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Radio Control Handsets For Analogue Locos
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 Posted: Thu Apr 15th, 2021 02:16 pm
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Steve Soar
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I don't know if this has already been covered.


The analogue tracks are fed from a receiver powered from a 12V plug-adapter.  

Hand held transmitters control the PWM output to the analogue tracks.


Advantages are:-

1.   Easy to make weatherproof and can be left outdoors.
2.   Very small, so can be hidden away.
3.   Freedom to walk about and control from any position.
4.   Multiple controllers can be "paired" so more than 1 person can control.
5.   PWM output helps with "dirty" tracks.
6.   Cheap.
7.   No space taken up by a "big" controller.
8.   Front and rear lights can be added to the loco, 
      there is some dimming at very low speeds,
      but this is PWM, so much brighter than low voltage D.C,
      due to the persistence of the human eye.

Let me know if of interest and I will add more detail.


Regards to all

Steve


Photo shows a two track system.





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 Posted: Fri Apr 16th, 2021 07:42 pm
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fallen
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Hi Steve,

That looks interesting.
More details would be useful.
Where do they come from?

Thanks

Frank

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 Posted: Sat Apr 17th, 2021 08:44 am
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Steve Soar
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Hi Frank

Thanks for your interest.


I have been experimenting with 433MHz transmitters and receivers,
mass produced and very cheap. 

These are basic 4 channel On/Off type, so I have a microprocessor (PIC12f629), 
which controls acceleration, deceleration, forwards and reverse. 

The dual one in the photo, is basically 2 loco ones in a box,
and supplies power to 2 track circuits. 

I had considered marketing this,
but decided against it and keep it as a hobby.


I attach a photo of a single track system which I tried to sell as a DIY kit,
components are through hole, so very easy build.
 
If you would like to have a play with it and you are in the UK,
I can post it to you (I live in Lancashire).  

If you like it then keep it.


Regards

Steve





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 Posted: Sat Apr 24th, 2021 01:44 pm
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Si.
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Hi Steve  :wave:


A very interesting looking rig !  :thumb:


I have a similar R.C. test-rig (mess) for 'analogue' trains ...  ;)

... using the popular & very very affordable 'FlySky' R.C. components.  :cool:

'FlySky' FS-GT2E Transmitter & Receiver



I am a 'newbie' to R.C. (kinda) but an audio & P.S.U. electronics Vet. !  :P

I have a few On30 'analogue' locos, getting 'up-scale' BASHed to 1:35n2
Not in the least bit of a rush & a couple of motive-power items, are total scratchbuilds.  :brill:


I also have a small (compact !) box full of nice Li-Pos, cables, charger & 'FlySky' R.C. stuff etc.  :!:





I can test ANY combo, with ANY loco project ...  :bg:

... simply by connecting the 'bench-mounted R.C. gear' output, to my track, simple !

It makes it VERY easy to check out components, BEFORE shoe-horning them into locos.  :boogie:



This photo was posted by a guy attempting to use a very non-standard, weird 6V motor ...

... clearly had some space issues, with the gigantic-sized battery-pack ...  :shocked:

... and then claimed 5-mins later, that nothing worked ! ... I wonder why ?  L:





Bench testing in the way you've done & as described above, saves getting in a pickle !  :f:

It's good to test various locos etc. 'as is' ... Without ending up with another basket ^^ case !  :us:

:doh:


I have rarely read, of this kind of 'analogue loco' testing, in the R.C. Forum.  L:

A huge 'myth' perhaps, that track is always just TOO DIRTY to do it !  :Crazy: ?

Can't say I've ever had a problem with "dirty track" indoors.  ???


Your R.C. handsets look very neat, simple & to the point.  :thumb:


:cool:


Si.




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 Posted: Sun Apr 25th, 2021 10:42 am
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Steve Soar
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Hi Si.

Thanks for your response.

Interesting that we have followed similar lines of R.C.
impressive stuff.  

I like the "spares" box,
mine is more of a "junk" box.


I have to date only used 4 channel 433MHz, 
much used on radio control of garage doors. 

I use a PIC + bridge driver I.C. to control the loco.
I have got the size down to 54mm x 27mm x 22mm, including battery.
Will post this later.

Handsets are plentiful,
the photo shows my "collection" of some of the types available on ebay.  
The smaller ones are ok, but have shorter range.


I am now playing with 2.4GHz, early days but so far so good.
Hopefully will be able to post, when I have something running.

Best regards
Steve





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 Posted: Mon Apr 26th, 2021 09:21 am
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Helmut
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Gentlemen,
may I humbly point your attention to this website:

https://www.engineersgarage.com/esp8266/nodemcu-and-l293d-motor-driver-controlling-dc-motor/

All you need is:
A power supply, a L293D, an ESP8266, and Android cellphone.




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 Posted: Mon Apr 26th, 2021 07:23 pm
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Bob Walker
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What is the definition of an analogue train ?



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 Posted: Mon Apr 26th, 2021 08:03 pm
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Nice Guy Eddie
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One without any digital-microchips ?


L:


Eddie




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 Posted: Mon Apr 26th, 2021 09:18 pm
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Helmut
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Exactly.

Every electrical device containing more than one transistor,
should be regarded with mistrust.

That's why I love my old London Taxi of '69,
even the charge controller works mechanically!




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 Posted: Tue Apr 27th, 2021 06:49 am
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davecttr
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Bob Walker wrote:  
What is the definition of an analogue train ?

 
In the context of this topic,
I think it means a traditional DC layout,
where the controller/power supply is replaced by a R.C. 'power supply',
which feeds the PMW modulated power directly to the rails.

Or is it?




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