DJI Goggles 2 + (new) TrueRC directional antennas - range test (RC FPV car)

[@Magneticitist]

lol I'm so jealous of the snow man.. I've been waiting and all we got here was warmer weather. It's crazy. I found range testing hard to gauge at first til I started planning out locations ahead of time and paying attention to the overhead view of it in google maps. After a while I got to the point where I could sort of accurately guess what my signal would be in any given location relative to where I was parking. It's confusing because certain layouts can propagate better signal even though it may seem like there is more obstruction.

[@NUeB_RCFPV]

I'm glad the snow is gone… This range test is relative good, because I always sit at exact the same place (guess where 😉). So I can tell which influence changes to the setup actually have - and that's what *this* test shall reveal only.

[@Magneticitist]

What happened towards the end there? Like a control signal issue? That was close though lol.. almost went right in the drink.

[@NUeB_RCFPV]

When I started RC / FPV flying back then my "flight instructor" used to say "If it's not okay for you to totally crash that plane: leave it in the shop". 😉 Video / radios signal were fine. I guess it was a combination of icy bump and steering error caused by radio. Stock radio was like turn the wheel 10 to 15 degree before anything happens… and then bam! - much more steering angle than intended. Radiomaster MT12 ELRS arrived this week. I just did the first test drive - o boy, *WHAT* *A* *DIFFERENCE!* Even with some fine tuning still to be done, it feels like a whole new car. So much more precision in control. 😊

[@fsarfino]

Are you using a head tracker as well? If so what's the setup for head tracker if you don't mind sharing. Thanks !!

[@NUeB_RCFPV]

No, no head tracker (yet). Just a pan servo in parallel (Y-cable) to steering.

[@fsarfino]

@@NUeB_RCFPV that makes a lot of sense for a lower budget solution. Seems to work well thanks for the info.

[@NUeB_RCFPV]

@@fsarfino You're welcome. And in my case it's not a budget thing, btw. ;)

[@junebugpetty7386]

Great music!!! I have the Goggles 2 and was thinking of getting the O3 are you able to get full transmitting power without a Flight controller? If so what do you have to do to get full power. I was reading that to get full power with the Goggles 2 and 03 you have to have it hooked up to a flight controller has DJI fixed this yet so we can use the O3 for things that don’t have a flight controller?

[@NUeB_RCFPV]

Thanks. The O3 air unit needs the "armed" signal to go to into full power mode. I took a Seeeduino SAMD21 microcontroller (powered by a tiny UBEC, both together ~ 10 EUR) to send the "armed" signal to the air unit. The software (by ramiss) needed and a wiring diagram can be found at github.com/ramiss/arduino_DJI_03_RC_ARM I just changed the initial delay to 6000 msec and everything worked instantly. Don't forget to add a fan to your air unit! See my FPV gear for the WLToys car used in this video: www.printables.com/model/660115-dji-o3-fpv-kit-for-rc-car-freecad-updated

[@junebugpetty7386]

@@NUeB_RCFPV I have a couple questions for you. I have the Goggles 2 if I buy a Vista can I use that with the Googles 2 without a flight controller? Also with the arduino diagram I’m a little confused. When I look at it what is the blue box that says to the motor? I also see in the diagram it says Throttle channel. Can I just hook it up without a receiver and power it with the UBEC and battery? Thanks for any help that you can give me on getting this setup.

[@NUeB_RCFPV]

I don't know about the Vista. The blue box (+ blue line, R1, R2) are *optional* for battery voltage reading through the arduino; you don't need that; I left it away and it's fine. "Any" receiver channel" is the power supply for the arduino. This is where I use a separate UBEC. I want all the FPV stuff to be as independent from the car's electronics as possible. You can see *my* wiring at ibb.co/W3dWP7C - HTH

[@junebugpetty7386]

@@NUeB_RCFPV Unfortunately, when it’s attempted to be compiled, the Ardiunio doesn’t upload or compile and instead says compilation error: “exit status 1”. Do you know how to fix this? Or what I should try? I did the directions on the page. I downgraded to 1.7.9 and all the other stuff without success. Thanks for any help

[@NUeB_RCFPV]

@@junebugpetty7386 You should get more detailed messages than just an exit code in Arduino IDE. support.arduino.cc/hc/en-us/articles/6554914611228-Compilation-error-exit-status-1

[@Revelation1177]

Where do u have your vtx an camera hooked up did you waterproof it I wanna run mine in snow but I'm scared the snow damage my gtx an camera

[@NUeB_RCFPV]

You can see my FPV gear in other videos or on www.printables.com/model/660115-dji-o3-fpv-kit-for-rc-car-freecad-updated - where you can also download the files for printing. I had the camera full of snow, been driving in rain - no problem so far.