FrSky 2.4 module in 3VC

[john333]

Hi everyone,
I've just ordered a FrSky module and receiver from Giantcod, and was wondering if anyone else has fitted one to a Futaba 3VC?

Not had it yet so can't read the instructions but apparently it's just a case of soldering 3 wires (pos, neg and PPM feed)

My question is where will I find the PPM feed in my transmitter?

[knighthawk]

I was thinking of this for converting my two lads to 2.4
as they both have the 3VC TX's

Just went onto the FrSky website and downloaded the manual
and its basically plug n play like the Futaba 2.4 units

All you have to do is make sure the TX is in PPM mode which is in the
menus under MOD ( either PPM or PCM )

http://www.frsky-rc.com/uploadfile/201010/20101019145903307.pdf

What units did you buy ?

[john333]

Hi, Can't put my fingers on the unit part numbers I ordered, but it is the "hack" module ie the one that goes inside the tranny rather than the plug in box. It appears to be hard wired into the tranny

[knighthawk]

http://www.frsky-rc.com/uploadfile/201010/20101011122214895.pdf

This one then

[john333]

Thanks nighthawk, much obliged ;-)

[rondoolaa]

hi,

if you want 2.4 in a 3vc or 3vcs you cant go cheaper than this,

i have these in both my 3vcs's and purchased extras so i can use the recievers in my other cars and have spare transmitter modules....

http://www.ebay.co.uk/itm/Corona-RC-Model-CT3F-2-4GHz-R-C-Hobby-RF-Module-CR3D-RC-Receiver-RS832-/250998131006?pt=AU_Toys_Hobbies_Radio_Controlled_V ehicles&hash=item3a70a7893e

[john333]

hi,

if you want 2.4 in a 3vc or 3vcs you cant go cheaper than this,

i have these in both my 3vcs's and purchased extras so i can use the recievers in my other cars and have spare transmitter modules....

http://www.ebay.co.uk/itm/Corona-RC-Model-CT3F-2-4GHz-R-C-Hobby-RF-Module-CR3D-RC-Receiver-RS832-/250998131006?pt=AU_Toys_Hobbies_Radio_Controlled_V ehicles&hash=item3a70a7893e

Thanks, but FrSky is ordered now, and it was £25 delivered so not too bad :thumbsup:

yours is plug and play though so definitely a good buy for someone else!

[Funkymojo]

I'm using the FrSky 2.4GHz module and receiver on my Futaba 3VC and it works great. Mine has Telemetry function, got it from Hobbyking. It's really value for money. There are 2 models, the older model doesn't have telemetry while the newer model has. I've used Corona and Assan 2.4GHz modules in the past and Frsky is the best. Check it out...

FrSky FF-1 2.4GHz Combo Pack For Futaba Without Telemetry (http://www.hobbyking.com/hobbyking/store/__14348__FrSky_FF_1_2_4Ghz_Combo_Pack_for_Futaba_w _Module_RX.html)

FrSky DF 2.4GHz Combo Pack For Futaba With Telemetry (http://www.hobbyking.com/hobbyking/store/__14354__FrSky_DF_2_4Ghz_Combo_Pack_for_Futaba_w_M odule_RX.html)

[knighthawk]

the only problem with these 2.4 systems are the receivers
they rx leads plug in the side and not the top like the real 2.4 units and make wiring a nightmare !

FrSky do a 4 chanell RX thats smaller the the Futaba unit
see:
http://www.hobbyking.com/hobbyking/store/__19626__FrSky_TFR4_4ch_2_4Ghz_Surface_Air_Receive r_FASST_Compatible.html

Which FrSky TX Module will work with this RX ?

[Funkymojo]

the only problem with these 2.4 systems are the receivers
they rx leads plug in the side and not the top like the real 2.4 units and make wiring a nightmare !

FrSky do a 4 chanell RX thats smaller the the Futaba unit
see:
http://www.hobbyking.com/hobbyking/store/__19626__FrSky_TFR4_4ch_2_4Ghz_Surface_Air_Receive r_FASST_Compatible.html

Which FrSky TX Module will work with this RX ?

I've not seen anyone using this 4 channel RX with their FrSky module, including myself. But i have seen a couple of my buddies using this same RX on their Futaba 4PK/4PKS instead of the original Futaba FASST RX and it works perfectly...

