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Dr. StrangeLiPo ... or How I Learned To Stop Worrying & Love The Battery !
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 Posted: Tue May 9th, 2017 10:06 am
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Si.
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A further 'slow trickle' ;) of R.C. components, has been arriving at Mysterious Moose Mountain H.Q.

My 2nd 380mAh £1.36p inc. P&P LiPo battery arrived today. :cool:

So did my new LiPo battery charger, more on that  l  a  t  e  r  .  .  .


- - - - - - -


In looking at all the possible options for the project, one thing was paramount ...

... COST !

AND high-quality !!

It seems to me that economy AND quality, are easily achievable TOGETHER, no problem.



I might come back and describe another option I came up with also.

But I do have an R.C. receiver winging it's way to me at this very moment.



I went for a 'modular' approach, rather than an 'all on 1 board' scenario.

This will allow easy & cheap 'swop-out' of any individual failed components, in that unlikely event.



I looked at 27MHz AM/FM, 40MHZ, 35MHZ (I think ?) & a couple of others as well.

The overwhelming conclusion I came to, was that a 2.4GHz system, was by far the most economical & easily available.



It was not possible, despite a lot of looking, at both new & 2nd hand R.C. gear ...

... to buy ANY receiver, as far as I can tell, that is cheaper than this one  .  .  .















Easy to get from tons of suppliers.

No soldering required, although pins CAN of course be soldered to if needed.

Probably easy to remove the plastic case, for an even more compact board.


And of course cheap !  .  .  .  VERY CHEAP !!


£3.84p inc. P&P


It's not actually possible to get a whole pint of beer for that these days. :f:


( they can also be bought as a Rx. & Tx. 'FlySky' twin-set, for around £20 inc. P&P )



:brill:



Si.



More  s  o  o  n  .  .  .



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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Tue May 9th, 2017 11:36 am
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Helmut
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Well...
now you need an additional full-bridge controller for brushed motors ( nowadays not that easy to find in small size ) plus, in case you want some effects, another controller for on-off outputs. Lots of space if you're in 1:35.... Those R/C jacks aren't that space-saving either.



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 Posted: Tue May 9th, 2017 11:49 am
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Si.
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Hi Helmut :wave:

Thanks for your encouragement ! ;)


2 VERY-compact & VERY-cheap E.S.C.s will be arriving here soon. :cool:


I'll probably save the 'effects' for when I get the $1000 loco. :shocked:


The plastic receiver-casing & R.C. connectors will most likely get binned & replaced by a custom installation.


It won't fit in my N-scale 0-6-0T though. :f:

Maybe one day something that small might be possible  .  .  .  maybe  .  .  .



:moose:



Si.



" We don't tolerate failure at  S.P.E.C.T.R.E  Mr. Bond ! "



:w:





____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Tue May 9th, 2017 03:49 pm
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Michael M
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What kind/size of jacks/plugs do you use on that receiver?  What kind of transmitter will you be using?  Inquiring minds want to know.  You're keeping me in suspense.

I have a couple of 3.7v LiPos and a voltage booster that I've picked up along the way.  Maling everything fit inside a loco seems to be a challenge.



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 Posted: Wed May 10th, 2017 09:40 am
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Si.
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Hi Michael :wave:


The connector pins on the receiver are of a standard 0.1" pitch.

They are used in 3s, with a 3-way cable-socket.

They can be easily bought, or even got sometimes from the inside of scrap computers etc.


However an E.S.C. ( electronic speed controller ) often comes with a number of connectors already wired to it.

From left to right ...

0.1" pitch 3-pin receiver plug.

On/Off switch.

Motor Connector.

Battery connector.





You may wish to shorten the wires, or use different connectors ...

... but it is essentially 'Plug & Play' as it stands.


The only change that is really needed to run a loco from 1 battery ...

... is to simply 'splice-in' your 'DC-DC 9 Volt step-up regulator', in the battery line.


:brill:


Si.


I bought the one in the photo for ... £2.54p inc. P&P :bg:

The main-board is about 20x20mm if I remember right.

Can't say fairer than that Guv. ! :P



____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Wed May 10th, 2017 03:43 pm
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Michael M
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Si,

I still want to see your shopping list for all of the parts.  What transmitter do you use with that tiny receiver?

I was thinking of picking up one of the small R/C tanks that come with two speeds for about $12 to install in my new railbus that I'm starting to work on.



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 Posted: Wed May 10th, 2017 05:30 pm
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Helmut
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Maybe this one, having lights and working off 2S LiPo is something to consider, too.



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 Posted: Wed May 10th, 2017 09:02 pm
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Si.
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" I was thinking of picking up one of the small R/C tanks that come with two speeds for about $12 to install in my new railbus "



Hi Michael :Salute:


The mind boggles !


Sometimes even I am lost for words  ;)  .  .  .






:shocked:


Si.




____________________

' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Thu May 11th, 2017 01:40 am
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Michael M
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That'll work for me.  Wonder if I can make the canon really fire.



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 Posted: Thu May 11th, 2017 03:40 am
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Michael M
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Helmut,

That ESC looks interesting, though it might be a tad too large.  Wonder what kind of transmitter works with it.



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