Re: [PDXHS] Recommendations on USB O-scope

[Aaron Eiche]

Are you specifically looking for a used one? I bought a Owon scope from Saelig.com for ~$400 last year and it's a great little scope. I can't tell you much about scopes, but for most things you don't really need much. Adafruit (and many others) sell Rigol scopes for around that price too, and they're solid machines. These aren't super scopes, but for most stuff they fit the bill (where the bill is not $8k-$10k)

On Tue, Apr 16, 2013 at 10:27 AM, sysfail dobc <sysfai...@gmail.com> wrote:

Few of us started a maker's space/private club in inner SE, sort of like a moose lodge for tinkerers and bike punks. 

Though less on computers tech and more into fixing bikes, welding bikes, pedal power generators, sewing, pinball machines, and etc.

We started building up an electronic workbench and I'd really like to get a USB O-scope, mostly for working with motors and controllers.  Though sure others will use it for other things.

Budget around $300-400, could go higher if we have too.

Thanks,

Sysfail

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[Ben Porter]

In my experience, USB o-scopes are good for logic level stuff and lower voltage (< 15v), low frequency (~100khz) analog measurements.  If you're doing things with power electronics, I'd definitely recommend a real oscilloscope: the measurements will be more responsive and accurate.  I'd try to find something rated at least 100Mhz and as many channels as possible: but your price range will probably limit you to 2 channels.

Also, keep an eye on craigslist and the PSU used site: http://www.fap.pdx.edu/surplus/item_list.php?mode=current

[Ke Feng]

I've used a few USB scopes and I have to say that PicoScope is what I like most. Here's one for educational use, $275

http://www.alliedelec.com/search/productdetail.aspx?sku=70050577&gclid=CIu36Yztz7YCFaF7QgodODoAmw

For motor stuff, I would try using sound card and software. You don't have to spend a penny if you can find a few connectors and resistors. A lot of articles are there if you google, like this one:

http://www.ledametrix.com/oscope/

There's no DC coupling but its free to get you started.

    ~ Ke Feng

[The Real Plato]

---------- Forwarded message ----------
From: Matthew Hines <spamfree...@gmail.com>
Date: Tue, Apr 16, 2013 at 2:32 PM
Subject: Re: Fwd: [PDXHS] Recommendations on USB O-scope
To: The Real Plato <the.rea...@gmail.com>


DSO Nano with BenF's latest firmware is a nice single-channel scope up
to 100kHz. Also offers voltage and frequency statistics normally found
on multimeters. Useful for almost anything that can be put on a
breadboard.

Where that is insufficient, the following is probably effective.
Haven't used it myself, but looks promising.
https://www.sparkfun.com/products/9263


On 04/16/2013 05:39 PM, The Real Plato wrote:

Hey, I remember you had a nice pocket sized oscilloscope, do you think
it would be suitable for these guys?
-plato

[Nathan McCorkle]

If you ever simply need a logic analyzer, this is the best deal I've come across, design in the USA too (not sure where it's made)

http://www.pctestinstruments.com/

On Tue, Apr 16, 2013 at 10:27 AM, sysfail dobc <sysfai...@gmail.com> wrote:

Few of us started a maker's space/private club in inner SE, sort of like a moose lodge for tinkerers and bike punks. 

Though less on computers tech and more into fixing bikes, welding bikes, pedal power generators, sewing, pinball machines, and etc.

We started building up an electronic workbench and I'd really like to get a USB O-scope, mostly for working with motors and controllers.  Though sure others will use it for other things.

Budget around $300-400, could go higher if we have too.

Thanks,

Sysfail

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-Nathan