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Offline WindowsG GamingTopic starter

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« on: March 31, 2017, 06:51:48 pm »
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~Snoopie 4-25-2023
« Last Edit: April 25, 2023, 04:08:05 am by WindowsG Gaming »
 

Offline rstofer

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Re: New Oscilloscope
« Reply #1 on: March 31, 2017, 07:52:45 pm »
Here's a better link:
http://www.ebay.com/itm/Hantek-6022BE-PC-Based-USB-Digital-Storag-Oscilloscope-48MSa-s-20MHz-2-Channels/281920511004

You can check out the Test Equipment forum here on eevBlog or just search for 6022.  There's info all over the place.
 

Offline james_s

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Re: New Oscilloscope
« Reply #2 on: March 31, 2017, 08:21:54 pm »
It would help if you mention what project you're trying to do. Generally speaking I don't like using PC based test equipment, it has never really lived up to the promise IMO. You can get older analog scopes for next to nothing and for many things they are just fine.
 

Offline FrankBuss

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Re: New Oscilloscope
« Reply #3 on: March 31, 2017, 09:31:51 pm »
P.S. I wanted to convert a regular RJ11 phone jack to a normal mic and speaker output for Various VOiP crap but i cant find an accurate pinout

You could do this already with your sound card.

But if you want to do more with electronics, like maybe programming an Arduino, a digital scope would be best, because you can debug things like SPI etc. much easier with it than with an analog scope. The cheap PC USB scope would work for this.
So Long, and Thanks for All the Fish
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Offline Gyro

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Re: New Oscilloscope
« Reply #4 on: March 31, 2017, 09:38:37 pm »
Thx m8  i found some info and i think i might buy it Thanks For Your help!!

Before you impulse buy the Hantek, you should at least read up on the alternative...

https://www.eevblog.com/forum/testgear/owon-vds1022i-quick-teardown-(versus-the-hantek-6022be)/

Homework is always important but particularly in this low price band.
« Last Edit: March 31, 2017, 09:47:38 pm by Gyro »
Best Regards, Chris
 

Offline james_s

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Re: New Oscilloscope
« Reply #5 on: March 31, 2017, 09:46:59 pm »
I've seen people give away older oscilloscopes for free, but it helps a lot to find one locally because shipping a big heavy instrument is not going to be cheap. $80 is cheap for a good scope though, many of those "crappy old" scopes cost as much as a brand new car when they were new and they still perform well. Oscilloscopes are not like computers and smartphones that get outdated rapidly, there are lots of 30+ year old scopes that perform as well or better than brand new gear that costs thousands. You can't buy a brand new scope for much less than $400 for a real oscilloscope that isn't just a toy. Expect to spend another $50 for a pair of reasonable low cost probes. Decent test equipment is expensive but it's an investment that will last decades properly cared for.
 

Offline james_s

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Re: New Oscilloscope
« Reply #6 on: April 01, 2017, 12:03:12 am »
You might still get one for peanuts. Like I said, I've seen numerous people give away old 20MHz analog scopes, if you post your location somebody might have something for you. You don't need anything fancy just starting out and learning to use it. You can always upgrade later if you decide you need something more advanced.
 

Offline danadak

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Re: New Oscilloscope
« Reply #7 on: April 01, 2017, 12:47:01 am »
For a very effective low cost logic analyzer (use Saleae free software download) -


https://www.saleae.com/downloads


http://www.ebay.com/itm/New-Set-USB-Logic-Analyzer-Device-USB-Cable-24MHz-8CH-24MHz-for-ARM-FPGA-/291457642276?hash=item43dc3aaf24:g:3D4AAOSwBahVTC~q


Sound card and function generator and spectrum analyzer scope (freeware) -


https://www.zeitnitz.eu/scope_en


http://www.zelscope.com/


Google "protect sound card inputs" for circuits to keep your
sound card from overload.




Regards, Dana.

« Last Edit: April 01, 2017, 12:51:02 am by danadak »
Love Cypress PSOC, ATTiny, Bit Slice, OpAmps, Oscilloscopes, and Analog Gurus like Pease, Miller, Widlar, Dobkin, obsessed with being an engineer
 

Offline daybyter

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Offline alsetalokin4017

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Re: New Oscilloscope
« Reply #9 on: April 01, 2017, 03:07:06 am »
The oscilloscope is really the "King of Test Equipment" and any (working) oscilloscope is better than no scope at all. Even though I 'm not really a fan of usb-computer-based scopes, the 60 dollar Hantek might not be such a bad deal for you. Especially since it does come with probes. Consider it to be a learning tool. Then save up for that Rigol z-box while you happily use the Hantek and get experience. Mow 20 lawns?
« Last Edit: April 01, 2017, 03:09:09 am by alsetalokin4017 »
The easiest person to fool is yourself. -- Richard Feynman
 

Offline alsetalokin4017

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Re: New Oscilloscope
« Reply #10 on: April 01, 2017, 04:19:55 am »
Quote
Contrary to some people's opinion, I don't think a PC scope is any inferior than a standalone scope.

It is if you have to go on the road and your laptop doesn't play well with your PC scope.

