Replies to This Discussion

Permalink Reply by basshead on September 30, 2011 at 8:38pm

How would you install this? Would you need xbee installed into the 9x?

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Permalink Reply by Allan Harley on September 30, 2011 at 9:33pm

like wise is there some info on modding the radio please as i think its great

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Permalink Reply by Gerard Valade on October 1, 2011 at 7:14am

 If you never flash this radio you can find all documentations on er9x project found here :

modding your radio and flashing

http://code.google.com/p/er9x/

or you can find a Solderless Pogo board

 

for flashing I would recommanded to install eepe :

http://code.google.com/p/eepe/

 

For the transmission you'll need a wireless RS232 high speed datalink, you can use xbee

but in europe I cannot use 900Mz and you mus modfify like for FRSKY project

http://code.google.com/p/gruvin9x/wiki/FlashGuide 

 

My radio:

 

Due to the ATMEGA64 we approach the maximum memory, and in my version of gv9x-mavlink I remove the splashscreen,
the helicopter option (all mixing is done in ArduCopter)
and displays statistics

the binary is here :

http://code.google.com/p/gv9x/downloads/list

 

Next time, I have to explain how to set the rotary switch.

Tell me if you have problems. 

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Permalink Reply by Allan Harley on December 27, 2011 at 12:10am

has anyone been able to fit a xbee to the radio if so can they please give me some info on it please

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Permalink Reply by Gerard Valade on December 27, 2011 at 4:10am

Sorry I never try xbee, but take a look at this post:

http://diydrones.ning.com/forum/topics/alternate-transmitter-telmet...

I used a KYL210 433Mhz RF module with a MAX232 converter that I found on ebay.

 

If you want to use my firmware,

I must release a new version because they are some problem with 'Arducopter v2.1.1 alpha' (systemid was 7 and now they can be change by parameter).

 

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Permalink Reply by Gerard Valade on January 22, 2012 at 5:09am

In my case I wanted a light Ground Station that could help me to change the setting of PID outside of my house, that's why I needed an uplink.
After I added some more display to see when APM and the GPS was ready, but this function could pass through the downlink of FRSKY, but it must change the APM software.

I also add the change of the flight control by PPM or via the MAVLINK.

I plan to add one function if I had enough memory in the TGY like memorize way point. Example : put your model at location 1 and with the transmitter send MAVLINK CMD to memorize this location and so for location 2.

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Permalink Reply by dudz on February 26, 2012 at 3:10pm

Please forgive my lack of Knowledge here.....I have a T9x transmitter V2. I am going to use the APM2 board when it is available . 

Surely if I install the Frsky tx and rx with telemetry, I will Not need Xbee to send back data such as voltage or gps location ?

Sorry if this has been mentioned in a different context. I am still trying to take it all in ! ....electronics is second nature but as for software / code ect... I am lost.

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Permalink Reply by dudz on February 26, 2012 at 3:47pm

I'm only hoping for batt voltage/GPS location data (live) to be sent back to the radio  . But would it need additional sensors with the rx? or just plug the APM2 sensor pinouts to the rx for transmitting back to the radio ?

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Permalink Reply by Earl on February 26, 2012 at 6:35pm

Ya know, we should update my work to do the mavlink protocol. My ardupilot display was for old ascii data. I will be glad to help to change to mavlink, in fact I'd be delighted !

Earl

Permalink Reply by Earl on February 26, 2012 at 10:40pm

ok sounds good, but remember I am going to school here in NM...UNM for astrophysicist so time is limited sometimes. Trying to keep my 4.16 GPA so far. A little hard at 65 yo. but I am gonna show them young wipper snappers !

Earl

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Permalink Reply by Joel Venable on March 28, 2012 at 12:42pm

Who says we don't have an uplink?  Couldn't we use the raw data encoded into a PPM channel to send data to the APM?  It would require "translation" code in the APM firmware to accomplish this, but I'm seeing the bigger picture... 

• 9x with FrSky could be a standalone setup with PID tuning & save waypoint capability using your firmware.
• Add bluetooth on the 9x, and then design smartphone GCS station.
• USB connection (or bluetooth as above) from 9x (Smartieparts board?) to laptop in the field, for on the fly updates.
• PC-based PPM encoder to FrSky directly.  You could then fly exclusively via joystick and not need a TX at all.  This capability exists already, just with the more expensive Xbee link. 

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