[knighthawk]

I've not seen anyone using this 4 channel RX with their FrSky module, including myself. But i have seen a couple of my buddies using this same RX on their Futaba 4PK/4PKS instead of the original Futaba FASST RX and it works perfectly...
Yeah I know a couple of peeps have bought this RX with the Futaba TX Module and report it works great for the price

Just wondered if FrSky done a TX Module themselves as the Futaba one is £100 on its own !

[john333]

http://www.giantcod.co.uk/frsky-v8ft-24ghz-futaba-module-only-version-p-405313.html

try this someone on giantcod forum just sent it me. they out of stock at mo, but only £12!!!!!

[john333]

And I now know where to wire the hack unit in so will be doing that as soon as it arrives. I'll post up how it goes.

[Cardnim]

Keep us updated John. Im doing this to all the older 40Mhz KO and Sanwa radios now and so far its flawless.

re: Corona system. Old DSSS tech, prone to interference issues and not built particularly well. Thats just what Ive heard; I personally have no experience with them.

re: FrSky 4CH wiring. The reciever is definately low budget (its wrapped in cardboard!) but it is pretty good. The wiring isnt too big a problem, but it does give the RX a bigger footprint.
You can remove the cardboard should you wish.
You also have to poke a little hole through the outer casing in order to have access to the BIND button. I done this with a fine tip soldering iron - melted a neat hole through the plastic "window" in the cardboard sleeve.

Re: FrSky "hack" module - John, you should be fine getting it from Giant Cod as they only use the new stock, but for anyhone else - just ensure that your PPM wire has a diode on the end. This was added recently to the new batch coming from China to elimnate a bug where current was coming back up the PPM wire and frying your 2.4Ghz module. If it doesnt have the diode, the FrSky website has details of the diode rating and type which you can get from Maplin / RS / etc for a few pence. WELL WORTH DOING!

hth. :)

[john333]

helps a lot, thanks ;-) can't wait to see my new cardboard receiver! lol.

I'm going to fit my new module into an old module case I've got knocking about, so hopefully it's going to look completely standard

[Cardnim]

I'm going to fit my new module into an old module case I've got knocking about, so hopefully it's going to look completely standard

Yeah, thats the way I do it too, only thing is you need to make the module case very secure, because if it is pulled out, either by you if you forget a year down the line, or if you sell it on - then you rip the FrSky module out by the short and curly's :o:o:woot: heheh
Havent quite figured out the best way to stop this. DOnt like the idea of gluing in the module, so at the moment, it just has a safety sticker over it saying "Dont remove" :confused:

[john333]

If you look on the giantcod forum they are using some kind of multiplug/socket that fits onto the transmitter pins, so it's still removable

[Funkymojo]

Don't get the Corona, seen many having interference issues and the quality is not too good. Assan is pretty good but the best is still FrSky...

[john333]

Frsky bits came this morning, spent a couple of hours installing it and it works perfect on the bench ;-) wont be able to race test it till my new car arrives, but I'm sure it will work great.

Hard wired it to the module board in the end as it was too cramped to try and fit the new module into an empty Futaba case I had knocking about.

The receiver is tiny! and the aerial is only about an inch long so I wont need an aerial tube which is nice.

It is also equipped with a failsafe which can be programmed however you want it. Binding was a breeze.

[Cardnim]

Glad you got it sorted John - told you it was good! :thumbsup:

For what its worth, I was suspicious about the aerial cable being so short, plus it was near my sensor and ESC/RX cable. However, the FrSky system also comes with a really nifty "range test" feature, and using this, my car literally went so far away that I had to stop simply because I couldnt see it properly! (and thats on low range mode)

So now, no aerial sticking out of my buggy, and the RX aerial cable is tie-wrapped onto the ESC/RX lead with no interference whatsoever.

What an amazing piece of kit for £25 all in!! :thumbsup: :thumbsup: :thumbsup:

[john333]

:D:D can't wait to give it a go! :D:D

It's amazing for £25 but obviously a steady hand and some very basic knowledge of electrics and soldering is needed :thumbsup:

The best thing about my install is that I've got the tranny aerial poking out the top of the tranny (where it should be!) rather than on the back of the module.

