PC Oscilloscope
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Posts: 46,084
For various projects with the stamp I find myself wishing for an oscilloscope.
At the moment, for example, I am
wishing I could get clear look at a stream of PWM pulses.
Have any of you looked into the PC oscilloscopes? Or maybe built one? The idea
is to avoid the major expense of
a commercial instrument.
At the moment, for example, I am
wishing I could get clear look at a stream of PWM pulses.
Have any of you looked into the PC oscilloscopes? Or maybe built one? The idea
is to avoid the major expense of
a commercial instrument.
Comments
best I have ever used, but very functional and better than nothing. The PC
scope boards and software I have seen are all around $200, so for a bit more
you get something more portable. One of those Osi-Tech pen scope things can
be hooked to a PC also, and they are about $70 or so.
Original Message
> For various projects with the stamp I find myself wishing for an
oscilloscope. At the moment, for example, I am
> wishing I could get clear look at a stream of PWM pulses.
>
> Have any of you looked into the PC oscilloscopes? Or maybe built one?
The idea is to avoid the major expense of
> a commercial instrument.
It is a dual channel, external triggerable scope. Doesn't work bad at all. I
had to twiddle all the pots
for a while to get them to operate normally (as they were a bit twitchy at
first. It was a good scope
that someone had, that sat on the shelf for a long time.
Circuit cellar was advertising a "pencil" type of O'scope for around $69.00
a while back. That looks
promising.
You could also use a Stamp with the PulseIn (or RCTime maybe) command and
convert the pulse to a simple data value or if your fancy a graphic to
display on a graphic LCD panel. You may need to measure both the high and
the low part of the PWM pulse, so you could get the duty cycle.
A storage O'scope is possible, but you'd have to use a ADC chip and clock
and store the output on a regular basis (say thousands of samples per
second) into a RAM chip, and then process the sample readings into a graphic
display. But you may not be able to do this with a Stamp, as a I2C or 1Wire
interface may be too slow.
There used to be a few PC parallel port based O'scopes, but they had flaky
software, very low resolution, and low frequency range. They all seem to
have gone outn of business. But the expensive PC ones, that worked, are
still out there.
Original Message
From: Michael Gianturco [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=YlFbDSIzqnTyPxNly_C9iWPijlq_iSNgK0tqE41V1-Dm45PbEU9mly7PDVIsYWNR_xrM2zN5ZI5tjrhn]michcg@m...[/url
Sent: Thursday, January 24, 2002 6:08 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] PC Oscilloscope
For various projects with the stamp I find myself wishing for an
oscilloscope. At the moment, for example, I am
wishing I could get clear look at a stream of PWM pulses.
Have any of you looked into the PC oscilloscopes? Or maybe built one? The
idea is to avoid the major expense of
a commercial instrument.
To UNSUBSCRIBE, just send mail to:
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http://www.velleman.be/Product.asp?lan=1&id=338488
Hank
Original Message
> Has anyone tried the Vellemen scope?
>
> http://www.velleman.be/Product.asp?lan=1&id=338488
Hank
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, January 24, 2002 11:49 PM
Subject: Re: [noparse][[/noparse]basicstamps] PC Oscilloscope
> So how much does it cost?
>
>
Original Message
>
> > Has anyone tried the Vellemen scope?
> >
> > http://www.velleman.be/Product.asp?lan=1&id=338488
scope, anything is better than nothing. However, if you had to have one
scope, you'd be better off having an analog scope (like a Tek 455 or 456
which you can get for less than this scope costs on ebay). However, if
you already have an analog scope and you can't afford a real digital
storage scope, this is a good bargain. It isn't as good as a real scope.
No external triggering, for example. Also the transient recorder is not
very useful because it uses a slow PC-based time base. However, the
basic storage functions work very well and if you are a ham the spectrum
analyzer is nice.
Even though I have excellent analog and digital scopes, I have one of
these so I can take "screen shots" of scope traces for articles. Look at
http://www.al-williams.com/awce/pakif.htm for some examples.
Al Williams
AWC
* Floating point math for the Stamp, PIC, SX, or any microcontroller
http://www.al-williams.com/awce/pak1.htm
>
Original Message
> From: Hank Hagquist [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=HVl6qOhCFrf585_tlwSZ5uGIbc45tqhNqfPa3wXbrahomkx2iQokEgt0k3cCAMgV3GJ07lDYnRyZSMrxfkw]hankster@h...[/url
> Sent: Thursday, January 24, 2002 10:16 PM
> To: basicstamps@yahoogroups.com
> Subject: Re: [noparse][[/noparse]basicstamps] PC Oscilloscope
>
>
> Has anyone tried the Vellemen scope?
