FPV help
Hey, I'm trying to mod the Multiplex Easystar and put a FPV camera in it. I don't want to spend all the money on the full UAV thing, but I want to have a home arrow and the battery life displayed on my screen. Can anyone tell me what I'll need to get that to work, with nothing else?
Replies to This Discussion
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Permalink Reply by Wayne on -
I may be wrong as I to am new to this but I think the ONLY way to get things to display onto the screen is by using some kind of OSD (On Screen Display). Which you can get the Remzibi's OSD for just $114 here at DIY. How ever if I am wrong please someone correct me, but this is the only way I am aware of.
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ModeratorPermalink Reply by Hooks on -
yep! you need a FPV osd. You can find alot of solutions some are simple and some are very advance.
What budget are you working on?
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Permalink Reply by Grant Parker on
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I could get any of them, but right now I want to find the cheapest way to get a home arrow and the battery life on the display, and I want to have a parts list of exactly what I need. I've already found the motor, the camera, and everything else. The last bit I need is the OSD. Am I going to need Ardupilot and the shield kit for that, as well as a GPS?
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DeveloperPermalink Reply by jasonshort on -
The UAV part is cheap. It's the RC radio, plane, motor, batteries, camera, OSD with GPS, transmitter, receiver, and headeset/LCD screen that are expensive! I flew the UAV part for $25 bucks for a while and it worked fine.
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ModeratorPermalink Reply by Hooks on -
Jason
"I flew the UAV part for $25 bucks for a while and it worked fine." What UAV part are you talking about?
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DeveloperPermalink Reply by jasonshort on -
Yes. you can get a fully autonomous aircraft flying with just the 25 dollar board. The FTDI cable to program it is a few more bucks. You don't really need an airspeed sensor unless you want better performance. Of course I already had the Copilot XY IR sensors which you need for FPV anyway. Flying FPV without stabilization is just plain dangerous.
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Permalink Reply by hpux on -
I'm actually working on this myself... Just find a LED battery monitor and stick it somewhere that can be seen with your camera.
This example: http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXHDJ2&P=ML isn't perfect because it's made for receiver batteries, but the idea is good. This one's only $12. Even this one can be made to work with some clever electronics, such as a voltage divider.
A potential problem is making the range of safe voltages of your batter match the range that this device works on. For example, it the "low" LED on this is 4.5 volts, and you're using a 3S Lipo (9 volts is probably the lowest you want to go) then you can divide the voltage in half. 9*.5 = 4.5 A "full" 3S lipo is 12.8 volts and 12*.5 = 6 which is within the range, and it works. A 2S lipo, 6 -> 8.6 becomes 6*.75 = 4.5 -> 8.6*.75 = 6.45, which is slightly over the range.
Anyway, hope this helps. It should be a lot less expensive than a OSD.
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