Spektrum DX Tx hacking?

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13 Jan 2017 13:53 #57889 by mwm
Spektrum DX Tx hacking? was created by mwm
The new Spektrum Dx transmitters have user upgradeable firmware, which means they are susceptible to hacking ala the Devo and TH9X transmitters.

Anyone opened one up to see what's in them yet?

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13 Jan 2017 14:20 - 13 Jan 2017 14:22 #57891 by vlad_vy
Replied by vlad_vy on topic Spektrum DX Tx hacking?
Not very cheap alternative (to Devo 7e???) $150.

Last edit: 13 Jan 2017 14:22 by vlad_vy.

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13 Jan 2017 15:58 - 13 Jan 2017 15:59 #57895 by HappyHarry
Replied by HappyHarry on topic Spektrum DX Tx hacking?
yeah even at $110 which is the cheapest I can find it's still twice the cost of a 7e, but in it's defence it does come with 7 switches as stock, (which I think 6 are 3way and 1 2way) and is also a full power tx (though with the 4in1 module now being available that's not much of an issue nowadays)

the main issue I see is that there's only 5 gui input switches, rotory press, rotory left/right, clear and back, I think that's maybe similar to the at9, and look at the issues that caused when the changes were made in the code to try and accommodate that :/
Last edit: 13 Jan 2017 15:59 by HappyHarry.

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13 Jan 2017 16:04 #57896 by vlad_vy
Replied by vlad_vy on topic Spektrum DX Tx hacking?
With Spektrum transmitters we can get the same problem as with Taranis X9D -> no SPI bus. Spektrum RF modules managed by serial protocol.

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15 Jan 2017 14:06 - 15 Jan 2017 15:48 #57976 by vlad_vy
Replied by vlad_vy on topic Spektrum DX Tx hacking?
Spektrum BRWDAMTX11 (DX8) and BRWDAMTX12 (DX9) RF module pinout:

1 GND Module Ground
2 VCE Power control monitoring
3 VIN Module DC Power
4 P21 Baseband CPU digital port P2.1
5 P33 Baseband CPU digital port P3.3
6 P17 Baseband CPU digital port P1.7
7 P32 Baseband CPU digital port P3.2
8 GND Module Ground
9 P30 Baseband CPU digital port P3.0
10 XRES Baseband CPU reset input
11 P11 Baseband CPU digital port P1.1
12 P10 Baseband CPU digital port P1.0
Last edit: 15 Jan 2017 15:48 by vlad_vy.

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18 Jan 2017 23:48 #58149 by victzh
Replied by victzh on topic Spektrum DX Tx hacking?
This one is new 6e with upgradeable firmware. Who knows what other changes they implemented? SPI module is cheaper because you can offload protocol implementation to the main MCU, maybe they tried to save money and produced hackable TX :-)

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19 Jan 2017 04:42 #58164 by vlad_vy
Replied by vlad_vy on topic Spektrum DX Tx hacking?
It looks like all Spektrum transmitters with telemetry support have RF module with SPI bus.

Also, they have voice alerts, starting from DX6G3.

Full set of features:
www.spektrumrc.com/Content/Media/PDF/SPM...itter_Comparison.pdf

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