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  • Topic: Bob's Adventures in DCC

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    • October 28, 2018 10:38 AM EDT
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      Bob does this mean your going to have power to the rails at the get together?

      Richard

    • October 28, 2018 5:26 PM EDT
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      Richard said:

      Bob does this mean your going to have power to the rails at the get together?

      Richard

      Eventually, yes.  I think this next spring, I will have all the track replaced at Majestic, and over and around the big loop to Dead Rooster Gulch.  I'm budgeting myself so much $ per year for this.  The big expense will be the yards at both ends.  Switches = $$

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    • October 28, 2018 6:31 PM EDT
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      Bob, interesting thing about stainless, it is superior to brass for the integrity of the DCto allC signal due to the way "skin effect" works. The short answer is there is less "smearing" of the DCC signal with a less conductive metal for the rails.

      You can swap the switches out last. I changed over bit by bit from brass to SS initially, as I had bought a bit of brass.

       

      A few years later after swapping to all SS, I noticed a place where there was a temporary slowdown... walked over there and there was a 1 foot section of brass I missed. So even though it was more conductive as a metal, it was better conduction to the wheels.

       

      Greg

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    • October 28, 2018 7:37 PM EDT
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      Bob McCown said:
      Switches = $$

      No kidding but that is for another forum altogether !

       

    • November 17, 2018 10:38 AM EST
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    • November 17, 2018 2:48 PM EST
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      Next experiment will be the wired and wireless throttles from Dave Bodnar's site  http://trainelectronics.com/DCC_Arduino/DCC++/Throttle/index.htm

       

      I need to order some keypads and displays, but I have the RF and Arduinos already:

       

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    • November 17, 2018 8:40 PM EST
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      I really miss walking into Radio Shack so I could put my hands on stuff I had no clue I was after !

    • November 18, 2018 7:18 AM EST
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      Yup.

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      I.A.R.R.R. Member #12

      and King Butt Modeler

    • November 20, 2018 8:19 AM EST
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      I had the opposite issue with Radio Shack, What I needed they never had.  Fortunately there were several great stores that had what I needed and now the Web has more than what I need.

       

      Of course the West coast has Fry's and if you can not wait for the mail you can get most anything you need.

    • November 20, 2018 10:25 AM EST
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      Dan Pierce said:

      I had the opposite issue with Radio Shack, What I needed they never had.  Fortunately there were several great stores that had what I needed and now the Web has more than what I need.

       

      Of course the West coast has Fry's and if you can not wait for the mail you can get most anything you need.

       

      RS had a few things I could use, but I usually ended up in You-Do-It Electronics to get 'real parts'.  Now half my stuff is from Digikey or Mouser, the other half from Aliexpress.  

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    • November 20, 2018 12:29 PM EST
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      There's the DCC standard, while not perfect, it is a standard, and let's you select decoders and other components to your liking. The Revo (non DCC one) is proprietary and does not interface with anything else. It's also missing features as compared to DCC...

       

      DCC has the concept of a "command station" which can know which trains are running and affect them all at the same time, like all stop. It can also facilitate the handoff of a train to different engineers. These are just some examples.

       

      The new standards for reading back location of trains without a lot of additional hardware is nice.

       

      In another sense, as Bob mentions, the fact that most of a locomotives settings stay with the loco means taking it to another layout or different throttle makes things easy and transportable.

       

      It all of course depends on the features you demand and use. This should not start a "war" on this thread about what is best, we are in the DCC forum and Bob is sharing his "journey" in DCC.

       

      There's pro's and con's to all the different systems, otherwise they would not all exist.

       

      Greg

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    • November 21, 2018 12:47 PM EST
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      I'm looking for suggestions for a new oscilloscope.  Ive been hearing good things about the Owan SDS5032E-V scope, and its a reasonable price for what it looks like it provides.  I mostly want it to help me mess around with DCC, and general Arduino-y playing.  

