Rembizi OSD on APM?
Hi folks,
I'm interested in trying to connect a Rembizi OSD to my APM. I've searched both forums and the code, but I can't find any hint that this has been implemented yet. I haven't read through the hundreds of posts in the rcgroups thread, though. I'd love to be proven wrong. :) Assuming I'm the first, I looked at this post by Blake Krone about integrating Rembizi into the ArduPilot code:
http://diydrones.com/profiles/blogs/integrating-remzibi-osd-amp
Let's pretend for a moment that I'm crazy enough to try something similar for the current APM code. I know I'd need to use the FastSerial code. Just like Blake, I'm using a UBlox GPS, so I assume I should examine the date code in the UBLOX class in case similar changes are needed. There are two parts where I'm utterly clueless, though: which pins I should use for connecting my APM to the Rembizi board, and (if not obvious from the first part) which serial port I should use in the code. In case it's relevant, I have an Xbee connected and I plan to add on the airspeed sensor and the magnetometer (once it's available). I think I'll have my own little Medusa when I'm done. :)
Any help or suggestions would be appreciated. I'll be happy to share my resulting code.
Mark
I'm interested in trying to connect a Rembizi OSD to my APM. I've searched both forums and the code, but I can't find any hint that this has been implemented yet. I haven't read through the hundreds of posts in the rcgroups thread, though. I'd love to be proven wrong. :) Assuming I'm the first, I looked at this post by Blake Krone about integrating Rembizi into the ArduPilot code:
http://diydrones.com/profiles/blogs/integrating-remzibi-osd-amp
Let's pretend for a moment that I'm crazy enough to try something similar for the current APM code. I know I'd need to use the FastSerial code. Just like Blake, I'm using a UBlox GPS, so I assume I should examine the date code in the UBLOX class in case similar changes are needed. There are two parts where I'm utterly clueless, though: which pins I should use for connecting my APM to the Rembizi board, and (if not obvious from the first part) which serial port I should use in the code. In case it's relevant, I have an Xbee connected and I plan to add on the airspeed sensor and the magnetometer (once it's available). I think I'll have my own little Medusa when I'm done. :)
Any help or suggestions would be appreciated. I'll be happy to share my resulting code.
Mark
Replies to This Discussion
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Permalink Reply by Matthias Badaire on -
Blake,
did you manage to find a way to connect a serial on the APM. Are you going to integrate this into SVN ?
Thx
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Permalink Reply by Blake Krone on -
I am still working on trying with the GPS port next, plus I'm finishing up some of the date/time stuff.
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Permalink Reply by Ed Stewart on -
Thanks for all your time and efforts, mainly a hardware guy here. I know it's the glue that hold it together but all that code stuff makes my head swim.
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Permalink Reply by Andrew Radford on
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Sorry to hijack the thread with a noob question - but what specific advantages are there to connecting the OSD to the APM rather than just 'T'ing the GPS to both the OSD and the APM? Artificial horizon from the Giros? Information about waypoints etc? More precise altitude from the baro?
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Permalink Reply by Ed Stewart on
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It's not quite like 'T'ing into a pipe to share the data, there is a bit of 2 way communication going on with the GPS. To my understanding the advantages would be having to buy only one GPS and sharing the digital information from the APM and the graphical information from the Rembizi all on one OSD.
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Permalink Reply by Toby Mills on -
Stupid question maybe. But why does the data need to get added to the video stream on the airside. Why not transmit the video raw and put the osd on the output of the video receiver. Perhaps you could feed the osd data from a serial output from the apm planner or arustation etc. The less gear that is airside the better both for weight and risk. Is any data that is required for osd that is not transmitted over mavlink?
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