Turnigy x9 Receiver Hack

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Turnigy x9 Receiver Hack

Postby obithereal » Mon Sep 06, 2010 7:27 pm

Hi,
today i recieved my Turnigy 9x Radio vom HK.
I wont to use it with my quadrocopter, but i need a PPM Signal out of the receiver.

Did you know how can i get the signal from the receiver?
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Re: Turnigy x9 Receiver Hack

Postby RCModelReviews » Mon Sep 06, 2010 10:17 pm

No, to the best of my knowledge there is no PPM stream accessible on the 9X receiver. This is true of most 2.4GHz receivers because they don't have a PPM stream as such.

At the transmitter end, each channel's position is sent as a binary number that is then received and turned into an individual pulse-width for the associated channel. There is no need to have all the channel pulses strung together into a PPM stream -- so it doesn't happen.

The only way to get a PPM stream is to add a small circuit that takes each pulse from the receiver and then creates an output that is in PPM format. This is fairly simple to do but will add extra latency.
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Re: Turnigy x9 Receiver Hack

Postby obithereal » Mon Sep 06, 2010 10:26 pm

does an other receiver work well with the Turnigy Transmitter?
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Re: Turnigy x9 Receiver Hack

Postby RCModelReviews » Tue Sep 07, 2010 1:10 am

Unfortunately no
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Re: Turnigy x9 Receiver Hack

Postby pwy » Tue Sep 07, 2010 2:24 am

The only way I know of is to use a small hardware board which creates the PPM stream out of the single servo signals.
This should work with any receiver.
See here https://www.mikrocontroller.com/index.p ... eef3a9221e
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