TEST: EACHINE VR-D2 FPV goggles: 40CH, 800×480 5″ screen, diversity and builtin DVR

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INTRODUCTION

Here is a new FPV goggles from Eachine. After the VR-007, the EV800 and the goggles one, with theEachine VR-D2, we have a relatively cheap goggles but offering diversity system, a 5″ 800×480 screen, -95dBm and a builtin DVR to record your FPV flights !!!. Let’s discover this bundle.

BOX CONTENT

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+ 1 x Eachine VR-D2
+ 1 x 2200mah 2S LiPo with DC connector
+ 1 x Charger
+ 1 x 5.8G Cloverleaf antenna
+ 1 x 5.8G Patch antenna
+ 1 x Fresnel lens clearning kit
+ 1 x Instruction manual (English)

OVERVIEW

A classic rounded goggles chassis. with 8 buttons and one Digit display located rear. It’s good to see that they directly provide a CloverLeaf antenna for short range FPV and a plannar one for long distances instead of basic twin linear models

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The two top upper bottons select the Vband (5 in total are supported including the race band) and the current Vfreq Inside the current select band.

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Notice the FR button plays with the right LED digit while the CH with the left one. Their respective position are clearly inverted….
The two antenna plugs are in RP-SMA format. The 6 other buttons are dedicaced for the DVR (for the first left three) and the power-saving, display settings and AV inputs selection respectively.

Good news the distance of the Fresnel lens can be ajusted via the two latteral sliders. You can ajust the focus to your current Myopia level. Unfortunatly for my personnal case, even set to the maximal distance, it’s still a little bit blurred, probably linked with my new-old eyes. The big open question: Can we use the VR-D2 while wearing correcting glasses ? The answer is yes for relatively compact ones. It’s a good news.

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The headstrap have 3 anchoir points and will allow to carry the LiPo too.

The facial foam is confortable but maybe ultra large noze could meet some problems (Personally I didn’t encounter some problem while having a relatively large noze)

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Installed on top the microSD card for the builtin DVR. First bad news, not all microSD card be installed. Some really basic model are not compatible and a “card full” error message will be displayed. No problem with any class 10 formatted in FAT32.
You have also two small red lights indicating the diversity activity associated with the two antenna.

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No other inpout/output ports … so no AVin or AVout for example….

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Close to 500g in total weight. Luckely, part the weight is equilibrated because the LiPo is installed behind the head.

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The LiPo offers only a DC plug without balancer plug. So no real possibility to recharge/balance it :(… It’s a drawback versus time.

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Two video inputs can be selected via the left buttons:: The direct FPV AV1 to fly FPV.

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“Whitesnow” is here so synonym of a FPV friendly firmware for the display…. In practice, in flight, when the signal dissipears beyond 1s, a black screen can be here 🙁 … No indication except the AV1 logo on the top right. This logo can flickering to red … I am not sure if it’s linked with the battery level status… but for sure there is no specific battery indication status… It’s definitively a drawback…. well this bad news can be minored by the excellent autonomy of the goggles. More than 3h contineously while recording… Not bad :). More a buzzer is here to ring the bell when the lower voltage is here !!! The screen display “LO”.. With the AV1, the latency observed is low and absoluptly not a problem to practice FPV racing. Bad news, for PAL sources, few lines are cropped bottom… nothing catastrophic just 5-10 lines maximum.

The second input (AV2) is the DVR one where some OSD informations can be overlayed.

In this mode, if you long press on the “stop” button, you will enter into the DVR menu settings … and here you will recognize the HMDVR/Eachine Pro DVR OS… So no real doubt about the builtin DVR

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By default, the VGA resolution is selected recording in 640×480 @25fps

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Good news you can select and save the D1 mode but resolution goes to 720×480, a NTSC D1 format@25fps …

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For PAL source recording, the close too 756-480=76 bottom lines are not recorded loosing for example some important OSD informations. It’s a known problem for the HMDVR/pro DVR modules. 🙁

At least for pure NTSC sources, recordings are pretty good and the RX sensitivity is very good better than my Boscam GS922 for example (announced to be “only” -90dBm)

Video time must be set to off if you want to record more than the default 10min flight session. I was able to record without problem a 1h20min file.

