DragonOSD+V2 with RTH - Page 9 - RC Groups
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Mar 22, 2010, 11:15 AM
JettPilot's Avatar
The video Daniel posted was one of the scariest test flights I have had in a long time, I was lucky to just keep the plane under control, and not a great OSD video. I have videos of the new Dragon OSD that are better and stable after corrections were made to the flying wing, I will post one soon.

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Mar 22, 2010, 11:25 AM
Registered User
Hi Daniel, would your Dragon OSD+ in its present form be sending Telemetry data already?
Reason I'm asking is I'm wondering, if I wanted to use another device that sends telemetry in the video (read Dakar/Lynx antenna tracker), then if you are sending telemetry already then likely there would be a conflict.
That is of course if there was a setting in the OSD that turned off the Dragon telemetry (user choice) then there would be no conflict.

thanks Geoff
Mar 22, 2010, 11:30 AM
Registered User

Yes, it is currently sending telemetry but it uses only one line. As such it may not conflict if they're using a different line. If you have a problem, I can turn it off for you.

Mar 22, 2010, 11:42 AM
Registered User
JMSTECH's Avatar
It's Monday morning here is Canada and I feel like.... PARTYING!

Dragon OSD Plus now available for a limited time offer at this introductory price of 99 dollars!!!!

Please PM me your full name with mailing address so I can determin your shipping cost.

Sorry, 1 per person
Mar 22, 2010, 11:50 AM
MelihK's Avatar
Originally Posted by Daniel Wee

There are quite a number of options for 2.4GHz receivers. You can find some of the links here:-


There are some easy ways to multiplex the output of the receiver into a PPM stream with very little latency. If you really want an easy way (that is if your receiver cannot be modified), try this:-


Hi Daniel,

Yes i know this device type modifications, also I designed 8 channel servo In/Out board with rs232 control for making parallel channel control. I was asked for easy way like "solder a wire on your receiver". Because i cant say "buy a product for using my device's features" for my customers

Anyway, i will find a simple solution or redesign it for parallel input.

Mar 22, 2010, 01:19 PM
plus vite plus loins
Funjet2008's Avatar
h3..wmv (0 min 47 sec)
Mar 22, 2010, 10:55 PM
Registered User
JMSTECH's Avatar
Thanks again funjet for that perfect intro!!! It's still daylight here in my part of Canada so when the sun sets, so will this deal and then it's regular price which is still pretty cheap!
Mar 22, 2010, 10:56 PM
Suspended Account
cool video

really nice small osd

i like

It would be nice to order one with mah used sensor and gps

Originally Posted by Daniel Wee
The RTH works the same as for the original DragonOSD. The receiver should be programmed to activate the autopilot in failsafe mode. One of the channels of the receiver will be assigned this control task (as well as activating the in-flight menu). That control channel serves several purposes - activates menu, turns off all screen display, activates autopilot, or normal display mode - depending on the value of the channel. So you typically set the failsafe value for that channel so that it activates the autopilot. It does not directly detect loss of signal since different radios have different loss of signal conditions.

Because of this, you can either manually activate autopilot or have it activated via a failsafe condition. In my usage, I normally assign the autopilot to one position on a three-way switch on the radio. With that switch I can either activate menu, failsafe, or normal mode.

The DragonOSD has two assignable control channels. This means that you can select which two servo channels you want it to control. For example, you can have it control the rudder and the elevator, in which case you will have altitude control and steering. Or you can have it control two ailerons, in which case you don't have elevator control for altitude management. You could one channel to throttle as well but I have not implemented throttle management algorithm for now. So, basically, you can pick any two channels to be controlled.

Apart from this assignability, the autopilot operation would be identical to that of the original DragonOSD.

As for a video - take a look at Jettpilot's Zephyr thread - there's a video in there which shows the OSD in operation:-
FPV Plane FPV (3 min 48 sec)

Mar 22, 2010, 11:35 PM
Registered User
JMSTECH's Avatar
Times up and the $99 deal is over. Thanks again to all those who were fast and managed to get one at this great low price!!! A large portion has already left and I watched the truck pull away from the Canada Post office which is across the street from my shop.... and on it's way to your door!

Mar 23, 2010, 02:43 AM
Registered User
CrashingDutchman's Avatar
Thank you John, I am so looking forward to start using this!
Mar 23, 2010, 01:48 PM
Registered User
Thanks for the support and faith guys. Most of your OSD's should be on the way or soon to be on the way. If anyone of you are seriously interested but for one reason or another missed the offer, don't be afraid to ask - we're here for the community. But ask soon.

Mar 23, 2010, 02:07 PM
JettPilot's Avatar
The Dragon OSD does have the MAH used and ampmeter reading. Being that it was the first flight of a brand new plane, I was excited to try it and did not put in any current sensor yet. But I am glad I flew it quickly, I had a blast

Mar 23, 2010, 02:56 PM
Registered User
JMSTECH's Avatar
Originally Posted by CrashingDutchman
Thank you John, I am so looking forward to start using this!
No need for thanks.. just show me that smile at the end of your flight and that's rewarding to me!
Mar 23, 2010, 04:45 PM
Registered User
barok's Avatar
my first osd.. smile already
Mar 24, 2010, 06:38 AM
Fly the Discombooberator!
magnetman's Avatar
thats great to know! I love my old Dragon OSD and haven't flown it for a while cos of a crash. This was due to the fact it was doing an RTH on autopilot and went unstable, slow - spiralling into the ground about 1KM away. I think maybe my 35 MHz was out of range I could not recover it.

IMU would fix that so very much lookin forward to developments, not interested in the thermopile option.

Airframe is written off but all the electronics OK if anyone wants an Old Dragon+Current sensor+temp sensor +GPS.

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