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jonpet55

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About jonpet55

  • Rank
    RC-Cam'er
  • Birthday 09/19/1988

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  • Website URL
    http://skagmo.com
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Profile Information

  • Location
    Asker, Norway
  • Interests
    - Ham radio<br> - Electronics<br> - R/C (FPV)<br> - Music production<br> - Spaceflights
  1. The dimensions of the board is 9x5cm - weight is still unknown. Vova says the board will have full waypoint capabilities before the end of july. The variometer is only based on GPS readings. A GPS is pretty accurate on relative vertical movement, but not absolute. As said, there is no AHI. Optional sensors has not been announced, and will most probably never be.
  2. eickst: I would have said the same as you a month ago. Sorry to say I don't have that opinion anymore. I ordered a pan/tilt kit for my TSII which I've been waiting for allmost 3.5 weeks. Still haven't got it, and vova doesn't respond. I guess it will be worse after the release of this OSD. Terry: The number of commercial OSD-solutions has exploded the last few years, so yes, I'll guess the prices will fall.
  3. Well, I was expecting someone would mention that. At first I'll say I wouldn't have done this with a bigger plane, and the only reason I did it was because I find the plane pretty harmless. It is a very slow and lightweight plane, but I can agree it was a little bit on the edge if I knew I was going to get these problems - which was not expected at all. My future plans is to make a rudder-home system, so this would probably not happen again. I will also fly in the opposite direction, which is over a forest.
  4. I have just finished my new ground station. I found out it was much better controlling the plane from my room due to multiple reasons: - I don't have to carry all my gear to the field - I can use monitors instead of googles - the sun shining into the monitor is no longer a problem - I can sit on my chair - much better comfort Enough talking, here is some pictures: http://jonpet55.latestdot.net/projects/con...anel/index.html http://jonpet55.latestdot.net/projects/ant...anel/index.html For more information, look at http://skagmo.com/fpv.htm This is my latest video. This flight was really nerve-wrecking! http://vimeo.com/1116326 The TSII will be a much more stable platform with pan/tilt and a CPD4 for extra stabilisation. Hope you like it!
  5. Rangevideo has just released their first OSD-solution. This one looks really good - with autopilot as well. I think this will be a hard competitor for the Dragon OSD! http://www.rangevideo.com/index.php?main_p...products_id=135
  6. I'll try to make the tracker before the the season ends. BTW the weather is just perfect here. I haven't seen a cloud in about a week. Now it's 18°C in the sun (9°C in the shadow), and allmost no wind - perfect weather for flying! I've heard the rain is coming again tomorrow though.
  7. Haha. You sure haven't forgotten that antenna tracker. But you are absolutely right, the tracker was actually the reason I started this project, so I should start on it pretty soon - just don't know when. At least I need to fly the TSII in FPV and mount the gear in the plane, then I can start thinking about the ground station.
  8. Thanks headhunter23 I flew the plane today as well and it was easier this time, probably due to less wind, less nerves and a better pilot. The plane didn't fly as fast today. Just the right speed for me. Last time it was actually pretty windy (today it wasn't any wind at all), so thats the reason why I got the extra speed. I was pretty close on crashing today. The problem was that I flew the plane a little too long, and suddenly one of the ESC's cut off due to low battery voltage. I couldn't see that one of the propellers had stopped, so I didn't understand why the plane started to drift to one side. I gave full throttle to compensate for the lack of thrust, and came _very_ close to a tree. A moment later I realised what the problem was, cut of the throttle, throttled up again and landed. In other words still no damage...
  9. WOW! I just flew the TS2 for the first time, and it was insane! I'd never imagined it was so fast and responsive. Lucky for me the kids in the area had just left, so I was alone when I started flying. I threw it into the air with full throttle, and wasn't prepared for the speed at all. I also had way too much response, but didn't dare to look down on the DX7 for the D/R-switches. I tried to think where the switches was located (just switched to the DX7, so I'm not used to the radio yet) and steer the plane at the same time. After a few seconds I remembered, and enabled D/R on ailerons and elevator, giving 50% travel. It got easier to control, but still not what I would call easy. After getting a little more confident with the plane I flew it over a larger area with more altitude. I also discovered that about 15-20% throttle is enough for level flight, so I was applying much more throttle than needed. I tried to fly the plane low with little throttle, and then with full throttle and elevator. It flew vertical at incredible speed, becoming a little dot on the sky after a few seconds. I landed it perfectly some minutes later, using flaperons. When I applied full flaperons it stopped like a car. It was incredible to watch. I had to apply lots of elevator up to keep it level though, so I'll try to add some elevator to the flaperon-mixing. After landing I discovered 10-15 people were standing right behind me watching me flying, and I hadn't even noticed... I think I've got to fly the plane a few more times before adding FPV-gear, because this wasn't at all what I expected... Very fun to fly though, and the plane is still in perfect condition!