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EDIT 09/29/16. A new PAL firmware firmware is now available to solve the PAL recordings cropping. Remains the AV1 few bottom lines cropped and blackscree

What is a little bit annoying, you will have to first go from AV1 to AV2 to start recording, then return in AV1 to enjoy low latency display then return to AV2 to stop and/or playback the file.

Disassembling

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The main PCB of the FPV screen

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On the other side, the DVR board… very similar to the Eachine ProDVR

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Good news, a Buzzer is here to ring the low voltage alarm

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UNBOXING & ANALYSIS

CONCLUSIONS

A good product with a good non-HD screen and good facial adaptation/. For just few bucks more than ancestor goggles models, you have some adapted FPV racing antennas, a builtin DVR recording superbly NTSC sources and with a great RX sensitivity. I regret mainly the presence of the PAL bug cropping mainly bottom part of FPV recordings for PAL sources. The time to time presence of a black screen in lost signal conditions is also problematic. A good step forward from Eachine but not yet the perfect product.

PROS

+ Diversity system
+ Cloverleaf/planner antennas
+ Builtin DVR
+ 5″ screen
+ 3h of autonomy
+ Ajustable distance lens
+ Great RX senstivity
+ Confortable
+ Compact eyeglasses can be used with

CONS

– No Vfreq autoscan
– Few lines cropped for PAL source for AV1 (direct live input)
Recorded PAL sources cropped to 720×480 instead of 720×576 solved with the last PAL firmware (see video)
– No (clear) battery level indication
– Black screen when signal is lost more than 1s (diversity problem)
– Individual -90dBm receiver (not -95dBm)
– No AVin/AVout ports
– Not compatible with all microSD card
– Poor patch antenna performances
– Light leak close to the noze section

RCgroups thread: http://www.rcgroups.com/forums/showthread.php?t=2742019

This FPV goggles have been courtesy provided by Banggood in order to make a fair and not biased review. I would like to thank them for this attitude.
You can find it actually for 100USD at http://www.banggood.com/Eachine-VR-D2-5-Inches-800480-40CH-Raceband-5_8G-Diversity-FPV-Goggles-with-DVR-Lens-Adjustable-p-1074866.html

20 Comments

  • Droone says:

    This quadcopter have been courtesy provided by ….
    This quadricopter or This Goggles ? 😉

    Est qu’il est/serait possible d’ajouter une prise vidéo pour le connecter à un ordinateur et se servir du casque avec un simulateur ?
    Je trouve qu’il lui manque cette possibilité.

    Belle présentation, comme d’habitude 🙂

    • SeByDocKy says:

      The problem…. as wrutten, there is no AVout (and even less HDMIin) for a potential PC connexion. Of course, you can also mod the goggles to install an extra JACK connector to be used as AVout.
      It should be not so complex. As you can see on the internal photo, you have the yello cable be the AVout…. So derive it with the ground for the JACK connector and voilà… but I am afraid the AVout will be a little bit Noisy too

  • ZEGO says:

    Hi,
    Is there a way to invert the screen display?
    As mine is upside down with the 250 Racer FPV quad as the input.
    I don’t think rotating screen 180deg will work as the OSD will then be upside down.
    There must be a button combination on startup or something like that to reset it.

    Could you help please

    • SeByDocKy says:

      Hummmm …. what a weird problem. So video was always upside down ? Can you check with another FPV source camera ? Are you sure there is no button for your FPV cam ? coz I don’t know any to rotate the video with the VR-D2 🙁 ….

