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'DelTang' 2.4 GHz Receivers
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 Posted: Thu Oct 18th, 2012 02:27 pm
   
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mwiz64
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I received my DelTang 2.4 RX with integrated ESC today. Holy flippin' smokes is that thing small! It makes a standard postage stamp look big. I saw the photos on the web site but I guess I didn't really visualize it properly. Now, I'm worried about my soldering skills and my eye sight... No worries, I'll just place it under a magnifying lamp and I'll have to get a smaller soldering tip. Might even pop for a good quality soldering station. I've been wanting one for awhile now and now I have an excuse.

<edit> I noticed that he offers the same with some wires attached for train guys. I'd go for that one unless you have the desire to operate it in a different way than just simple powering of a loco. These little things seem to be quite customizable.

David, if for some reason I decided I needed to go up to 7.4v could this little guy handle it?

Mike

Last edited on Thu Oct 18th, 2012 02:44 pm by mwiz64



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 Posted: Thu Oct 18th, 2012 02:48 pm
   
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DavidT
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Smallest tip you can find helps as does the thinnest solder to avoid swamping the pads.

Bernard suggested a version with wires would help people so I now have that available. Happy to swop if you need to.

6v is the 'absolute max' rating of the motor control chip. If you can feed the volts from 2 and 3 AA cells onto your track with all other electronics disconnected you should get an idea of speed range from one lipo.
Regards, David.

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 Posted: Thu Oct 18th, 2012 04:32 pm
   
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mwiz64
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Let me take another look at it, David. I just might take you up on the offer to swap.

Mike



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 Posted: Thu Oct 18th, 2012 06:18 pm
   
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Bernd
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I got my Rx43d-4-v5 last Saturday. Only took one week. That must have been one scared pigeon David strapped that package to.:shocked:

Your right Mike, they are small.

I'm working on the crane to try and get it to the point of installing the Rx. Still need to get a Tx. That could happen next week.

I see a lot of other projects that could benifit from this little device.:!:

Again thanks to David T for producing such a small reciever.

Bernd

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 Posted: Thu Oct 18th, 2012 08:16 pm
   
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W C Greene
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I'm still wondering how one of these tiny receiver/ESC's would handle a 2 motor Garratt or 1 2-4-4-2 hauling 6 oaded ore cars and coach up a 10% grade! What's the current rating???

Woodie



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 Posted: Thu Oct 18th, 2012 09:46 pm
   
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DavidT
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Hi Woodie,
I don't know what current those would need but the chip used for the ESC is rated by the manufacturer at 500mA. I have a mains controller which is only rated at 450mA. I have receivers with 2 and 3 integrated ESCs which would probably be better for multiple engines.

ON resistance is also important. It is around O.7 ohms. This is identical to the resistance through shorted out test leads on a Fluke multimeter. Yards of wire, track joins and wheel pickups are not going to come anywhere close to that.

Does this help?
Regards, David.

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 Posted: Thu Oct 18th, 2012 10:50 pm
   
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W C Greene
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David-thanks but ON resistance?? Fluke multimeter???? I was just asking a question, I am very happy with my old timey 27MHZ r/c car receiver/ESC's. They have been giving me fine control/performance for over 10 years now. Most all my locos are converted Bachmann On30 locos with Bhueler motors. Wire to the rails? Not me!

Woodie



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 Posted: Fri Oct 19th, 2012 02:25 pm
   
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mwiz64
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David,

Just a suggestion but for larger models, "O scale" and such, you might consider offering a model that can utilize a 2 cell lipo and handle a little more current.

Mike



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 Posted: Fri Oct 19th, 2012 02:41 pm
   
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DavidT
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Yes, I agree. I've started with small stuff and need to 'grow'. I'm doing a gadget now that will probably help me with that in due course.
dt.

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 Posted: Fri Oct 19th, 2012 02:53 pm
   
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mwiz64
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I just love being able to have a discussion with a MFG of products I use and know that I'm being listened to... even if you don't end up using my suggestion it at least indicates that there is a strong desire to insure customer satisfaction.

Thanks, David.

Mike



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