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Dr. StrangeLiPo ... or How I Learned To Stop Worrying & Love The Battery !
 Moderated by: W C Greene Page:  First Page Previous Page  1  2  3  4  5  6  7  Next Page Last Page  
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 Posted: Sun May 14th, 2017 12:48 am
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Si.
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Hi Michael :wave:


Yes it is, more or less.


I couldn't work out the shipping cost on your link, cos I didn't have a U.S. zip-code handy.

But, shipping was extra, & it seems like there are things in the deal you don't need, like a battery for example.

It did look to be coming from New York though, so might be worth a few bucks extra for speed.


I just very quickly found this one, which is in fact I think what I was looking at a few days ago.

FlySky Tx. & Rx. Twin-Set - $24.15c inc. P&P

This one doesn't include any extras, like batteries etc.


It is also a 2-channel transmitter, not a 3-channel like your link.

The cheap Flysky receivers, all seem to be 3-channel ones.

The difference appears to be, you either get a 2 or 3 channel transmitter.

The receiver will either operate as a 2 or 3 channel, depending on what is controlling it.


I didn't enter any specific code-numbers & stuff like that to search for it.

I just used the search-term 'FlySky Transmitter Receiver' ...

... and 'worldwide listings' then 'cheapest inc. P&P first'.


I found one the other day for about £19 U.K. pounds inc. P&P



:thumb:



Si.



When I find my £0.99p transmitter don't do $4!7 ... I'll probably have to buy one ! ;)




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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: Sun May 14th, 2017 01:18 am
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Si.
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Hi again Michael :wave:


You may already know the answer to this.

But just a quick thought.


Perhaps that battery in your link is for the transmitter.

The deal came with what looked like a USB cable as well.


I was fairly sure that the one I was looking at, was powered by a 9 Volt, or some AAs.

Might be worth checking on that, for your favored battery type.


:bg:


Si.

 



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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: Sun May 14th, 2017 04:29 pm
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Helmut
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The transmitter is powered by a 1S LiPo 3.7V. This is an advantage over earlier models, where the internal supply was 5V and so they had 6 or 8 1.5Vcells to operate it. ( They used standard 7805's to provide the logic's supply! ) A lot of useful energy was wasted this way. Nowadays all that internal stuff works on 3...3.3V, and the overall efficiency is higher - the battery lasts longer.
The receiver is tailored to operate off 5(-0.2/+1)V, because NiMHs are still standard in the R/C world.

Last edited on Sun May 14th, 2017 04:30 pm by Helmut



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 Posted: Mon May 15th, 2017 12:29 pm
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Si.
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This kind of information is exactly why I wanna keep Helmut on wages.

Don't worry Helmut ... The cheque is in the mail. ;)



I must say that those ol' 7805 3-pin regulators, are def. yesterdays tech.

Probably worth spending a few dollars more, for a 3.3 Volt microchip Tx. & battery.



:moose:



Si.



Helmut would hate my RED HOT vacuum-tube dropper-resistors ! :shocked:



____________________

' 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: Mon May 15th, 2017 03:01 pm
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Herb Kephart
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Si

A couple of comments

First, why do you have to control more than one loco at a time. I know that you come from the "instant decision" world of model car racing--but choo-choo's aren't like that.

Unless your racing trains. Put a discrete on off switch somewhere on the loco. You will need that anyway, or else you will be buying a lot of batteries. When the engineer (you) jumps down from the cab to change locos turn the switch off and turn the one on the second loco on, and do your thing. Just ONE frequency involved for the whole railroad.

There have been a couple times, that if a board were in two pieces, it would have made an installation a lot easier. I even considered sawing a board in half, to make things easier one time. Semi-rational thought came back just in time to prevent the almost surety of turning the whole thing into a dogs breakfast. Plus, Gromit said that he wasn't gona eat it anyway 

Herb



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 Posted: Mon May 15th, 2017 04:10 pm
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W C Greene
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Herb has it right, all I really need is one transmit crystal and several receiver crystals (same freqs) since I seem to not have "ops sessions" with anybody else these days. Of course, all my stuff is old timey analog 27MHZ and I like it that way (so does my pocketbook). For me, the "ultimate" on/off switch would be the good old magnetic reed switches. Just pass the magnet across to run or not. But once again, the old Radio Shack sub miniature switches will have to do, they have been working for many years anyway.
But cutting boards in half? Shirley, you jest! Just don't call me Shirley......

Woodie



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 Posted: Wed May 17th, 2017 04:43 pm
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Si.
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??? . . . L: . . . :us: . . . :dope:


I'm not sure how it works.

I bought it cos I liked the colour & have loads of black 'wall warts' already.

You plug it into a 5 Volt OOOSB socket, via the included lead.

It has 6 battery sockets & 6 red LEDs.


I guess it's a trickle-charger :slow: ?

Does it switch off when the jobs done ?

Do the lights go OFF when the battery/ies are charged ?

Do the lights change individually, if say you charge both a large & small battery at the same time ?



:mex:



Si.



The design & marketing boys dun me on this one ...

... I payed £0.65p more than I needed to, cos I thought a green one looked :cool: !




____________________

' 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 17th, 2017 06:34 pm
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Si.
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Thanks very much Herb & Woodie BTW.

The simple easy access on/off switch on a loco would be fine.

My idea is that if 2 locos are being operated at once ...

... one would be D.C. and the other R.C. anyhow.

I like the idea of a R.C. switcher being able to operate around a yard ...

... without bothering a D.C. loco that has arrived with cars, for example.


- - - - - - -


Another question.

E.S.C.s for cars, are available with/without a 'brake' function.

I don't quite understand what the 'brake' function is.

Could a loco operate with BOTH types of E.S.C ?

Or is it best to have either a 'brake' or 'no brake' E.S.C ?


:moose:


Si.


I guess the 'brake' function, loads the armature on deceleration ...

... same as a slotcar throttle with a 'brake' function.

I figure in practice, this affects a generally fairly slow-moving loco, very little.

So either should be OK. L:



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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: Wed May 17th, 2017 07:50 pm
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Helmut
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@Si
ESCs with dynamic braking are only suitable for electric racing cars and not for worm-gear locos. A sudden stop by short-circuiting the motor ( which is mostly the case, only the most sophisiticated controllers for 1:4 cars etc. offer gradual braking ) can cause gear tooth caries.



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 Posted: Wed May 17th, 2017 10:38 pm
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Si.
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OH I SEE ! :dope:

( That's what my Yamaha hard-disc recorder says, when it KNOWS you've been an IDIOT ! ) ;)



Thanks very much Helmut :bow:

Yes, a slotcar doesn't have a worm-gear & there is a lot of potential slippage/skidding.

I always knew there was a good reason my Dad said ...

... never to throw the reversing switch, when my Tri-ang 'Dock Authority' was at full throttle ! ;)



I did for some reason order 2 ESCs, one with & one without a 'brake'.

I think the 'brake' one may well have a brake on/off switch on it though ...

... but again, the £2.54p I paid, obviously didn't cover the cost of printing instructions, other than in CHINESE !

Perhaps I can use the 'brake' one, in a gearhead motored loco. L:



Another $0.05c cheque is in the mail Helmut. :thumb:



:moose:



Si.



I actually have all my parts now ! :bg:

I should have ordered some battery connectors though, as I don't have any at the moment. :f:



____________________

' 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
Back To Top


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