BNF on Taranis with Spektrum DIY Module

[gtvrb]

I am having trouble binding a new bnf micro I just bought. I have the spektrum DIY module on the back of my taranis. I have several other bind and fly models that work fine on my taranis including two whoops several flite test planes and another bnf micro.
This one will not bind it just stays in the the blinking light searching function.
I tried to bind it to an old DX6i and it bound up no problem so it doesn't seem to be a problem with the plane itself. I have watched a couple of you tube videos to refresh my memory on how to make it work but no dice. Is there something else I should be looking at.?
Thanks
Robert

 

[Craftydan]

Which BNF is giving you trouble?

Happen to know what radio the module was harvested from? Was it DSMX capable (the early 5e radios are DSM2 only).

Not sure this is your problem, but Spektrum has been breaking the DSM2 backwards compatibility on some of their newer UMX's. If the module can't do DSMX, that brick won't bind to it.

 

[gtvrb]

I harvested the chip from a DX5e. It works with a bnf micro t28 and the inductrix. The plane I am now trying to bind it to is a bnf micro Sukhoi su26. Do you think that plane is too old? I thought I read somewhere the chip from the dx5 is the same as the one from the dx6 but I could be wrong.
Thanks

 

[Craftydan]

The 4e, 5e and 6i Transmit modules from the same generation are the same chip, but there was a version of the 5e that came out before DSMX . . . and from all I know, it's DSM2 only.

That being said, the micro Sukhoi isn't a new model, and "DSMX only" RXs is something HH has only started doing in the last year . . . so in that respect, it should bind just fine

 

[pressalltheknobs]

There are DSMX only DX5es made for the EU market I believe. If the module came from one of those then it won't work with DSM2 BNFs

According to this ...


http://www.horizonhobby.com/product...n-fly/ultra-micro-sukhoi-su-26xp-bnf-pkzu1080

it is a DSM2 model.

So the other possibility is that you did not choose the DSM2 option when you set up the external module in your Model setup. You have to choose the protocol with the Hack module so you have to choose the right one...at least that is my understanding.

 

[gtvrb]

I am pretty certain the chip is not the one with only one protocol. I have the radio set up exactly like my other bind and fly s with the external RF set at DSM2 DSMX.

 

[pressalltheknobs]

I am pretty certain the chip is not the one with only one protocol. I have the radio set up exactly like my other bind and fly s with the external RF set at DSM2 DSMX.

Then that's your problem. For that model you need it set to DSM2 DSM2.

The first value is the module interface name (not sure why they chose DSM2 - should be DSM- or something) The second selects the protocol the module sends...LP45, DSM2, DSMX...LP45 is DSM2 for modules harvested from the small BNF radios I think.

 

[gtvrb]

Tried setting it to dsm2 dsm2 with no luck. Still won't bind.

 

[gtvrb]

The guy at the hobby shop says the plane is too old to bind with the spektrum module. Not sure why it will bind with my dx6i and not with the module with a chip that is supposed to be the same.

 

[Grauwulf]

Pull the module from your DX6i and put it in your hack module if the tx module in your hack module is socketed. It will verify if the issue is your Taranks or the plane.

 

[gtvrb]

Is it worth pulling the chip from the dx6i? They are supposed to be the same chips. The dx6 has a bad pot on one of the gimbals so it isn't really useable but I don't want to tear into anything if I don't have to. Seems if it works in the other bind and flys work it is probably something to do with the plane.

 

[Grauwulf]

They are supposed to be, but I've had one that I pulled out of a DX4 that only did DSMX, similar to the problem you're having. If the DX6i has a bad gimbal, no great loss to tear it apart for the module.

 

[gtvrb]

Is there a way to visually inspect the chip and see if that is the problem? Serial #? I remember getting the chip out of the 5 was a pain in the butt.

 

[Craftydan]

The DX5e had the chip soldered in. The DX6i is socketed in. It pops right out. IIRC, it's 11 Philips screws, then unplug from the board and disconnect the antenna -- The hardest part getting the antenna off.

Make sure you ground any static before you touch anything inside, but the rest is pretty easy.

 

[gtvrb]

I put in the chip from the 6 and it seems to work fine now. Thanks a lot for all the help.