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    • November 21, 2018 3:53 PM EST
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      You can buy some pretty inexpensive ones,  I have a used Tek 400 MHz 4 channel, but for debugging DCC, I bought one of these, clearly fast enough for just debugging:

       

      https://www.ebay.com/itm/DSO138-2-4-TFT-Digital-Oscilloscope-Kit-DIY-Parts-1Msps-Probe-STM32-/273521546804?_trksid=p2349526.m4383.l4275.c10#viTabs_0

       

      Greg

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      Be sure­ to visit ­my site, l­ots of tec­hnical tip­s and modi­fications,­ and you c­an search ­for topics­ and key w­ords.


      ­Click HERE for Greg­'s web sit­e
      PLEASE NOT­E: Please do NOT use private messaging, i­f you have­ a questio­n, feel fr­ee to emai­l me priva­tely, u­se regular­ email onl­y: greg@el­massian.co­m

    • November 21, 2018 5:43 PM EST

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      Bob McCown said:

      I'm looking for suggestions for a new oscilloscope.  Ive been hearing good things about the Owan SDS5032E-V scope, and its a reasonable price for what it looks like it provides.  I mostly want it to help me mess around with DCC, and general Arduino-y playing.  

      Bob - if you want a serious scope this is my recommendation - I have had one for almost 2 years - very nice.

      https://www.amazon.com/Rigol-DS1054Z-Digital-Oscilloscopes-Bandwidth/dp/B012938E76/ref=sr_1_3?ie=UTF8&qid=1542840101&sr=8-3&keywords=rigol+ds1054z

      dave

       

    • November 21, 2018 10:30 PM EST
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      Bob,

       

      I recently bought this one:

      DSO

       

      So far I'm quite happy with it, yet I'm no expert. Just unboxed one of these today, DSO and AWG will play well together.

      Arbitrary Waveform Function Generator

       

      Happy Turkey Day all,

      Michael

       

    • November 22, 2018 10:01 AM EST
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      I have a Rigol, but still mostly use my Tek 2235.  It's so much more responsive.

       

      For analyzing any kind of bitstream, I use a Saleae Logic 8.  It's a remarkable little gadget.

    • November 22, 2018 11:47 AM EST

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      Eric Reuter said:

      I have a Rigol, but still mostly use my Tek 2235.  It's so much more responsive.

       

      For analyzing any kind of bitstream, I use a Saleae Logic 8.  It's a remarkable little gadget.

       

      Eric - agreed on the Saleae Logic 8 - I think I paid almost $150 for the first unit some years ago - recently found a clone for closer to $10 that works with the original software -

      https://www.amazon.com/NOYITO-Analyzer-Device-Channel-Arduino/dp/B07C4DTWLV/ref=sr_1_2?ie=UTF8&qid=1542905110&sr=8-2&keywords=USB+Logic+Analyzer+24M+8CH

      or

      https://www.banggood.com/USB-Logic-Analyzer-24M-8CH-Microcontroller-ARM-FPGA-Debug-Tool-p-1177821.html?rmmds=search&cur_warehouse=CN

      Highly recommended

      dave

    • November 22, 2018 12:23 PM EST
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      Eric


      Which Rigol scope are you comparing the Tex 2235 analog scope; 2 mV sensitivity, 5 ns/Div sweep rate analog scope too?  The Saleae Logic doohickey is on my list, albeit I have to determine if the add-on Siglent 16 channel MSO hardware and software is a better option verses the Saleae at about the same cost.

       

       

      Bob, the link below is helpful comparing specifications of current DSO offerings.

      Oscilloscope side by side comparisons

       

      Michael

       

       

       

       

      This post was edited by Michael Glavin at November 23, 2018 11:11 AM EST
    • November 22, 2018 1:55 PM EST
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      I'm not sure which one it is.  We have a couple at the college where I teach.  They are in the $300 bracket.  I just never feel like I know what I'm looking at on those things.  I rarely use it at any frequency higher than audio.  I'm sure the higher-end digital scopes offer a better experience.  

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