Raspberry Pi digitizer boards and Earthworm

[Bob Hammond]

Which digitizer boards are people using with Raspberry Pi/Earthworm setups?  Obviously, there needs to be a EW module for any digitizer board.

[Ima Itikarai]

Hi,

I hope I am reading you correct. Are you asking whether a rs2ew module has been developed yet? I am keen to know about this as well. Having such a module soon would be great.

I have a co-located RS-EW system where EW runs in a separate machine. I tried existing EW modules to get RS data into the EW system in this local setting. I thought I passed it but when I tried exporting that data to another EW system over a long distance internet export/import pair, it fails. Would this failure be associated with the data type that is exported?. 

Ima.

[El Berto]

Hi,

if you ask for digitizer I suppose you are talking about a generic digitizer, not Raspberry Shake as said...
May you be more specific?

[Bob Hammond]

I was looking for a replacement for the Webtronics 24-bit AD board and one which is compatible with a Raspberry Pi running EW.  I have found, unfortunately, that the Raspberry Shake RJAM AD board cannot be used as such.

Bob

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[Bob Hammond]

I was looking for a replacement for the Webtronics 24-bit AD board and one which is compatible with a Raspberry Pi running EW.  I have found, unfortunately, that the Raspberry Shake RJAM AD board cannot be used as such.

Bob

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[Jonathan]

Bob,

Did you get the PSNAdSend Earthworm module to build on your Earthworm
installation on your Pi? I know the 24-bit PSN digitizer has a USB serial
port that should work without issue under Linux connected to the Pi using
the PSNAdSend module.

The drawback about the Raspberry Shake/Jam digitizers is that they require
the Raspberry Shake image and their associated software, and the only way
to get data from anything Raspberry Shake is with the slink2ew module. I'm
not aware of anything else available for the Pi that can import seismic
data into Earthworm.

Jonathan

On Fri, 23 Oct 2020, Bob Hammond wrote:

> Date: Fri, 23 Oct 2020 07:32:52 -0700
> From: Bob Hammond <propg...@gmail.com>
> Reply-To: earthwo...@googlegroups.com
> To: earthwo...@googlegroups.com
> Subject: Re: [Earthworm Forum] Re: Raspberry Pi digitizer boards and Earthworm

>
> I was looking for a replacement for the Webtronics 24-bit AD board and one
> which is compatible with a Raspberry Pi running EW. I have found,
> unfortunately, that the Raspberry Shake RJAM AD board cannot be used as
> such.
>
> Bob
>
> On Sun, Oct 11, 2020 at 4:08 PM Ima Itikarai <hausgu...@gmail.com> wrote:
>
>> Hi,
>>

>> I hope I am reading you correct. Are you asking whether a *rs2ew* module

>> <https://groups.google.com/d/msgid/earthworm_forum/d76e61ed-b23d-4709-aa81-c7ed29a0cd61n%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .

>>
>
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>

[Bob Hammond]

Jonathan,

That's what I do now:  The PSN digitizer connected via USB to a Raspberry Pi 3 running Ubuntu and EW and, of course, the PsnAdSend module.  It works great.

Someday though, that digitizer is going to puke and I was inquiring about alternatives since it is no longer in production.

Yes, the RJAM is not the solution for those of us who want to use EW in its native form and with a Raspberry Pi.

An alternative is using a BeagleBone Black, Rev. C, with a Symmetrical Research digitizer  This configuration has been around for a long time and also works well.  The downside with the Symmetrical Research digitizer is the cost....~$700.

My issue was not the EW module, it was a replacement for the digitizer.

To view this discussion on the web visit https://groups.google.com/d/msgid/earthworm_forum/alpine.BSF.2.21.9999.2010232338590.2404%40closet.server.

[Branden Christensen]

Hi Jonathan and Bob!:

Long time Earthworm user and CEO of Raspberry Shake here. 

I just wanted to check in with you to get some better understanding here. 

@Jonathan, you say "The drawback about the Raspberry Shake/Jam digitizers is that they require the Raspberry Shake image and their associated software, and the only way to get data from anything Raspberry Shake is with the slink2ew module. I'm not aware of anything else available for the Pi that can import seismic data into Earthworm."

Why is using our Debian image and associated software a drawback when our software uses <2% of the CPU on the Raspberry Pi 3 Model B, for example, and you can install Earthworm directly on the OS just like you could with any other image?

