Cheap oscilloscope kit

P

Peabody

Guest
I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K) that I
got from Banggood for $24 plus a power supply. These are single-channel,
low-frequency scopes, but would be useful for things one might do with an
Arduino or similar microcontroller, such as stepper motors and servos, plus
of course general audio stuff. The bandwidth spec is 200 kHz, but I suspect
the display would be pretty distorted at that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it could be
used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of course
they do suffer in comparison to a new $400 digital scope, or even a used
analog scope, but most people this side of an EE degree just don't need such
a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.
 
On Fri, 24 Feb 2017 17:42:13 -0600, Peabody wrote:

I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K)
that I got from Banggood for $24 plus a power supply. These are
single-channel, low-frequency scopes, but would be useful for things one
might do with an Arduino or similar microcontroller, such as stepper
motors and servos, plus of course general audio stuff. The bandwidth
spec is 200 kHz, but I suspect the display would be pretty distorted at
that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it
could be used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of
course they do suffer in comparison to a new $400 digital scope, or even
a used analog scope, but most people this side of an EE degree just
don't need such a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.
Click to expand...

Any scope is way better than no scope. Single channel, 200kHz is
definitely $25 worth if it's that or no scope.

Any two-channel scope with XYZ capabilities is more than twice better
than a single-channel scope with XYZ capabilities.

More channels are even better yet, but two channels plus an external
trigger gets very useful.

And yes, four analog channels, 1GHz bandidth, yadda yadda, is better than
that, even -- but while there may be a 2 and a 5 involved in the price,
there'll be a whole lot of zeros, too.

--
www.wescottdesign.com
 
On Sat, 25 Feb 2017 20:00:46 -0600, Tim Wescott
<tim@seemywebsite.really> wrote:

On Fri, 24 Feb 2017 17:42:13 -0600, Peabody wrote:

I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K)
that I got from Banggood for $24 plus a power supply. These are
single-channel, low-frequency scopes, but would be useful for things one
might do with an Arduino or similar microcontroller, such as stepper
motors and servos, plus of course general audio stuff. The bandwidth
spec is 200 kHz, but I suspect the display would be pretty distorted at
that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it
could be used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of
course they do suffer in comparison to a new $400 digital scope, or even
a used analog scope, but most people this side of an EE degree just
don't need such a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.

Any scope is way better than no scope. Single channel, 200kHz is
definitely $25 worth if it's that or no scope.

Any two-channel scope with XYZ capabilities is more than twice better
than a single-channel scope with XYZ capabilities.

More channels are even better yet, but two channels plus an external
trigger gets very useful.

And yes, four analog channels, 1GHz bandidth, yadda yadda, is better than
that, even -- but while there may be a 2 and a 5 involved in the price,
there'll be a whole lot of zeros, too.
Click to expand...

And March is scope month at Keysight ;)
Free scopes are even better, except for the taxes.

Cheers
 
On Fri, 24 Feb 2017 17:42:13 -0600, Peabody
<waybackNO584SPAM44@yahoo.com> wrote:

I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K) that I
got from Banggood for $24 plus a power supply. These are single-channel,
low-frequency scopes, but would be useful for things one might do with an
Arduino or similar microcontroller, such as stepper motors and servos, plus
of course general audio stuff. The bandwidth spec is 200 kHz, but I suspect
the display would be pretty distorted at that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it could be
used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of course
they do suffer in comparison to a new $400 digital scope, or even a used
analog scope, but most people this side of an EE degree just don't need such
a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.
Click to expand...
I do not agree.
Any tool should be fit for the task.
This toy isn't.

24$ is too much to waste.

w.
 
In article <rj45bcdq97rct8bki645p5gg8q068plmnc@4ax.com>, hwabnig@.-
says...
On Fri, 24 Feb 2017 17:42:13 -0600, Peabody
waybackNO584SPAM44@yahoo.com> wrote:

I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K) that I
got from Banggood for $24 plus a power supply. These are single-channel,
low-frequency scopes, but would be useful for things one might do with an
Arduino or similar microcontroller, such as stepper motors and servos, plus
of course general audio stuff. The bandwidth spec is 200 kHz, but I suspect
the display would be pretty distorted at that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it could be
used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of course
they do suffer in comparison to a new $400 digital scope, or even a used
analog scope, but most people this side of an EE degree just don't need such
a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.

