Hobbylab Arduino lab Logic Analyzer

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Eric Berger

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Oct 19, 2012, 10:15:41 AM10/19/12
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Anyone familiar with this item?  http://www.adafruit.com/blog/2012/08/22/arduino-lab-by-hobbylab/

Has anyone ever seen or used one, and if so would it be a good, cheap LA for a rookie circuit bender to play with or a waste of $40?  Also, (rookie question)is it an appropriate question to ask if there’s a minimum type of Arduino required, or is one as good as another?  I’d like to use it to mess around with some small breadboard circuit experimenting.  Don’t think it comes with absolutely anything except the shield itself; no connectors, etc., nothing.

 

Thanks,

Eric

 

p.s. – thanks again for the interesting Arduino class last weekend – was fun.

Bill French

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Oct 20, 2012, 10:02:28 AM10/20/12
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I've never seen that, but it's actually pretty cool!  One draw back is that it's fairly specific to using it with the arduino ... I don't know that I'd want that to be someone's first analyzer.

Too bad they didn't add some headers so you could hook up probes and use it standalone for any kind of circuit:



Also, Dangerous Prototypes has a nice logic analyzer: http://www.seeedstudio.com/depot/open-workbench-logic-sniffer-p-612.html?cPath=174

Eric Berger

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Oct 20, 2012, 5:12:47 PM10/20/12
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Bill,

 

Wow, I just read your replay and I think I’m really glad I asked.  So, the Arduino lab works ONLY with an Arduino then, only telling me the status of the pins of the attached Arduino?  That is definitely not what I thought it was for.  I figured on getting a cheap logic analyzer and hooking it up to some basic 555 timer chip experiments, for example, just to learn and watch the pins go high and low on those basic chips and others.  The cheapest alternative after that is a $700+ rigol ds1000 series with la built in.  So, you think that the Dangerous Prototype board with a couple or the probe cables is more what I’m looking for?  Otherwise $700+ is a bit expensive for a toy.  Ever work with the Dangerous Proto board or other, cheaper, alternatives?  I just ordered something else from Seeed Studios and let me tell you, they are NOT the fastest shippers J

 

-e

 

Eric


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c f

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Oct 20, 2012, 5:18:57 PM10/20/12
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I don't think it is an arduino-specific logic analyzer (I'm not even sure how that would be possible), it is just in the form-factor of an arduino shield. It acts as a pass-through board that can plug in between an arduino and another shield, and lets you spy on all of the signals. If you plug wires from a breadboard into the female headers, it looks like you can use it to spy on whatever you would like (speed/bandwidth/voltage limits apply, of course).

Robert Cohen

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Oct 20, 2012, 6:49:21 PM10/20/12
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How about this:


Seems to be what you'd be looking for.

Rob

Bill French

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Oct 21, 2012, 9:37:47 AM10/21/12
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Yeah, just to be clear, i would guess it would work "stand alone" but it's really designed to fit on an arduino and sniff those signals.  The xprotolab device looks cool.

Lots of folks have and like the Saleae analyzers:  http://www.saleae.com/logic16?gclid=CI2t2L-ckrMCFe1xOgodj2wAwg

They are more expensive but quite luxurious.


On Friday, October 19, 2012 10:14:49 AM UTC-4, Eric B. wrote:

Michael Shiloh

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Oct 21, 2012, 10:23:01 AM10/21/12
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You know, if you just want to play and learn with one, I'll bet you
could do something straight with Arduino. If you're analyzing something
like a 555 circuit at audio frequencies this might be sufficient.

Couple that with Processing and add a couple of traces to the graph
example and you're almost done

On 10/21/2012 06:37 AM, Bill French wrote:
> Yeah, just to be clear, i would guess it would work "stand alone" but it's
> really designed to fit on an arduino and sniff those signals. The
> xprotolab device looks cool.
>
> Lots of folks have and like the Saleae analyzers:
> http://www.saleae.com/logic16?gclid=CI2t2L-ckrMCFe1xOgodj2wAwg
>
> They are more expensive but quite luxurious.
>
> On Friday, October 19, 2012 10:14:49 AM UTC-4, Eric B. wrote:
>>
>> Anyone familiar with this item?
>> http://www.adafruit.com/blog/2012/08/22/arduino-lab-by-hobbylab/
>>
>> Has anyone ever seen or used one, and if so would it be a good, cheap LA
>> for a rookie circuit bender to play with or a waste of $40? Also, (rookie
>> question)is it an appropriate question to ask if there�s a minimum type of
>> Arduino required, or is one as good as another? I�d like to use it to mess
>> around with some small breadboard circuit experimenting. Don�t think it
>> comes with absolutely anything except the shield itself; no connectors,
>> etc., nothing.
>>
>>
>>
>> Thanks,
>>
>> Eric
>>
>>
>>
>> p.s. � thanks again for the interesting Arduino class last weekend � was
>> fun.
>>
>

Dan Lavin

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Oct 22, 2012, 7:53:09 PM10/22/12
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The Arduino hobbylab device looks very much like the sadly discontinued
BS2 logic analyzer I got years ago. It was intended to work only with
the Basic Stamp but, was based on the USBEE chip. Once powered, it could
read any input line without the presence of the BS2, so I set it up as a
standalone device and use it that way.

I found have found my BS2 logic analyzer a useful tool, especially for
decoding serial streams, which you can't do on a scope (or at least one
I can afford).

The manual for the hobbylab device suggests a decent tool, but I suggest
downloading and installing the software to check whether it meets your
needs.

Incidentally, I picked up an Xpropotolab device to use without a
computer, but have not put it to work yet. Its input voltage maximum is
3.3, or 5 with user supplied voltage dividers.