Why is using slink2ew a drawback?

@Bob, I would like to understand this better: "the RJAM is not the solution for those of us who want to use EW in its native form and with a Raspberry Pi." 

Whether you are using slink2ew, psnadsend or any of the dozens of other acquisition modules that come with Earthworm, you are using Earthworm the same way- In the end, any data just gets dumped by any of these acquisition modules into your ring of choice. What am I missing here?

Thank you both for your explanations. Have a great weekend. 

Kind regards from tropical Panama, 

Branden Christensen

CEO, Raspberry Shake, S.A., Social Media: @raspishake

Spreading love for seismology, one hobbyist at a time. 

To view this discussion on the web visit https://groups.google.com/d/msgid/earthworm_forum/CAKoB7OrcA1E%3DHB37Dt-a2GWPhUNRO2fx8TPG7Mg%2BA9rT5Ydnww%40mail.gmail.com.

[Jonathan]

Hi Bob,

Larry might still have some 16-bit digitizer boards left. Perhaps you can
get them and keep for spares. I love his digitizer boards and use them in
the same way as you, with PSNAdSend and Earthworm.

Hi Branden,

For me, it's because the proprietary software limits configuration
options. I know you keep it proprietary because of citizen science, and I
support the citizen science aspect of the Raspberry Shake/Jam, but I would
much rather use an Earthworm module that talked directly to the
digitizer's serial port, then, I can feed the citizen science project with
data from one of my rings.

Also, I don't know if the Shake SD image uses Debian with the GUI, but I
feel that an image without the GUI is the better option. I know the user
can probably uninstall the associated software packages for the GUI, but
they are stuck with Debian 8. I use Raspian Lite.

I do like the options you have provided making it as customizable as
possible, such as saving waveform data to an external USB drive. Do you
have any other options in place to minimize SD writes even further?

Jonathan

On Sat, 24 Oct 2020, Branden Christensen wrote:

> Date: Sat, 24 Oct 2020 10:36:27 -0500
> From: Branden Christensen <branden.c...@gmail.com>
> Reply-To: earthwo...@googlegroups.com
> To: Earthworm Community Forum <earthwo...@googlegroups.com>

> Subject: Re: [Earthworm Forum] Re: Raspberry Pi digitizer boards and Earthworm
>

> Hi Jonathan and Bob!:
>
>
> Long time Earthworm user and CEO of Raspberry Shake here.
>
> I just wanted to check in with you to get some better understanding here.
>
> @Jonathan, you say "The drawback about the Raspberry Shake/Jam digitizers
> is that they require the Raspberry Shake image and their associated
> software, and the only way to get data from anything Raspberry Shake is
> with the slink2ew module. I'm not aware of anything else available for the
> Pi that can import seismic data into Earthworm."
>
>
>

> *Why is using our Debian image and associated software a drawback when our

> software uses <2% of the CPU on the Raspberry Pi 3 Model B, for example,
> and you can install Earthworm directly on the OS just like you could with

> any other image?Why is using slink2ew a drawback?*

>
>
> @Bob, I would like to understand this better: "the RJAM is not the solution
> for those of us who want to use EW in its native form and with a Raspberry
> Pi."
>

> *Whether you are using slink2ew, psnadsend or any of the dozens of other

> acquisition modules that come with Earthworm, you are using Earthworm the
> same way- In the end, any data just gets dumped by any of these acquisition

> modules into your ring of choice. What am I missing here?*

>
>
> Thank you both for your explanations. Have a great weekend.
>
>
> Kind regards from tropical Panama,
>
>

> *Branden Christensen*
> CEO, Raspberry Shake, S.A. <http://raspberryshake.org/>, Social Media:
> @raspishake
>
> *Spreading love for seismology, one hobbyist at a time. *

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[Ima Itikarai]

Hi All,

Our institution use EW for our das with psnadsend digitizer. I
consider myself an average level EW user. I was doing some test
runs with slink2ew module recently to get Raspberry Shake data into EW
system. It worked. The key modules that made this work are slink2ew
and wave_serverV. After that I tried getting the data into modules we
normally use. Examples are archman and ascii RSAM data files. I read
the saved archman file, in seisan format, fine. The ascii RSAM files
also came out well......The message here is that as soon as the
Raspberry shake data gets into the EW system, it can be used in most
aspects of EW applications.

