FrSky Taranis X9D + DSMX/DSM2 RF Module

  • gpanwar
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3 years 4 months ago #47 by gpanwar
Replied by gpanwar on topic FrSky Taranis X9D + DSMX/DSM2 RF Module
Thanks!

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3 years 4 months ago #46 by Evan
Replied by Evan on topic FrSky Taranis X9D + DSMX/DSM2 RF Module
Kool project. Definitely a project that would cause most members to run out of the room screaming and waiving their arms over their head! This is a fairly high level project with all the work you will need to do to get the module to work. I can help if you get stuck since I design circuits for a living.

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  • gpanwar
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3 years 4 months ago #45 by gpanwar
So after looking around a bunch for which transmitter to buy, I settled on the FRSKY Taranis X9D Plus. It uses openTX and has a bunch of add-on modules. I planned to buy this so I could get a DSMX/DSM2 module like this and be able to connect to BNF and other planes using DSMX or DSM2 receivers.

After looking more into this module in other forums like rcgroups, flitetest, etc. I found a bunch of posts referring to what John Prikkel did here .
For Eg: forum.flitetest.com/showthread.php?13829...DSMX-in-your-Taranis
and
www.rcgroups.com/forums/showthread.php?2...m2-reciever/page2#21

Apparently, there are a bunch of advantages to doing this including:

- the module uses a true digital protocol between the transmitter and module, not PPM and as such does not suffer from the high latency (delay in response). source

- supports Model Match and other Spektrum features source


This guy took the same John Prikkel board and extended it, using surface mount devices. I could order it from him, he currently charges $83 shipped for the whole module including the casing and everything. Everywhere else that people posted about the John Prikkel board, they have built it themselves and it works for them but they don't sell it. From what I found, Ivanc in rcgroups is the only guy making and selling these boards. I have been looking on ebay and other sites, the cheapest DX4e I could find was $45+shipping. And according to ivanc this is one of the reasons why he charges higher for a complete module because he ensures that the transmitter board from the donor DX4e/DX5e/DX6i works.

Ivanc already has really good documentation and directions for setting up the module so that part should be really easy too.

But I have a reflow oven and soldering station that I could use to solder surface mount devices(SMD) myself. So as an experiment and mostly for fun, i will design the board off of John Priikkel's design to use SMDs, similar to ivanc and assemble the add-on module. I've used oshpark before for ordering PCB's for my other projects so this should be fairly easy.

All parts needed but one are fairly easy to come by from online electronics retailers and other companies and John has already done all of the hard work of circuit design and analysis. The most elusive part will be the RF board from a DX4e/DX5e/DX6i.

Verdict: For now i'll order one module from ivanc to use myself since i am too impatient :lol: and I'll keep looking for a cheap DX4e/DX5e/DX6i tx to build the module myself too

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