If you don't have a access to a scope, or if you plan to work with
serial data, I would get the hobbylab device.

Nick Geller

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Oct 25, 2012, 5:54:29 PM10/25/12
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After reading this thread and doing a bit of research. I found another model that's more expensive ($149) but seems to offer 2 things which i didn't like about the other options:

1. better sampling rate 
2. a mac os ide ( the first product has windows only ide version and the other [i derived this from comments] a jvm bloat-ware (tee-hee). 

So this is what I would get:

On Mon, Oct 22, 2012 at 7:53 PM, Dan Lavin <dan...@verizon.net> wrote:
The Arduino hobbylab device looks very much like the sadly discontinued BS2 logic analyzer I got years ago.  It was intended to work only with the Basic Stamp but, was based on the USBEE chip. Once powered, it could read any input line without the presence of the BS2, so I set it up as a standalone device and use it that way.

I found have found my BS2 logic analyzer a useful tool, especially for decoding serial streams, which you can't do on a scope (or at least one I can afford).

The manual for the hobbylab device suggests a decent tool, but I suggest downloading and installing the software to check whether it meets your needs.

Incidentally, I picked up an Xpropotolab device to use without a computer, but have not put it to work yet.  Its input voltage maximum is 3.3, or 5 with user supplied voltage dividers.

If you don't have a access to a scope, or if you plan to work with serial data, I would get the hobbylab device.







On 10/21/2012 10:23 AM, Michael Shiloh wrote:
You know, if you just want to play and learn with one, I'll bet you could do something straight with Arduino. If you're analyzing something like a 555 circuit at audio frequencies this might be sufficient.

Couple that with Processing and add a couple of traces to the graph example and you're almost done

On 10/21/2012 06:37 AM, Bill French wrote:
Yeah, just to be clear, i would guess it would work "stand alone" but it's
really designed to fit on an arduino and sniff those signals. The
xprotolab device looks cool.

Lots of folks have and like the Saleae analyzers:
  http://www.saleae.com/logic16?gclid=CI2t2L-ckrMCFe1xOgodj2wAwg

They are more expensive but quite luxurious.

On Friday, October 19, 2012 10:14:49 AM UTC-4, Eric B. wrote:

Anyone familiar with this item?
http://www.adafruit.com/blog/2012/08/22/arduino-lab-by-hobbylab/

Has anyone ever seen or used one, and if so would it be a good, cheap LA
for a rookie circuit bender to play with or a waste of $40? Also, (rookie
question)is it an appropriate question to ask if there’s a minimum type of
Arduino required, or is one as good as another?  I’d like to use it to mess
around with some small breadboard circuit experimenting. Don’t think it

comes with absolutely anything except the shield itself; no connectors,
etc., nothing.



Thanks,

Eric



p.s. – thanks again for the interesting Arduino class last weekend – was
fun.


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Ian Harris

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Oct 25, 2012, 8:06:44 PM10/25/12
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I use that one. One of the absolute best purchases I have ever made and wish I'd done it years ago. 
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Eric Berger

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Oct 26, 2012, 8:15:35 AM10/26/12
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Yea, the Salea looks sweet.  I’ll have to decide whether or not the Salea is worth the price for me as an experimental  plaything (toy J ) for now, or order the cheaper device from Seeed, but wait a month + for it to arrive L . . .

 

-e

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Dan Lavin

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Oct 26, 2012, 8:35:54 AM10/26/12
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Here's another possibility; it provides scope capability as well as a logic analyzer.
http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,842,1018&Prod=ANALOG-DISCOVERY

Paul Strohmeier

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Oct 26, 2012, 8:49:21 AM10/26/12
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have not looked at the exact specs, but maybe this is interesting? :

paul strohmeier

check out my kickstarter campagin! --> http://tinyurl.com/mediated-touch 

           [web] paulstrohmeier.info

raphael

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Oct 26, 2012, 3:03:43 PM10/26/12
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In my experience, software trumps hardware with these things. The Saleae
unit has really nice, intuitive lovely software. It moves quick and
makes reasonable sense. Also, it's on all three major OS flavors.

SUMP makes me want to slit my wrists.


On 10/26/12 8:35 AM, Dan Lavin wrote:
> Here's another possibility; it provides scope capability as well as a
> logic analyzer.
>> http://www.digilentinc.com/Products/Detail.cfm?NavPath=2,842,1018&Prod=ANALOG-DISCOVERY
>
> On 10/26/2012 8:15 AM, Eric Berger wrote:
>>
>> Yea, the Salea looks sweet. I�ll have to decide whether or not the
>> Salea is worth the price for me as an experimental plaything (toy J)
>> for now, or order the cheaper device from Seeed, but wait a month +
>> for it to arrive L. . .
>>
>> -e
>>
>> *From:*nycresistormi...@googlegroups.com
>> [mailto:nycresistormi...@googlegroups.com] *On Behalf Of
>> *Nick Geller
>> *Sent:* Thursday, October 25, 2012 5:54 PM
>> *To:* nycresistormi...@googlegroups.com
>> *Subject:* Re: [NYCR:Microcontrollers] Re: Hobbylab Arduino lab Logic
>> question)is it an appropriate question to ask if there�s a minimum type of
>> Arduino required, or is one as good as another? I�d like to use it to
>> mess
>> around with some small breadboard circuit experimenting. Don�t think it
>> comes with absolutely anything except the shield itself; no connectors,
>> etc., nothing.
>>
>>
>>
>> Thanks,
>>
>> Eric
>>
>>
>>
>> p.s. � thanks again for the interesting Arduino class last weekend � was
>> fun.
>>
>>
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