      • ZEGO says:

        Hi,
        Thank you for the quick response.
        I only just received the VRD2’s and I have been flying the 250 Racer line of sight. The camera is installed plug and play. The red button on the quad VTX is for channel scan and select. I also tried the CRESFW.BIN update for the VRD2’s and no new options there. Maybe they can add in option in next update?

  • Onclefly says:

    Salut Seby, après que tu es fait la mise à jour, y a t’il toujours le problème d’écran noir quand on vole ? 🙁

  • Anthony Farr says:

    I love mine.

  • Alfonso Irwin says:

    Hi SeByDocKy.
    In the CONS in you review, you mentioned that is bot compatible with all microSD card.. Do you know which card works?
    Thanks.

  • B0r1sn0v4 says:

    Yea, you just gave out the info that would be a dealbreaker for many people.
    Change back to fpv feed while recording. Cannot believe I did not think of that or that is not mentioned anywhere in the documentation. Most reviews of the goggles point this out as a major flaw due to the lag in dvr mode. I am so happy now I don´t have to carry around two pairs of googles:D:D Thanks. seriously.<3

  • benjamin says:

    Hello Seby,

    I’ve noticed with my Lizard95 two problems with my VR D2 FPV goggles :
    There are two modes on the Lizard95 : NTSC and PAL, that can be choosen by pressing one of the button up the camera more than 2 secondes
    1st problem : On one of the mode , the picture is OK on the Goggles in AV1 but cropped in AV2 so I guess it is PAL mode with the DVR crop issue. I upgraded firmware and now the issue is gone in AV2 so it confirmed that it was PAL probably and first problem is solved 🙂
    2nd problem : on the other mode (NTSC I guess), the picture is kind of “extended” on the vertical axis, and the first lines in the upper part , and the last lines in the bottom part, are not showed. The OSD is cropped in the up part and in the bottom part.
    Do you think this is an issue with the Lizard or with the VR D2 not compatible with NTSC ? Or maybe there is an option in the VR D2 to set up ? I’ve tried the “TV OUTPUT -> PAL / NTSC” but no effect, the same for the 50/60Hz option 🙁

    • SeByDocKy says:

      No it’s normal to have this overlap when a NTSC source is displayed in PAL configuration…. the Pro version can correctly switch between a NTSC to a PAL for the display… Seems for the orignal, we need the PAL and NTSC firmware to be flashed correspondly the used cam

  • Benjamin says:

    After deeper investigation, the problem is not really one (fortunately … because I have a mix of NTSC and PAL cameras on my present [and future to build …] drones).
    In fact, I thought that the image was cropped because :
    1) Sometimes, when I change the camera between PAL and NTSC, the AV2 video output becomes “cropped” with respect to AV1. But after power off / power on of the VR D2, everything becomes normal … It doesn’t like a transitory between PAL and NTSC during one session, which in fact is probably normal

    2) I had a “permanent” crop of the OSD on the LIZARD when choosing NTSC output of the Lizard camera => it was because on the Betaflight setting, I had chosen “auto” instead of PAL or NTSC.
    Choosing the good configuration in Betaflight (PAL with PAL output and NTSC with NTSC camera output), the VR D2 works well 🙂

    The image was not cropped, only the text of the OSD was corrupted (very strange things, some text was up instead of down, the artificial horizon was only present on AV1, but not on AV2, very strange …).

    So finally , with the firmware update, it seems that the VR D2 is robust to a PAL or a NTSC video source, just need to choose the right setting for the OSD in Betaflight !

    By the way, I still don’t understand what are the VR D2 DVR options “TV Output : PAL or NTSC ” and “50/60HZ”. It doesn’t seem to be used and doesn’t have any effect. And there is no video output of the goggles …

    • SeByDocKy says:

      The original and full DVR is HMDVR module based where you have a AVout… so this option is a residual 🙂

  • Benjamin says:

    Thanks 🙂 I will avoid wasting my time on these options !

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