  10. I tried to test the gear yesterday. I put it all in a Java 150 electric glider, but the thing dropped like a rock... The motor was way too small anyway, so I've ordered a motor giving more than twice the thrust. Hopefully I will maiden the TSII very soon as well. Have to wait till I get some grass to land on (the snow has just melted away).
  11. I haven't visited the thread for a while, so sorry for my late reply. Philtyy; Thank you for the kind words! The software for the OSD and the other stuff is now more or less finished. In the video below I use a cheap 2.4GHz transmitter - not the one in the picture. Check out a video of the first OSD-test here. A picture of the completed FPV stuff:
  12. I've added some pictures of the 23cm TX. Check the bottom of the first post.
  13. Thank you for the comments. Rking: The OSD is made by me, so it is not a commercial solution. Mr. RC-Cam: I have tested the 23cm TX with both the GPS and the AR7000. The TX is much more high quality than Lawnmate transmitters etc., so there is almost no harmonics. I was expecting the TX to block out the GPS though, but testing shows that the signal is just slightly reduced even when the transmitter is 2-3cm close. I guess I can thank the saw-filter on the GPS for that (EM-411 has a saw-filter right?). The AR7000 also performs very well close to the transmitter, but to be sure I bought a 36" extension cable for the remote receiver, so it is now located at the tail, while the 23cm TX antenna is on the nose. Almost 1m separation.
  14. A while ago I decided to build a TwinStar II for FPV use. The plane is not ready to fly yet, but I hope to get it ready within a week. Actually the only thing missing is 30cm silicon wire for the left motor (I made 5 out of 6 cables, and went out of wire). The paintjob is done with black and silver acrylic spray paint. It will be equipped with the following gear: - AR7000 2.4GHz diversity R/C receiver - 4 x Hitec HS-81 - 2 x Turnigy 2213 20-turn brushless motor - 2 x TowerPro w25A ESC - 3A UBEC - 2 x Aluminium spinner - 2 x 9x6 APC propeller - 11.1V 4000mAh LiPo And the following FPV-equipment: - KX131 video camera - 1.3GHz (23cm) 1W video transmitter with a four radial GP-antenna - Totally custom OSD based on the BOB-4 video overlay board - EM-411 SiRFStar III GPS - TinyTrak 3 - 3A 5V switch mode regulator As said, the OSD uses a BOB-4 module for video overlay. I originally controlled the BOB-4 with a PIC16F88, but the increasing amount of float variable calculations and other demanding operations forced me to upgrade to a PIC18F1320. More technical information about the OSD will come later. It is now fully working (not as seen in picure 16 on the OSD-page below). The TinyTrak 3 is used to transmit lat./lon. and altitude to the ground station to calculate azimuth and elevation angles for the receiver antenna. I will proceed the development of this system as soon as the basic FPV/OSD system runs satisfiable. The AX.25 decoding on the ground is done with a PIC16F88, and the trigonometrical calculations is done with a PIC18F1320. The plane so far: The FPV-stuff so far: More pictures: http://skagmo.com/projects/TSIIOSD http://skagmo.com/projects/TSIIbuildingprogress http://skagmo.com/projects/TSIIvideoTX/
  15. jonpet55

    A high altitude ballon project: EOS1

    Thank you! Hehe, yes. I was expecting more problems than I actually got. The hour between LOS (video transmitter got out of range), and AOS (the cell phone was low enough to connect to a base-station), made me extremely nervous... The descent was calculated to take about half an hour, but because the ropes got messed up (you can see a rope hanging down on the side of EOS1, that was not supposed to happen), the release mechanism of the balloon had no effect, so EOS1 continued to gain altitude until the balloon exploded. Therefore I had to wait much longer for AOS. But, when the cell phone finally replied, everything was working perfectly. It was a few hundred feets over the ground, and when it finally landed, I noted the coordinates, and sent them to a friend of mine. He wrote them in as a waypoint on a traditional Garmin GPS. After driving for allmost two hours, he could hear (the siren) and see the payload straight out of the window of his car - it landed in the center of a field next to the road! It couldn't be easier! Edit: The glider idea has been on my mind many times. I was mostly thinking about making a UAV that could automatically land on the launch-point (as others have done before).
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