdp_npi=2%40dis%21NZD%21882%218.82%21%21%213.95%21%21%40210318d116630118300464319e5622%2112000029657234509%21sea&curPageLogUid=9eR0z4BxzDfz&algo_pvid=553c34da-c9ba-4b72-9d13-33b69e9aa54a>
>
>     You also get more than 2 channels, so you can capture and decode
>     3-wire protocols.
>
>
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