Oscilloscope purchase

[Arto Bendiken]

Mike and I are eyeing this [1, 2] affordable (< $100) open-source
oscilloscope for the next hackathon. The motivation being our
frustrated attempts, at the previous hackathon, to debug produced PWM
signals.

Figured I'd mention it on the list since Alexander is also planning
near-term hardware purchases, and it might be quite helpful to have
two scopes, one in Berlin and one in Bratislava--assuming the device
works adequately, of course.

Alexander, how does this scope look to you? Does it have all features
you'd need?

[1] http://www.seeedstudio.com/wiki/DSO_Nano_v3
[2] http://www.rlx.sk/en/handheld-oscilloscope/1882-dso-nano-v3-seeed-tol01241p-pocket-size-compatible-32bit-digital-storage-oscilloscope.html

--
Arto Bendiken | @bendiken | http://ar.to

[Mike Gogulski]

FYI I probably have until Monday morning to back out of the purchase, if
needed.

[Arto Bendiken]

On Sat, Nov 14, 2015 at 4:06 PM, Mike Gogulski <mi...@gogulski.com> wrote:
> FYI I probably have until Monday morning to back out of the purchase, if
> needed.

Mentioned this to Smuggler today, and turns out he actually has the
DSO Nano V2 and likes it fine. So it's probably a pretty good
purchase.

Also, I'd forgotten that I have a Bus Pirate [1, 2] collecting dust on
a shelf somewhere. It can be used for basic logic analysis. However,
it's got a much lower-level, more ad-hoc, and less polished UX than
the DSO Nano, and can't do anything beyond low speeds (1 kHz), so
doesn't necessarily help much for PWM analysis.

[1] http://dangerousprototypes.com/docs/Bus_Pirate
[2] https://en.wikipedia.org/wiki/Bus_Pirate

[Mike Gogulski]

Oh, that's great to know!

Here's where I suggest adding your Bus Pirate to your standard kit when
you come for hack weekends :) Who knows when it will be useful? I think
I have a USB-RS232 converter somewhere that has independent female
jumpers on the RS232 side, but your thing supports way, way more.

[Alexander Biersack]

What is the price on the DSO Nano V2?

Is it 4 chan 72MHz? Somehow this does not really match up, higher prices Oscis have 1GS/s and 60MHz, while this thing claims to do 72MHz with 72MS/s? If I apply the same factor as I find with high end products, 72MS/s would yield something like 10MHz realistically.

Price on ebay/amazon in DE is about 140€, what do you have?

Did the software you can use it with make a difference for your decision?

Would it make sense to have one in Berlin and on with Mike? Does it make sense to have the same twice?

I have a friend who lend me his ancient tektronix, but of course this did not hook up to a PC. I could probably borrow it again for a while. Does that make any sense? It' really bulky and heavy though.

a

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[Mike Gogulski]

Alex: I'd say borrow the Tektronix if you need it, but keep it in
Berlin. Traveling here with it would be madness. Not hooking up to a PC
makes no real difference to me, at least not at the level we're thinking
about using a scope.

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