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Purchased a 'FlySky' FS-GT2E Transmitter & Receiver
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 Posted: Fri Dec 8th, 2017 02:38 pm
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Helmut
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Some more food for thought...
First the schematics of the 4-function module.

And a photo of the prototype ( Didn't bother to make a PCB yet )

The ULN2803 is a tiny SMD sitting directly on the copper pads underneath. I used two imputs/ outputrs in parallel as they fit on the 0.1" spacing then.

Last edited on Fri Dec 8th, 2017 02:40 pm by Helmut



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 Posted: Sun Dec 10th, 2017 09:47 am
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George Ruthven
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Helmut,
will you also pse show the conversion of the remote into one's own box as per your example. (and what happens to the batteries?).
George

Last edited on Sun Dec 10th, 2017 09:48 am by George Ruthven



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 Posted: Sun Dec 10th, 2017 10:10 pm
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Helmut
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I've shown the schematics for the pushbuttons, here is sample of how they are mounted onto the TX's housing:


You need a 14mm hole (or 9/16") to make it snug-fit. Now I think it is clear why I showed two 2-pin connectors going into a 4-pin, because there are 2 PB's on each side.



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 Posted: Mon Dec 11th, 2017 05:32 pm
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George Ruthven
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Thks Helmut:Salute:



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 Posted: Mon Dec 11th, 2017 06:22 pm
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Helmut
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@George
Mind you, this is just the hardware - you need software to program the switching module.  I'll pack that all into a .zip-file and load it up ( one of these days;)).
In a nutshell, the switch module must be able to adapt itself to the TX's pulselengths, and be told whether to toggle a function output or keep it momentary.
The flat-box adaptation is much more complicated ( not so if FlySky have done away with 9.6..12V supply voltage requirement in the meantime ) and only doable for the advanced electronics buff.

Anybody read of Si's implementation of the FlySky in his loco?



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 Posted: Mon Dec 11th, 2017 08:59 pm
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Bernd
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Helmut wrote:
Anybody read of Si's implementation of the FlySky in his loco?









Did he ever finish it. I did see thread about it and that's what got me to buy a Fly-Sky.



 

Also I haven't seen him on in several days. What he do, take his toys and go home? 




 

Bernd



Last edited on Mon Dec 11th, 2017 09:03 pm by Bernd



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 Posted: Mon Dec 11th, 2017 10:14 pm
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Helmut
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Maybe he's busy to make up for lost time in RC conversion....



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 Posted: Sun Dec 31st, 2017 01:27 pm
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Helmut
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For those interested in that four-channel switch, here's the hex-code for an ATTiny13:
When the jumper is set, the unit is in learning mode and will determine the neutral pulse length once it is switched on and the TX and RX are working. The LED will come on as soon that is done. Then one depresses the F1..F4 buttons shortly, followed by a 1sec acknowledge of the LED, or longer till the LED starts to blink. So that function is either a momentary output or a permanent (toggling) one. Once the four functions are determined, pull the jumper and the unit is ready to operate.

Lest I forget -Happy New Year to everybody!
Now have to go to the yard and and steam up my loco, the boys want to go for a ride with fireworks and replica guns and what not...

Attachment: RC_Kanalschalter.zip (Downloaded 4 times)

Last edited on Sun Dec 31st, 2017 01:37 pm by Helmut



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