>
> http://www.velleman.be/Product.asp?lan=1&id=338488
>
> Hank
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
> Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
Search Internet for:
"Oscilloscope for Windows v. 2.51"
The source file is osc251.zip 89KB.
It is a FREE program, written by a russian student, very well done.
Oscilloscope for Windows uses the sound card as an analog-to-digital
converter, providing complete oscilloscope and spectrum analyzer
functionality in Windows95 environment.
It works for me on Windows ME with a Soundblaster 16 card.
Regards
ECO
Original Message
From: "Michael Gianturco" <michcg@m...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, January 25, 2002 1:08 AM
Subject: [noparse][[/noparse]basicstamps] PC Oscilloscope
> For various projects with the stamp I find myself wishing for an oscilloscope.
At the moment, for example, I am
> wishing I could get clear look at a stream of PWM pulses.
I've been thinking about getting one of the ADC-212/3 products
(http://www.picotech.com/212_6.html) but would like other suggestions based
on good experience.
BTW - I'm in the UK.
Regards,
Justin.
>
Original Message
> From: Michael Gianturco [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=BmC_W3bMfzf6A_0d8WuCVO1GYUzJTz83Pyg-IcMxLyHn4fc_LrcvBPnXMveJCkYQ4IBysQoF_nt7scsR]michcg@m...[/url
> Sent: 25 January 2002 00:08
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] PC Oscilloscope
>
>
> For various projects with the stamp I find myself wishing for
> an oscilloscope. At the moment, for example, I am
> wishing I could get clear look at a stream of PWM pulses.
>
> Have any of you looked into the PC oscilloscopes? Or maybe
> built one? The idea is to avoid the major expense of
> a commercial instrument.
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
> Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
<http://groups.yahoo.com/group/basicstamps/files/Winscope/>. I have not
used this so I cannot comment about it.
--
Greg
ECO wrote:
>Michael
>
>Search Internet for:
>"Oscilloscope for Windows v. 2.51"
>The source file is osc251.zip 89KB.
>It is a FREE program, written by a russian student, very well done.
>
>Oscilloscope for Windows uses the sound card as an analog-to-digital
>converter, providing complete oscilloscope and spectrum analyzer
>functionality in Windows95 environment.
>It works for me on Windows ME with a Soundblaster 16 card.
>
>Regards
>ECO
>
>
Original Message
>From: "Michael Gianturco" <michcg@m...>
>To: <basicstamps@yahoogroups.com>
>Sent: Friday, January 25, 2002 1:08 AM
>Subject: [noparse][[/noparse]basicstamps] PC Oscilloscope
>
>
> > For various projects with the stamp I find myself wishing for an
> oscilloscope. At the moment, for example, I am
> > wishing I could get clear look at a stream of PWM pulses.
scope for everything.
My first scope was a homebrew circuit that drove the yoke coils of an old
black and white TV.
Then I picked up a Tektronix 422 at a hamfest, tube type and if you want to
use it today you must turn it on yesterday to allow it to warm up and
stabilize.
Now I use a Tektronix, 465 , cost me $150.00 used but fully functional and
calibrated.
There is this little old Jewish man who used to work for Tektronix and now
goes from hamfest to hamfest, he is honest, willing to haggle on prices, and
has the skills and equipment to refurbish. and calibrate used scopes.
KF4HAZ Lonnie
Original Message
From: "Michael Gianturco" <michcg@
> For various projects with the stamp I find myself wishing for an
oscilloscope. At the moment, for example, I am
> wishing I could get clear look at a stream of PWM pulses.
>
> Have any of you looked into the PC oscilloscopes? Or maybe built one?
The idea is to avoid the major expense of
> a commercial instrument.
http://www.stud.fh-hannover.de/~heineman/freeware.htm
regards,
Leroy
ECO wrote:
>
> Michael
>
> Search Internet for:
> "Oscilloscope for Windows v. 2.51"
> The source file is osc251.zip 89KB.
> It is a FREE program, written by a russian student, very well done.
>
> Oscilloscope for Windows uses the sound card as an analog-to-digital
> converter, providing complete oscilloscope and spectrum analyzer
> functionality in Windows95 environment.
> It works for me on Windows ME with a Soundblaster 16 card.
>
> Regards
> ECO
>
>
Original Message
> From: "Michael Gianturco" <michcg@m...>
> To: <basicstamps@yahoogroups.com>
> Sent: Friday, January 25, 2002 1:08 AM
> Subject: [noparse][[/noparse]basicstamps] PC Oscilloscope
>
> > For various projects with the stamp I find myself wishing for an
oscilloscope. At the moment, for example, I am
> > wishing I could get clear look at a stream of PWM pulses.
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and Body
of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
> For various projects with the stamp I find myself wishing for an
oscilloscope. At the moment, for example, I am
> wishing I could get clear look at a stream of PWM pulses.
