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Re: [Paparazzi-devel] Apogee RC not Working Properly

From: Gautier Hattenberger
Subject: Re: [Paparazzi-devel] Apogee RC not Working Properly
Date: Wed, 2 Mar 2016 23:59:32 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1


It is strange that PPM signal produce a slow servo reaction, you should give us more information like the version of paparazzi, the type of receiver you are using...

About the direct spektrum, I have never really used it on Apogee, but it works correctly on other boards running Paparazzi. As said on the wiki, the bind pin is AUX4 and it should be grounded while powering the board. But due to the integrated inverter used to read the Futaba SBUS format, you actually need to connect both PPM_IN and RX2 to the spektrum receiver. The PPM_IN is then used to generate the binding signal for the receiver. Seems this part was not properly documented on the wiki.


Le 02/03/2016 00:29, Pengzhi Tian a écrit :
Hello everyone,

I am currently working on an Apogee board, however I couldn't get RC working
properly. I am using a Spektrum DX7s transmitter. As you might already know,
Apogee can take both ppm signal or Spektrum directly. I tried both, however,
none of these seem to work properly. The problem with ppm signal in is that
servos response really slow. With Spektrum directly in, servos could work
normally sometimes, but it's on and off, doesn't seem to be consistent. I
already checked all connections and tested on two brand new Apogee boards.
Looks like this problem is always there. Can anyone tell me where the
problem comes from or any suggestions?

Another question, when connect Specktrum receiver directly to Apogee board
through R/C RX2, what is the correct way to bind the transmitter? I noticed
on the paparazzi wiki it says on Apogee board AUX4 is also spektrum bind
pin. Is it similar with Lisa board that I should connect AUX4 to GND?



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