Oops!! Some clarification. In this test run, EW is not running from
a Raspberry Pi. Its running on a 12v Windows machine sitting beside
the Raspberry Shake.. Both are connected by LAN.

This setup is probably different from what Bob and Jonathan are
talking about, which is to do more with an alternative digitiser
(Bob), and in a way it is very logical and relevant from many
perspectives.

Question for BOB: Are you using psnadsend digitizers to digitize
analogue signals?

I take this opportunity to acknowledge our unanimous supporter(s) in
provision of resources to have our EW system ticking.

Ima.

On 10/25/20, Branden Christensen <branden.c...@gmail.com> wrote:
> Hi Jonathan and Bob!:
>
>
> Long time Earthworm user and CEO of Raspberry Shake here.
>
> I just wanted to check in with you to get some better understanding here.
>
> @Jonathan, you say "The drawback about the Raspberry Shake/Jam digitizers
> is that they require the Raspberry Shake image and their associated
> software, and the only way to get data from anything Raspberry Shake is
> with the slink2ew module. I'm not aware of anything else available for the
> Pi that can import seismic data into Earthworm."
>
>
>

> *Why is using our Debian image and associated software a drawback when our

> software uses <2% of the CPU on the Raspberry Pi 3 Model B, for example,
> and you can install Earthworm directly on the OS just like you could with

> any other image?Why is using slink2ew a drawback?*
>
>

> @Bob, I would like to understand this better: "the RJAM is not the solution
> for those of us who want to use EW in its native form and with a Raspberry
> Pi."
>

> *Whether you are using slink2ew, psnadsend or any of the dozens of other

> acquisition modules that come with Earthworm, you are using Earthworm the
> same way- In the end, any data just gets dumped by any of these acquisition

> modules into your ring of choice. What am I missing here?*

>
>
> Thank you both for your explanations. Have a great weekend.
>
>
> Kind regards from tropical Panama,
>
>

> *Branden Christensen*
> CEO, Raspberry Shake, S.A. <http://raspberryshake.org/>, Social Media:
> @raspishake
>

> *Spreading love for seismology, one hobbyist at a time. *

>>> https://groups.google.com/d/msgid/earthworm_forum/alpine.BSF.2.21.9999.2010232338590.2404%40closet.server

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>

[Branden Christensen]

Good evening Jonathan! Thank you for your response. I appreciate your time. 

I reply inline below. 

For me, it's because the proprietary software limits configuration
options.

I know you keep it proprietary because of citizen science, and I
support the citizen science aspect of the Raspberry Shake/Jam, but I would
much rather use an Earthworm module that talked directly to the
digitizer's serial port, then, I can feed the citizen science project with
data from one of my rings.

What configuration options do you need/ are you missing downstream of the serial port? What advantage is there to accessing raw un-timestamped data directly from the serial port? I would very much like to understand what your preference is rooted in. 

If we take PsnAdSend.d as an example, I cannot see any parameter in the configuration file that would benefit the end user of a Raspberry Shake or Raspberry Jam. So I am very curious here. 

Also, I don't know if the Shake SD image uses Debian with the GUI

, but I
feel that an image without the GUI is the better option.

So do we :) The Raspberry Shake image comes headless.  

I know the user
can probably uninstall the associated software packages for the GUI, but
they are stuck with Debian 8. I use Raspian Lite.

I do like the options you have provided making it as customizable as
possible, such as saving waveform data to an external USB drive. Do you
have any other options in place to minimize SD writes even further?

Cool, more USB enhancements are on the way in an upcoming release. We have really built out the automation with the USB. 

We are not really motivated to work more on minimizing SD card writes. This is a world of diminishing returns dominated by false pretenses. For years now we have shipped with MLC technology and MLC cards do not fail. There is a false perception in the world of consumer electronics that all microSD cards fail which is based on real experiences with cheap, consumer grade TLC cards. Our own experience has taught us that even this is due to poor manufacturing practices by a few big, cheap providers. We have plenty of TLC cards sourced from reliable manufacturers that we have been abusing in the lab for over 4 years without constant power cycles that are still working fine. I talk more about the different microSD card technologies here if you are interested. 

Thanks so much for your insights Jonathan. Enjoy the weekend. 

Branden

[El Berto]

I have found no data about Webtronics board...