>
> Have any of you looked into the PC oscilloscopes? Or maybe built
one? The idea is to avoid the major expense of
> a commercial instrument.
Michael, for a few $$, you cannot get very much in the way of
performance, unless you are lucky enough to find a good used scope
for a good price. However, for embedded controller stuff, like PWM
monitoring, looking at analog signals, and most other measurements on
the relevant timeframe, you don't need phenomenal performance either.
A simple/cheap solution might be ok - although it might not set the
world on fire:
http://www.oricomtech.com/wst100.htm
- dan
===================
They sell the Pico as well as an in-house design
call O-Scope. Prices are available on web site.
regards,
Dennis
Steve
Original Message
From: "oric_dan" <dan@o...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, January 25, 2002 9:32 AM
Subject: [noparse][[/noparse]basicstamps] Re: PC Oscilloscope
> --- In basicstamps@y..., Michael Gianturco <michcg@m...> wrote:
> > For various projects with the stamp I find myself wishing for an
> oscilloscope. At the moment, for example, I am
> > wishing I could get clear look at a stream of PWM pulses.
> >
> > Have any of you looked into the PC oscilloscopes? Or maybe built
> one? The idea is to avoid the major expense of
> > a commercial instrument.
>
>
> Michael, for a few $$, you cannot get very much in the way of
> performance, unless you are lucky enough to find a good used scope
> for a good price. However, for embedded controller stuff, like PWM
> monitoring, looking at analog signals, and most other measurements on
> the relevant timeframe, you don't need phenomenal performance either.
> A simple/cheap solution might be ok - although it might not set the
> world on fire:
>
> http://www.oricomtech.com/wst100.htm
>
> - dan
> ===================
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
it and I find that it does everything I need it to do. Right now, I've got
an old Dell laptop with a 32MB CF card as the hard drive, running their
software in dos specifically for this o-scope.
Barry
www.barrymichels.com/ide
> Date: Thu, 24 Jan 2002 23:16:09 -0500
> From: "Hank Hagquist" <hankster@h...>
> Subject: Re: PC Oscilloscope
>
> Has anyone tried the Vellemen scope?
>
> http://www.velleman.be/Product.asp?lan=1&id=338488
>
> Hank
There is an article from
CircuitCellar that show us how
to build an oscilloscope based
on MPC555 evaluation board.Source
code is included in it.
If you are interested, I can send
you the information personally.
Sze Keat
--- Michael Gianturco <michcg@m...>¤µ¤ó¤Ï½ñ¤*
¤Þ¤·¤¿¡§
> For various projects with the stamp I find myself
> wishing for an oscilloscope. At the moment, for
> example, I am
> wishing I could get clear look at a stream of PWM
> pulses.
>
> Have any of you looked into the PC oscilloscopes?
> Or maybe built one? The idea is to avoid the major
> expense of
> a commercial instrument.
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed.
> Text in the Subject and Body of the message will be
> ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
__________________________________________________
Do You Yahoo!?
Yahoo! BB is Broadband by Yahoo!
http://bb.yahoo.co.jp/
I'm using PicoScope software with their ADC100. Very good, comprehensive
and easy to use. The 200 range should cover higher frequencies.
Regards,
Dov
Original Message
From: "Justin" <justin@j...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, January 25, 2002 2:30 PM
Subject: RE: [noparse][[/noparse]basicstamps] PC Oscilloscope
> I'm curious about these too. Has anyone had tried any of the Pico range ?
> I've been thinking about getting one of the ADC-212/3 products
> (http://www.picotech.com/212_6.html) but would like other suggestions
based
> on good experience.
>
> BTW - I'm in the UK.
>
> Regards,
> Justin.
>
>
>
> >
Original Message
> > From: Michael Gianturco [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=F2GSswCjjb1pgfjAEt-Dm2M7f6AVGYZTo4CVzSBXk7wFDCPbtIO8N33f4XstL4kVIHhDmq1kLBjJ7vU]michcg@m...[/url
> > Sent: 25 January 2002 00:08
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] PC Oscilloscope
> >
> >
> > For various projects with the stamp I find myself wishing for
> > an oscilloscope. At the moment, for example, I am
> > wishing I could get clear look at a stream of PWM pulses.
> >
> > Have any of you looked into the PC oscilloscopes? Or maybe
> > built one? The idea is to avoid the major expense of
> > a commercial instrument.
> >
> >
> >
> >
> > To UNSUBSCRIBE, just send mail to:
> > basicstamps-unsubscribe@yahoogroups.com
> > from the same email address that you subscribed. Text in the
> > Subject and Body of the message will be ignored.
> >
> >
> > Your use of Yahoo! Groups is subject to
> > http://docs.yahoo.com/info/terms/
> >
> >
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>