I do not agree.
Any tool should be fit for the task.
This toy isn't.

24$ is too much to waste.

w.
Click to expand...

It might be. I have not looked at the $ 24 kit. There are some sound
card programs that may work as a scope that is just as good.

Those $80 scope things that plug into a computer seem to be ok for what
they are.
 
On Sun, 26 Feb 2017, Helmut Wabnig wrote:

On Fri, 24 Feb 2017 17:42:13 -0600, Peabody
waybackNO584SPAM44@yahoo.com> wrote:

I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K) that I
got from Banggood for $24 plus a power supply. These are single-channel,
low-frequency scopes, but would be useful for things one might do with an
Arduino or similar microcontroller, such as stepper motors and servos, plus
of course general audio stuff. The bandwidth spec is 200 kHz, but I suspect
the display would be pretty distorted at that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it could be
used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of course
they do suffer in comparison to a new $400 digital scope, or even a used
analog scope, but most people this side of an EE degree just don't need such
a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.

I do not agree.
Any tool should be fit for the task.
This toy isn't.

24$ is too much to waste.
Click to expand...
I got my first scope when I was about 13, 1973. I paid $5 for it at the
local amateur radio club auction. AC coupled, no triggered sweep,
bandwidth barely higher than audio. But it gave me a scope to play with,
and learn some things about them. When I had access to a better one, I
think it was a Tek 317, I gave the five dollar scope to a friend, who got
it home on the bus. The thing weighed a "ton", though once you took the
case off, it was so much lighter.

I suppose now $24 is about the same amount. Lots of people don't know
what they would use a scope for, so starting really low gives them a
hands on chance to get to know the scope, if nothing else it's cool to
speak into a microphone and watch your voice deflect the trace. And this
thing has to weigh a whole lot less. Once you play with it, presumably
you get a feel, so when you look at something better, you have some
knowledge and experience to make a path through there.

I have a 545 with some extra plugins, and I barely use it because it is
way too big and heavy. But it was free.

Michael
 
On 02/25/2017 09:00 PM, Tim Wescott wrote:
On Fri, 24 Feb 2017 17:42:13 -0600, Peabody wrote:

I recently built the JYE Tech DSO-150 Shell oscilloscope kit (#15001K)
that I got from Banggood for $24 plus a power supply. These are
single-channel, low-frequency scopes, but would be useful for things one
might do with an Arduino or similar microcontroller, such as stepper
motors and servos, plus of course general audio stuff. The bandwidth
spec is 200 kHz, but I suspect the display would be pretty distorted at
that frequency.

There are a number of videos posted on Youtube on the build process and
operation of these scopes, and I posted one on Vimeo showing how it
could be used to monitor the PWM output of a TI controller.

https://vimeo.com/205487350

Dave Jones of the EEVblog says these kit scopes are garbage, but I think
that's too harsh. For low frequency stuff they work fine. But of
course they do suffer in comparison to a new $400 digital scope, or even
a used analog scope, but most people this side of an EE degree just
don't need such a fancy scope.

Well anyway, for $24, it's a fun project, and it can be useful for
troubleshooting. The kit instructions are pretty good.

Any scope is way better than no scope. Single channel, 200kHz is
definitely $25 worth if it's that or no scope.

Any two-channel scope with XYZ capabilities is more than twice better
than a single-channel scope with XYZ capabilities.

More channels are even better yet, but two channels plus an external
trigger gets very useful.

And yes, four analog channels, 1GHz bandidth, yadda yadda, is better than
that, even -- but while there may be a 2 and a 5 involved in the price,
there'll be a whole lot of zeros, too.
Click to expand...

Nah. There are functioning TDS 694Cs going for under a grand--3 GHz, 10
Gs/s simultaneously on 4 channels. (The cheap ones only trigger
properly on two channels, but that's OK.)

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net
http://electrooptical.net
 
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