(I have a PC scope -- a Link DSO-2102M --- it works through a bidirectional parallel port interface and the software runs on Win98. Fortunately my ThinkPad 600e has the right stuff....)    :-DD
The easiest person to fool is yourself. -- Richard Feynman
 

Offline Brumby

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Re: New Oscilloscope
« Reply #11 on: April 01, 2017, 07:04:51 am »
Had a it of a look at the Hantek and poked around eBay ... and found this:

http://www.ebay.com.au/itm/Hantek-6022BE-PC-Based-USB-Digital-Storag-Oscilloscope-48MSa-s-20MHz-2-Channels-/252839378758?hash=item3ade66bf46:g:gYIAAOSwzhVWqIMy

For the price, you have to wonder - What did I just buy?

All the signs say "Beware" - new seller, not much feedback, private listings, crazy price, confusing range of products.... but for the money I thought it would be an interesting experiment.  If I really get uptight about my $16 AUD, I have PayPal to turn to.

I'm almost waiting for the excuses to start straight away - but there is always the possibility........



So - what do you reckon?  Will I get something and, if so, what will it be?
« Last Edit: April 01, 2017, 07:07:58 am by Brumby »
 

Offline Brumby

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Re: New Oscilloscope
« Reply #12 on: April 01, 2017, 12:50:34 pm »
 :-DD  Well, that was faster than I expected.  Item not available and seller NARU'd.

I can't say I'm surprised - except for the speed of it coming crashing down.
 

Offline ebastler

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Re: New Oscilloscope
« Reply #13 on: April 03, 2017, 08:30:38 am »
For a very effective low cost logic analyzer (use Saleae free software download) -

https://www.saleae.com/downloads
http://www.ebay.com/itm/New-Set-USB-Logic-Analyzer-Device-USB-Cable-24MHz-8CH-24MHz-for-ARM-FPGA-/291457642276?hash=item43dc3aaf24:g:3D4AAOSwBahVTC~q

Please do not use the Saleae software with this no-name knock-off analyzer. Salae's software is not "free, as in "free to use for whatever purpose"; it is only licensed for use with their own logic analyzer hardware. It's bad enough that people have pirated Saleae's original hardware design; we should not make it worse by using those knock-offs with Saleae's own software...

Saleae has since abandoned this basic design and moved to upgraded products, which include analog channels. Hence it might be OK to buy one of those Chinese hardware clones, which certainly does a nice job if 8 digital inputs at 25 MHz sampling rate are sufficient for your needs. Please use Sigrok software with it (https://sigrok.org/), which is truly free/open source.
 
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Offline abraxa

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Re: New Oscilloscope
« Reply #14 on: April 22, 2017, 09:49:21 pm »
Quote
It's bad enough that people have pirated Saleae's original hardware design

While I agree with you that Saleae software should only be used with a Saleae device, I'd like to comment on the "pirating" of their hardware design.

When looking at the schematics for the Cypress FX2 eval board [1], AN4053 of their set of FX2 application notes [2] and their supplied firmware example [3], it becomes clear as day that the initial Saleae hardware was really not much more than a slimmed-down reference design with basic protection (polyfuse, current limiting resistor on each logic channel). The firmware was also almost completely written by Cypress already, only had to have their proprietary Saleae control protocol added to it. The real brain power went into their GUI, which is definitely nice.

My point? There was no pirating of the hardware design because they didn't add anything non-trivial to the material that Cypress itself already provided. I'd say that's fair game to reproduce as any hardware engineer could've whipped up the circuit easily using the reference design. For their newer designs, this is not true anymore, however.

Just wanted to leave that here in case someone stumbles across this thread and thinks Chinese FX2 boards are cloned Saleae hardware.


[1] http://www.cypress.com/documentation/development-kitsboards/cy3684-ez-usb-fx2lp-development-kit
[2] http://www.cypress.com/file/139866/download
[3] http://www.cypress.com/documentation/code-examples/ez-usb-fx2lp-throughput-measurement
« Last Edit: April 22, 2017, 09:53:27 pm by abraxa »
 
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Offline ebclr

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Re: New Oscilloscope
« Reply #15 on: April 23, 2017, 01:58:59 am »
Use https://sigrok.org/ instead is better and open source
 

Offline ebclr

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Re: New Oscilloscope
« Reply #16 on: April 23, 2017, 02:25:53 am »
For what do you need the oscilloscope ?

In oscilloscope world, 60 USD is peanuts show you application, and we can help on the affordable solution
 

Offline GreyWoolfe

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Re: New Oscilloscope
« Reply #17 on: April 23, 2017, 06:32:04 pm »
If you want a scope and can pay a little more than the Hantek, look at the GW-Instek GDS-6112 100 MHz scope.  Link here http://www.ebay.com/itm/GW-INSTEK-Curser-Readout-Analog-Oscilloscope-GOS-6112-100MHz-Broken-Handle-/132159285511?hash=item1ec54ea907:g:mkcAAOSw44BYbShb.  These are from the ITT bankruptcy.  I just grabbed one and it works perfectly.  Better yet, it's a standalone. 
"Heaven has been described as the place that once you get there all the dogs you ever loved run up to greet you."
 


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