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Micro Minimum OSD Wiring for race quads
#16
Yea don't rely on OSD Rssi, I found its kind of useless also.. normally when you see a big drop its too late.. You get TX warning anyway when signal is weak...
Don't be a LOS'er, be an FPV'er :) -- Blog - Facebook - Instagram - Twitter - Google Plus
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#17
Thanks Oscar
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#18
Since we use a BDP for our quad, I find this PDB as a boom for any build as it incorporates a MIniOSD in it hence eliminating the need of breakout board to program. It makes the wiring very simple and you just connect to the board directly from the USB port.

http://www.ebay.com/itm/172204367632?_tr...EBIDX%3AIT

I also think you can get same from BG at a cheaper price. There are 2 versions to this. Make sure you get the one with built-in OSD with USB.
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#19
It's been a while since I started this post. I'm no longer a fan of minimum osds, they are very finicky and break easily. I have 4 dead ones sitting at home. Lately I've just been using a flashing led in front of the camera. I'm hoping to try out fpv cameras with built in osd. I also ordered a simple osd from BG. All I really care about is voltage info anyway.
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#20
I am looking forward to more OSD options in near future, like integrated in PDB, FC or even inside the FPV camera... Smile
Don't be a LOS'er, be an FPV'er :) -- Blog - Facebook - Instagram - Twitter - Google Plus
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#21
Oscar all those are available already but there's not too much user experience written out there. Would be good to know if there was a solid osd solution out there.

I'll be testing out 2 FC's with osd and the new foxxer camera with osd. I also ordered the mini osd from bang good.
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#22
The new Foxeer Cam with OSD is a real let down, so much promise but fails.

the voltage display and name (which you can change ) flashes all the time, no way of making it display full time. Plus, the voltage reading is based on what voltage the cam receives, which is fine until you factor in that you may be running 4S lipos through PDB filtering set on 12 volts. But, not all bad news, you can solder a pair of wires to the cam board which will allow you to connect to direct power as well as have the filtered power connected at the same time to allow you to have correct voltage displayed, but that also means drilling a hole in the cam backplate to pass the wires through.

Overall, a great idea but fails. Best off getting a PDB with built in OSD like the RROSD boards, after all, most of us only ever want voltage displayed in a OSD anyway., well, I do.
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#23
Oh man good to know. You just saved me $50
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#24
(07-Jul-2016, 12:43 AM)trojanGoat Wrote: Oh man good to know. You just saved me $50

Glad to help , Only cost me $100 to find that stuff out..Bought 2 of them..LOL, The cams work fine though.
My youtube channel

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#25
(07-Jul-2016, 12:03 AM)trojanGoat Wrote: Oscar all those are available already but there's not too much user experience written out there.  Would be good to know if there was a solid osd solution out there.

I'll be testing out 2 FC's with osd and the new foxxer camera with osd.  I also ordered the mini osd from bang good.

i know but nothing i have seen that does all the things what we want Smile
but i know there are some really good ones coming that all i can say Smile
Don't be a LOS'er, be an FPV'er :) -- Blog - Facebook - Instagram - Twitter - Google Plus
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#26
(07-Jul-2016, 12:40 AM)BigglesFPV Wrote: The new Foxeer Cam with OSD is a real let down, so much promise but fails.

the voltage display and name (which you can change ) flashes all the time, no way of making it display full time. Plus, the voltage reading is based on what voltage the cam receives, which is fine until you factor in that you may be running 4S lipos through PDB filtering set on 12 volts. But, not all bad news, you can solder a pair of wires to the cam board which will allow you to connect to direct power as well as have the filtered power connected at the same time to allow you to have correct voltage displayed, but that also means drilling a hole in the cam backplate to pass the wires through.

Overall, a great idea but fails. Best off getting a PDB with built in OSD like the RROSD boards, after all, most of us only ever want voltage displayed in a OSD anyway., well, I do.

Thanks for that, I was going to buy one of those cameras this week. I'll leave it now and get a PDB with a built in OSD.
Current quad: ZMR 250 / DYS SE2205 / Littlebee 20A ESCs / Drone Lab 1500 4S / Naze32 Rev5 / BF 2.7.1
FPV: Runcam Skyplus / Aomway 200mw VTX / Fatshark DomV1
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#27
Hi, all.. I'm not new to quads, but I'm about to try an OSD for the first time. The wiring schematic at the beginning of this thread looks clean and straightforward, but I'm not sure I understand the OP's comment above the diagram, "(osd is already grounded, you don't need to connect GND beside +5v)". I don't see the ground connection, unless the battery shown also provides power to the flight controller. In my case, I want a portable FPV subsystem (easily movable from quad to quad) so I'm powering the VTX/camera/OSD from a separate battery. Wouldn't I need to add a ground wire to the diagram, to provide a return path for the signal leads from the flight controller? And if so, what are the best connection points? I'm using the same VTX shown, and the same OSD (micro).. the camera is different but connects the same way as the one shown. Flight controller is an SPR F3 clone.
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#28
Please, try to break up your posts into paragraphs, it's really hard to read a solid wall of text.

As the flight controller is going to talk to the OSD via a serial port, there must be common ground between the flight controller electronics and your OSD/Camera/VTX. So, a wire to the pad on the minimOSD that is marked GND should also connect to any ground on your flight controller or PDB.

What I'm not sure about is two batteries as you'll now have two batteries with different voltages sharing a common ground.

Personally, if I wanted to make a self-contained FPV pack like this, I'd skip the separate battery and use the 5V regulator on the VTX to power the camera and OSD from the quad's flight battery. Then you would just need a four pin connector on the quad with RX/TX from a UART and +/- battery voltage that would plug into a connector on the FPV pack.

Much simpler and lighter than having a separate battery!
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#29
One warning though, the micro minimOSD is reputed to need a 5V supply that is capable of 500mA. The 5V regulators on most VTXs can deliver no more than 150mA, so you may have trouble.
Personally, I don't believe that the OSD actually needs that much current, but just in case it does, don't say I didn't warn you! Wink
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#30
Unseen, thanks for the quick and helpful response.  Regarding my long block of text:  point taken.

I, too, was curious about powering the camera and micro OSD from the VTX 5V output, but the OP has apparently been successful with that method.  Just in case, though, I have a separate BEC handy if needed.

Once I have everything hooked up on the bench, I intend to measure the current being used.  I'll post the results just for reference... nobody seems to know for sure.

Just for clarification, the Quad battery and the separate FPV battery are both 3S.  The FPV battery is mounted with the VTX and camera for easier setup and testing.  Unplug 1 cable and remove 3 screws, and everything moves to the bench or to another quad.
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