All in all an excellent piece of kit :thumbsup::thumbsup:

[Cardnim]

It's amazing for £25 but obviously a steady hand and some very basic knowledge of electrics and soldering is needed

It isnt a difficult task as you say, but if anyone prefers it done for them, Im offering this service for £45 all in - thats me buying all the materials, doing the work, quality checking, testing, and then sending back the converted TX and brand new in packet receiver all ready to go.

PM me if anyone is interested.

(yes, I do indulge in shameless self promotion... sorry!) :blush: :lol:

[dodgydiy]

i bought the frsky plug in module for something like £13 rather than the hack module, lazy i guess!

[john333]

Not in stock at the mo or I would have too! lol

[Cardnim]

yuk. and have an aerial sticking on the back of the transmitter (so it gets snapped off and probably has to sit pointing down as the Esprit 3 modules do)... and then an extra defunct aerial on top doing nothing? :thumbdown:
I also dont think it works with the Esprit 2 as this is a "slide in" type module which goes right inside the TX.

[john333]

yuk. and have an aerial sticking on the back of the transmitter (so it gets snapped off and probably has to sit pointing down as the Esprit 3 modules do)... and then an extra defunct aerial on top doing nothing? :thumbdown:
I also dont think it works with the Esprit 2 as this is a "slide in" type module which goes right inside the TX.

Good point well made lol :lol:

[wrighty]

Im gona do this with my 3vc have had problems with spektrum stuff and all i read i good results the only thing im not sure which is the ppm wire on the tranny any help would be excellent

james

[JCJC]

Some pin out's on the FrSky (http://www.frsky-rc.com/uploadfile/201201/20120103190156120.pdf) site, they may also respond to questions. Most of the info applies to multichannel flight transmitters (with american model numbers) - but may be of help to you (thats my disclaimer:woot:).

[john333]

Im gona do this with my 3vc have had problems with spektrum stuff and all i read i good results the only thing im not sure which is the ppm wire on the tranny any help would be excellent

james

go onto the Giant cod forum on their website, nearly at the bottom is a thread called RC guides. Look for the one about using Frsky as a hack module, and in there you will find some photos of which to use, that's what I did and it worked perfect (it shows you a Futaba module with the pins marked PPM, + and -)

I soldered onto the back of where the pins are :thumbsup:

[john333]

There's not much room to mount the button and LED board inside the tranny though so I mounted it inside my old 40 meg module case.

Let me know if you have any problems and I'll put some photos up

[knighthawk]

I to am very tempted to do this for my sons 3VC TX, but would rather put this into the RF Module box so i can be removed at a meeting if there's ever a problem

[john333]

I was going to do that but it wouldn't quite fit, I found it too tight with the wires etc

[billyboy9002]

I've just bought a esprit 2 off eBay for £35 and ordered the hack module and 2 receivers. I'm going to follow cardnims instructions :) fingers crossed it goes ok :)

[john333]

I've just bought a esprit 2 off eBay for £35 and ordered the hack module and 2 receivers. I'm going to follow cardnims instructions :) fingers crossed it goes ok :)

You'll have no problems with it I'm sure :thumbsup: his instructions are very good

[billyboy9002]

Cheers John. Just realised its in the wrong thread. Sorry boys

[Cardnim]

You'll have no problems with it I'm sure :thumbsup: his instructions are very good

:wub

Any probs mate, give me a shout. :thumbsup:

[billyboy9002]

Cheers. Hopefully I should have it by the weekend :thumbsup:

[Rootz]

Eagerly awaiting my FrSky kit from HobbyKing. They seem to have a good range of FrSky and decent stock of most lines...

http://www.hobbyking.com/hobbyking/store/__402__190__Tx_Rx_Systems_Parts-2_4Ghz_FrSky_ACCST.html

Cheerz!

Rootz

[Cardnim]

Eagerly awaiting my FrSky kit from HobbyKing. They seem to have a good range of FrSky and decent stock of most lines...

http://www.hobbyking.com/hobbyking/store/__402__190__Tx_Rx_Systems_Parts-2_4Ghz_FrSky_ACCST.html

Cheerz!

Rootz

Giant Cod are cheaper, have them in stock, and are local.
I usually get all my deliveries from them the very next day. :thumbsup: