Open.HD Build project - Connecting everything together on the bench

[@minkorrh]

Everything is clunky until it gets wider adoption, then things will streamline. We have people like yourself and the devs to thank for the hard work that makes it cheaper and more fun for all of us. Thanks Wayne! :)

[@Gosuminer]

Fantastic! Thank you and all developers of this project. Open.HD looks much more mature than I expected. When you waved your hand in front of the camera the latency looked quite ok, surely flyable an a slow craft.

[@EnglishTurbines]

Latency will be the least of all problems, trust me.

[@CurryKitten]

Yeah - I thought so. I was very impressed that I could just stab at the touch screen like it was a regular tablet app

[@JR-kk6ce]

Thank you, thank you, thank you! for taking us up to the next level. RC channels have been stuck in the boredom doldrums for quite some time now.

[@CurryKitten]

Hey - thank the Open.HD guys, I'm just along checking out the awesome stuff they've managed to do

[@matthewallen3375]

You do a really good joby of showing us a more true picture of an experience of how to set it up. with all the errors and deadends. Thank you.

[@FernandoBelloEchevarria]

This is freaking amazing !!! I have been looking for this exact system for a while now!!

[@CurryKitten]

OpenHD has come on quite a lot since I made this, so there's even more to look forward to !

[@banzaypc5266]

Absolutely amazing video series! I just found out about Open.HD and your videos are a life saver for my project. I am really looking forward to more videos pushing the system to its limit. Keep up the good work!

[@CurryKitten]

I found it quite by random as well - but very impressed with it so far.

[@banzaypc5266]

@@CurryKitten Oh and one extra thing that would be great to see would be pairing Open.HD with ardupilot, mostly because I still can't figure out how to have both Mission Planner and Open.HD running at the same time and if that is at all possible. EDIT: found the wiki page, but a vid would still be great :)

[@MCsCreations]

Really, really interesting, Wayne!!! 😃 Looks fantastic! Looking forward to the next videos! Stay safe there with your family! 🖖😊

[@CurryKitten]

Thanks MC - hope things are getting better over there.

[@semadragun]

Just heard about Open HD and found your video. I have been looking for a fpv system for my rc car and this looks really good.😎

[@CurryKitten]

It's pretty easy to fit things in on a car. But what's very crucial to this is the antennas used. I'm just about to get a video out where I (finally) have great video all the way through and the key to this was the maple leaf antenna

[@HobkinBoi]

I'm personally glad to see alternatives to the expensive digital FPV systems that are currently out there. Which there isn't very many of in the first place.

[@Rich-TeaFPV]

Making good progress, I thought it'd be 4 or 5 videos before you'd get a picture transmitted from the camera to the screen lol. Looking forward to the next video 👍

[@CurryKitten]

Thanks - some of the relative ease was about getting the things that were recommended and didn't need much fiddling around with.

[@Lucky32Luke]

I love that the guys I follow in my hobby somehow always have a musical instrument in their room. I don't think it is just a coincidence. AndyRC (a composer, singer and playing on many musical instruments), Mr Steele (guitar), Stingy (bass guitar), now you as well as (is it a Fender bass in the background?). Pretty cool! Myself is drums and guitar. Anyone have noticed the same "coincidence"?

[@CurryKitten]

Perhaps we all see ourselves as a creative bunch. I love my instruments (in the room 1 bass (not fender sadly) 3 guitars, 1 uke, 2 keyboards and my e-drums in the loft as I ran out of room) I am, in all honesty, completely crap at all of them - but I like to think it's the taking part that counts :)

[@Lucky32Luke]

@@CurryKitten Honestly I wont put myself in saying I am good at guitars or drums either. LOL But I do think that you are right it is the taking the road to understand and able to appreciate it more on the way what perhaps creativity is all about. I also think in freestyle the coordination and timing plays a huge role as well it does in playing on any instrument. That is why I see playing music might have something to do with getting into freestyle and maybe develop skills a bit faster than others. I might be wrong but the observation seems to be valid so far. Just way too many in our hobby somehow have had or still having some kinda musical "background". Keep up playing on those no matter how good or bad you think you doing. "Music is a complex language which somehow able to open up axioms and connect other cells without actual words." (Yo Yo Ma)

[@philthayer4087]

Well given its FPV, I'd wager there lots of skin flute soloist's out there!

[@UnburroVolandoFPV]

Great Video, that is what I looking for the last 3 mount. Thanks for share it!

[@EnglishTurbines]

Great job Wayne...you made it look easy...Of course the range test is yet to come...Humble Pie anyone?....I'm sorry about that, I'll get my coat now...lol.

[@CurryKitten]

I already had "The air pi should be 'pie in the sky'" from elsewhere. Lots of puns at the ready with this one :D

[@EnglishTurbines]

@@CurryKitten Looking forward to seeing you fly it TBH...

[@FailsafeFPV]

This is such an interesting video! I love this stuff

[@CurryKitten]

Thanks - I'm enjoying learning something new. It reminds me of getting into FPV the first time and having to find loads of stuff out

[@adbas6201]

Kurrykitten, very good explanation. I am using it since 1 year. I flew this week with old fat shark goggles and it is very impressive. Waiting for your next video 😉

[@richardbulger]

This would be great as a way to share your live view with spectators, especially if you fly DJI and don't want their expensive HDMI out solution. If you could get the air part of it packaged up into a gopro sized case, you could slip it in to an existing mount when you need it.

[@CurryKitten]

Yeah - I don't know if there's a limit to how many people could connect to the wifi network and use multiple instances of QOpenHD - but easy to share. It would be pretty easy to make a little "lump" that you could easily add in, but a bit harder to connect up the needed telemetry to make everything show correctly.

[@ShinyVideoStuff]

Fantastic job. Exceedingly interested in what this can do.

[@CurryKitten]

Thanks - me too, tests to follow soon (hopefully)

[@mallingdave]

Very interesting... looking forward to part 3... 👍

[@CurryKitten]

Me too - but I haven't started yet :)

[@WrongWayFPV]

Very cool!! Loads of good info. I'm excited to see how this goes. Great video 👍👍

[@CurryKitten]

Me too - all good so far, but interesting to see what sort of hurdles I run into once I start putting the air unit on a model

[@quadswithmods]

Amazing stuff :) 👍🏻 exciting times

[@CurryKitten]

Aren't they just :)

[@quadswithmods]

@@CurryKitten if you have some skyzones could use the hdmi in amd head tracking but not getting the full afect of the hd 🤦‍♂️

[@typxxilps]

phenomenal result and great progress, far better than expected after first video and pretty interesting approach ... Hadn't thought that from the transmitter - receiver combo only gimbals + switches + logic are used if I did not overlook something. i guess it might be good to get a camera case for the pi cause the camera + pi-zero cable is very, very delicat from my experience with bird observation 3 - 4 years ago. Putting all things in the waterproof camera and then the camera connection was broken over and over again. You need a bracket / stand for the camera that always had to be close to the zero or nowadays you get longer flex cables but they are rigid and zero and cam have to be in 1 straught line behind each other or above each other. If you have the zero and camera in 1 unit then this connectiin is safe ...

[@dikibhuyan9265]

nice work.. hope next video will come soon

[@CurryKitten]

Pretty soon now

[@Lucky32Luke]

I can understand only probably 1/10th of this due to my lacking knowledge on Pi and coding but I do understand the achievement what a community can do. Amazing! Keep it going Wayne I think your work is also adding to the project. Nice work mate! (I am still wondering if I at age 43 could or not catch up with you guys. Got no clue how long it would take me to learn such stuff.)

[@CurryKitten]

Learning anything from scratch is hard, but the great thing is that there's great online resources for everything online now. It's just a case of finding the time to stick at it - things click into place and become second nature in no time.

[@kevchef]

This is great! Perhaps eventually we might see a company put all this Open Sorce into a tiny plug-and-play box to chuck into a plane or quad. I also saw a YT vid today showing SharkByte, from Mark Cocquio. Glad to see things happening with digital HD FPV (other than from DJI) it is all good for innovation.

[@CurryKitten]

You can but hope - embedded tech with high speed h.264 encoding/decoding coupled with a powerful wifi adapter. Could be done. I saw the Shark Byte as well - nice to have multiple options

[@osga3981]

Very interesting, thanks for sharing!

[@CurryKitten]

Thanks for watching :)

[@TheMachadomachado]

The modes were wrongly mapped in inav firmware when using mavlink telemetry. There is already a commit that fixes this for next inav 2.6 and we are also working on more stuff, such as system msgs and sensor temperatures 😉👍 For connectors in my wing I am using a mpx connector, already did many flights and hard landings and it is fine. Just make sure you choose a robust connector and do not USB. Great stuff by the way... Keep it up!!

[@CurryKitten]

Great to know - thanks. Yes - it seems that using a connector is fine, just stay well away from that USB connector and all is good.

[@Lozoot2]

Hell. Yes. I don't know why I didn't see this until now but this is freakin' awesome! I have a bunch of Pi Zeroes and a spare 3b+, and already have all the other parts lying around - regarding the camera, there are definitely better cable solutions out there. I actually have a really long ribbon cable I use for monitoring a 3d printer, and the camera rotation can be changed through a config file just like the screen. Excited to see where this project goes!

[@CurryKitten]

I'll have to keep a look out for a better camera cable then, as it's hard work to use. My next part was just about done, when the Zero I was using decided to flip out and start acting weirdly, so I'm tracking down the problem so I can figure out the fix

[@Lozoot2]

@@CurryKitten there's also something interesting I found for the camera cable - there used to be a company called PiCables that sold the exact kind of cable you're looking for, but they seem to have up and vanished... Interestingly, I found a website that reviewed their cables back in 2015. It looks like they sold a version that was just the very end of the cable but with extra long contacts, with the idea being that you could solder your own wires to it: www.framboise314.fr/wp-content/uploads/2015/01/cable_03.jpg Also, looking at the cable for a Runcam Split, the ends look very similar to those of the regular pi camera cable. It's a bit of a long shot but it might be worth just checking if it could work!

[@campilottv]

congratulation. now I also will make this project

[@CurryKitten]

Cool, have fun!

[@MrTuskan]

All the Open.HD channel watching your deeds!

[@CurryKitten]

Good. They can set me right when I do something wrong :)

[@mrfpv]

Great project thanks wayne

[@CurryKitten]

Thanks 👍

[@gerrysquire]

ooh part 2. exciting

[@CurryKitten]

Part 3 is where it should really start getting interesting :)

[@gerrysquire]

@@CurryKitten looking forward to it

[@anders4u222]

Great, just what I want to see. Lots of potential. Thanks a lot🙏🏼🙏🏼🙋🏼‍♂️

[@CurryKitten]

Thanks - it's fun to play with something new

[@fengxiajiang3743]

Thank you for your detailed explanation. I learned from China that Siyi HM30 is also very good. I wonder if there is a chance to see a detailed explanation about it from you.

[@alerx94]

i was looking into openhd like a year ago but things were so big bulky and messy. now it seems almost plug and play, maybe you got me finally into hd fpv :D

[@CurryKitten]

Certainly a lot easier than I expected on the bench. The ground app that runs on the Pi is really very friendly. Things ramp up a bit next as we have to start decasing wifi adapters and soldering onto pis and things

[@alerx94]

@@CurryKitten i suppose if you have some basic soldering skills (and if someones does fpv its mandatory) decasing should be easy. next big thing should be some complete package, 2 pi's, 1 cam and the ground monitor at a decent price.

[@alerx94]

@@CurryKitten also i was thinking, since i'm using wifi gear, not modifying output power maybe the video system will also result completely legal, unlike 1.3g video?

[@spodfpv5930]

Hi Wayne, this looks like an awesome project! Hopefully it’ll evolve and maybe even offer competition to DJI. In regards to the camera being at an odd angle, it would be an incredibly easy matter to design and 3D print a mount for it to adapt it to have mounting holes that would hold it properly.

[@CurryKitten]

Yeah - the idea of mounting the camera isn't a problem itself, it's the ribbon cable I find a pain - it makes things a bit harder to move around easily. I'm surprised there's not a regular round cable that attaches to either end which would be a bit more workable. I'll figure something out in the meantime though

[@spodfpv5930]

CurryKitten ah I see what you mean, that does look like a pain. I’ll be interested to see what you figure out to make it work better👍

[@typxxilps]

sad too see just 1.000 views for such great and unique content ... Looks a lot better and easier than in episode 1 announced. I also like the step by step evolution like starting with the pi4 as camera transmitter instead of zero and also the classic flat cable drama that I had in the bird observation project years before. You won't find a more flexible cable, but you can get longer ones on Ali Express or ebay. I also assume you need a cable from WiFi to pi zero to put the usb transmitter on the wing or to separate transmitter and antenna with a cable. Maybe you can get pics of the internals of the usb transmitter to decide if opening the case makes sense which also will lead to higher interference.

[@CurryKitten]

Well now at least 1000 more people have heard of Open.HD so the word spreads and people get to try it out.. if it floats their boat. The general advice about the Wifi adapter is to minimise the length of cable you'd use (and solder it) although further questioning tells me it's all about the worry of the USB adapter, so I could make up a more secure connector so I can move the dongle between the zero and the pi4 if I want to. Those cables are a pain - some of the nicer instances of people flying OpenHD they are using HDMI to CSI cards and getting their camera input from a nicer camera. The Pi stuff feels like old CMOS FPV camera from about 5 years ago. They are workable, but could be much better. So I won't fixate on the issues with the ribbon cable too much, hopefully I'll move on from this eventually

[@typxxilps]

@@CurryKitten 9 months later and 10 x the views. I am back again, got all the pieces except the FC cause the one ordered hat to replace a broken FC in a crashed plane, so I had to order another matek 405 Wing - cause I do not wanna desolder FC out of a plane. Even a jetson nano will arrive soon, but here is my question: where do I find the instructions for a nano. On the wiki and forum I did only find 2 posts from december + january and I did not want to bother anyone in the telegram while not being ready. the january has a comment "3.0 branch of OpenHD to run on a jetson, which is not released yet" and that V3 branch seems to be an architectural redesign and had not achieved much progress. So I guess I have to continue with the Zero in the Air unit - which is already working without FC. THX

[@stevemann6082]

looking good, surely you can find a smaller wifi stick than that. latency is the big question.

[@CurryKitten]

I didn't think it was quite that big when I ordered it. i assumed it was like a little thumb drive :) But yes, you can get pretty small card from the likes of aliexpress and build something smaller. I wanted something quickly

[@eXpire163]

This Video series really should be linked in the open.hd wiki. Could you create a playlist that could be linked

[@CurryKitten]

I did already have a playlist created here kzbin.info/aero/PL7WaECFssECJWfTc0vKYTfUdH5y8UgdI9 It probably needs a part 3 and 4 to be more useful though

[@woodrunner51]

This is gold!

[@brightontilifly]

you are a hero @CurryKitten

[@CurryKitten]

*stands in super-hero pose* looks effortlessly cool

[@ravevibetechno]

I would like to use a dual setup with two air-pis and two ground pis next to each other. Maybe I have to adjust wifi channels, but do you know if this would work right out of the box without major interference?

[@CurryKitten]

It would be useful to see. Right now, I don't think two Open.HD people have flown together - it would be useful to see if there was any issues with analog FPV near by as well

[@ravevibetechno]

@@CurryKitten Yes. Someone told me if you use the wavelength in centimeters as distance between both antennas they won't interfere with each other theoretically if they are on same frequencies and transmit power - from a physical perspective (not quite sure if this condition helps on aircraft) But I dont have 4 pis :D ha

[@jacobstech1777]

amazing!

[@crisarcher77]

How the plans with practical tests in the air? It would be great to see your comprehensive conclusions and summary :) Many people don't know if this DigitalFPV direction is for them or they should choose DJI. On YT are a lot of videos about OpenHD/EZWB but most of them are stuck on the table, without a substantive summary based on the final tests in the field :( Maybe you could compare the strong and week sides of OpenHD and DJI

[@CurryKitten]

I'm still on the ground vehicle stage. This should have been out several weeks ago, but I managed to kill one Pi Zero then had a fault in another, so am just ready to connect up again and test the rover

[@crisarcher77]

@@CurryKitten 144/5000 You can always test flying with RC by radio and use OpenHD only as FPV + telemetry by wifi. In case of any problem, you landing looking on the model.

[@jacquemeier2005]

Perfect

[@dukedblu]

Nice!

[@CurryKitten]

Thanks Muchly :)

[@GhVost]

Hi Wayne, thanks a bunch for the great overview! Do you plan to make the 3 part on the topic any time soon?

[@CurryKitten]

Yes - editing it at the moment, hopefully out for Friday

[@GhVost]

@@CurryKitten Thank you so much! It will be, without a doubt, very informative!

[@flying-oyvinator]

etcher works just fine on windows 10.. never had an issue with it

[@CurryKitten]

I suspect it's absolutely fine. Before I got the new Pi's I had issues with Etcher on my Mac trying to write an SD card to boot my old Pi model B whilst ApplePi Baker managed it - so I just stuck with what was already working.

[@ShinyVideoStuff]

I noted that the Hawkeye Firefly 4K Split Mini camera appears on their list of supported cameras. Missed this at release cos most reviewers wouldn't have tested it but apparently that board supports HDMI out and also USB camera mode (selectable Webcam or Mass Storage device). Might be a good option for pilots looking for a sharp wide-FOV camera. github.com/OpenHD/Open.HD/wiki/Hardware-~-Supported-Cameras

[@CurryKitten]

It is indeed, and I do have one from an earlier review. People are using it with an HDMI to CSI adapter rather than in USB mode (which is very high latency) it's something on my list of to-do's after I get the basics happening properly as the Pi cameras are functional but feel like FPV cameras of 5 years ago

[@WX4CB]

i'm not worried too much about the HD video, but i would love to be able to get a ground-pi and just feed it mavlink data so i can pull the OSD off to overlay it onto the 4k video :D

[@CurryKitten]

I was interested to know this as well. The on-board ground recording on the Pi doesn't record the OSD itself (most people will use a QOpenHD app to do screen recording) but if that's the case can you save the telemetry data and process it into a video later? I don't know the answer, but I like the idea of it

[@WX4CB]

@@CurryKitten the telemetry data can be processed at a later date, but the issue is there's nothing that will produce an OSD from that data that i'm aware of. I was just going to capture the OSD video and luma key it out in post

[@stevefox3763]

Boy does the cost of this system start to mount up! On a plus , the zero is pretty cheap and once your system is up and running, adding additional air rigs to other craft can be done at around £30 a craft. For my link, Ive gone Taobao wifi card because I know they work and are reasonably powerful, once I've got it up and running I'm going to experiment with unknown low power 2.4ghz adaptors with amplifiers on them as I have a fair number of 2.4ghz amps and range will be so much better on half the frequency and 2 to 4x the power 😁 Absolutely everything is coming from China so its gonna be a long wait but I have no option as I can't afford to build it any other way! Do you know if you can set it up so that its controllable via both a regular RX and the openhd at the same time? I'd like to use the qczek 1w 433mhz system I have or my r9 but having the redundancy of the openhd would be great if both can live together at Tue same time on the control side? I know that you can override rc and fly through mission planner and a joystick or gamepad so can't see why it couldn't run in the same way for ohd.

[@CurryKitten]

You can certainly run a regular RC system along with Open.HD doing the video - now weather you can run both at once and the have one fail to the other is a different question... don't know is my quick answer. You might want to ask the Open.HD telegram group that one

[@stevefox3763]

@@CurryKitten yeah. I'll have to get asking :) On Ardupilots mission planner it's possible when feeding the groundstation via traditional telemetry modules, having a simple gamepad for a pc or even a a PlayStation pad with a USB adapter can get you home if your rc link fails. Latency is high and not something you'd want really to fly on all the time but as an emergency redundancy it makes sense to have! I've never suffered a loss of Rc ''yet' but I have seen both rc test flight and bonafide pirate have failures in thier rc link and if they'd had the redundancy Ardupilot offers it would have saved a lot of panic as in both cases thier craft went into return to home and then loiter and they were expecting to have to wait for the battery to die and for the craft to fall out the sky! That's pretty much what happened to rc test pilot but bonafied pirate opened his tx (dragonlink) and discovered an blown and shorted capacitor and managed to regain control by removing it from the pcb before his plane ran out of power. Not sure how far you fly but 2.4 ghz amps are easy and cheap to get but I've found 5.8ghz amps in both 2w and 5w flavours that support bidirectional communication but like with the 2.4ghz amps, they have a maximum input power of 100mw/20db and you would need to change your wifi modules to lower powered ones if you went down that route. I've been using 2.4ghz amps on my rc for quite a while and they work well, I fly several miles out and cloud surf on 2.4ghz 😀

[@thecraftking113]

Now I need to invest into some pi equipment .. why did I pick arduino LoL😂✌ very cool .seems pretty simple to get up and running .

[@CurryKitten]

To be fair, very different platforms. I wouldn't be convinced that the Pi could be relied on to put out a 22ms PPM stream and keep accurate time... because it's also running an OS, but I know I can do that easily on an Arduino.

[@ghulands]

Hold off until 2.1 when they support Nvidia Jetson boards. H.265 encoding will be where its at.

[@thecraftking113]

@@ghulands interesting thanks for the tip👍😊

[@avsaase]

Looking forward to part 3! Are you going to solder the usb connections? I haven't been able to find much info on how to do that. I'm also interested to see if you can replace the antenna's with the standard fpv antenna's we all have anyway.

[@CurryKitten]

A slight delay of 2 failed zero's, but the 3rd one is (hopefully) a charm. I was going to test it today, but the wind chill factor stopped me. Hopefully out with it tomorrow. I kind of half-committed to the soldering - in that I didn't want to mess up the (expensive) adapter, but did solder power/data of the Pi to connect to it

[@avsaase]

@@CurryKitten The price of the adapters is what is keeping me from from diving into this project. I'm considering buying some cheap ones from aliexpress, but I've heard they sometimes use a different chipset than advertised. Are you powering the adapters straight from the Pi, or separately? And do you know the power usage of the whole goindPi and airPi setups? I want to keep it very compact and mount the groundPi on my goggles.

[@CurryKitten]

I found cheap ones with what they said were the right chipsets, but then I couldn't find the power output. There are the Taboo cards which are meant to be good, but it seems a bit of a lottery about how long things can take from the Aliexpress sellers. I'm power the adapters via the pi, but each one has it's own BEC to handle the throughput. I find going overboard and giving using a BEC that can handle 5A is best. I was using some which could use 3A and even though it wasn't drawing that much, they tended to overheat

[@avsaase]

@@CurryKitten Do you have a link to those cards? I may be able to borrow a pair of AC56's a friend has laying around, but I can't solder those the the Pi.

[@anarpearls9785]

Very cool. Do you know how we can connect a RC Transmitter (like Taranis) to RPi for openHD based rc control?

[@CurryKitten]

Yes - I do cover this in the next few videos. My first drive of the car is all done through an RC controller plugged into the ground Pi. Essentially you just plug in via USB with some config to do in inav and open.HD

[@adilsongoliveira]

Great video! I was wondering why they didn't use something like an android cellphone/tablet as the base station. I believe it has all the necessary hardware features and one can connect USB devices to them as well.

[@CurryKitten]

Not sure - standardisation I would guess. Although Android is an OS, every single phone manufacturer make their own branch and some devices can talk over USB, whilst other can't. There's also a lot more open source drivers out there for linux that can be easily ported over for the pi

[@adilsongoliveira]

@@CurryKitten Well, they could recommend the brands and models as well, most of them can talk to USB devices via a USB on-the-go adapter and Android has a very large device support (it is derived from linux anyway). I understand why the raspi, but an android cell/tablet would be so much easier.

[@CurryKitten]

Well, the beauty of an open source project like this is, of course, that someone could simply port it over to Android and go from there

[@flyingrock6381]

the latency does not look that bad!

[@CurryKitten]

I really couldn't tell there was any in those tests, but it seems more appropriate to move the ground and air pi's further apart.... hence part 3 :D

[@flyingrock6381]

@@CurryKitten looking forward to it! Also the app implementation is pretty slick for a free piece of software... Lovely to see you doing this series Wayne! Cheers

[@fazrulrusdi3709]

Great project.. Can we integrate it with ardupilot?

[@CurryKitten]

Yep - a lot of guys were flying Ardupilot on fixed wing. It can understand Mavlink, so is pretty easy to setup

[@avrahamcohen2134]

How did you power the monitor with the PI4? since you used pin 4&6 to connect the monitor to the PI, which GPIO did you use for powering the PI? You didn't mention anything about it.

[@CurryKitten]

The Pi is being powered via the USB-C cable I made up which connects to the ESC which can deliver 5A at 5v

[@luckyflyer1408]

Thanks for your video .but for the flight controller with 5v base serial telemetry ,Is there any solution to make it suitable for Pi zero 3.3v base telemetry ?

[@CurryKitten]

Yes - or at least i think so, via a logic level convertor. Like this one shop.pimoroni.com/products/sparkfun-logic-level-converter-bi-directional?variant=7493045377 I ended up buying one, but I moved over to an iNav FC instead so never tried it. But if you google logic level convertor you should be able to find a bunch of places you can find one

[@AislingVision2012]

Hi, For bench testing here, it looks like you are using only one Wi-Fi adaptor and relying on the Pi4's internal Wi-Fi on the base unit. Or have I missed something....... On second thoughts, another adaptor is probably out of shot. (I'm wondering if the Pi's internal Wi-Fi can be used for short range testing?) Thanks.

[@CurryKitten]

There are two of those wifi adapters. One for the base and one for the air pi. If you can't see it, it's out of shot. Open.HD looks specifically for an adapter, so won't fire up on it's own wifi, it does make it available to connect to for devices using QOpenHD, or for ssh (if you enable it)

[@KonuralpBalcik]

Why don't you use the built-in wifi module?

[@CurryKitten]

Because the Open.HD software needs specific chipsets on wifi adapters so it is able to modify the way that data is sent. That aside, the range and power of the built in wifi is lower

[@ebikefe]

Thanks for the video. Can you share how you fixed the read-only issue? Thanks. PS: I am asking because that issue still isn't fixed in the firmware.

[@CurryKitten]

Sorry for the delay - I just had to go back and search. If you run sudo -s and then run the ro command it's ok. I think I was maybe just doing a sudo su - before. But I can't remember :D

[@AndyPorter79]

Can we use a 915mhz USB to Lora dongle in place of the wifi dongles? Lora can tx out to 5km

[@CurryKitten]

I'm not expert on radio systems, but as I understand it the bandwidth needed to transmit HD video is beyond what a lora device can handle. To put it into perspective though, people have flown OpenHD to 100km!

[@tsmith6669]

hi i have a Galaxy Z fold 2 cannot find Q Open hd in play store ?

[@CurryKitten]

It's not in the play store (not sure if it will be in the future), but you can download the .apk file direct to your phone and install it. Get it from here github.com/OpenHD/QOpenHD/releases/tag/0.4.0b17

[@ronronchau]

is this possible to be installed to other linux SBCs other than raspberry pi? just wonder

[@CurryKitten]

Not currently, but the plan is to support it. I know there's been work done with the Jetson Nano. There's a list of supported SBCs here openhd.gitbook.io/open-hd/hardware/sbcs

[@ronronchau]

@@CurryKitten I see, looking forward to see more powerful but smaller(with camera interface) could support for the drone side

[@wongsorc6918]

hii.. i get alot of glitch on more than 100 meter, why? iam using pi zero in tx, pi3B on rx

[@CurryKitten]

A few things from the community cropped up about this - 1st is any other wifi traffic near you, and the other is connecting your phone via QOpenHD as a secondary display messing with the signal - in tethered mode as well apparantly. I don't have any great detail on this, but worth experimenting with

[@adbas6201]

I like it ( I am flying with openhd since 1 year). Can you please add the reference of the touchscreen ?

[@CurryKitten]

Sure - a few people have asked exactly what I'm using, so I'll add some links in the descrioption

[@B0w1eWu]

Seems that the OpenHD image is still based on raspberry pi OS? Would it be possible to connect some other accessories to air unit Pi? Then the pi can do more in the sky. XD

[@CurryKitten]

Yes, but it depends what. Multiple cameras and some other devices have been added. Check the Open.HD wiki for more info

[@georgeaura]

Can you link the network adapter you used

[@CurryKitten]

Sure - I got mine here www.ebuyer.com/741447-asus-usb-ac56-network-adapter-usb-ac56 there's cheaper ones that can be had/build but I paid a bit more to get it quickly. Check the wiki for what's compatible though, because there's plenty out there which don't have drivers on the pi

[@avrahamcohen2134]

Hello, great video! I am new to openHD (as of yesterday). This can be a great solution to my quad. I do have a simple question for you. According to your knowledge and experience... How can I use a camera switch (I have 3 cameras on my setup)? I am using 3 cameras that provide an analog signal and not digital. Also, now that I think about it, how can I use more than 1 camera on this setup? Thanks.

[@CurryKitten]

Quick answer is you can't in the scenario you are talking about - as you can't simply use an analog camera - as you have to feed the signal into the Pi's CSI interface, so you need to use a Pi camera or something that converts HDMI to CSI. There may be things you can do to switch these cameras but they are less obvious

[@avrahamcohen2134]

@@CurryKitten And what about USB cameras?

[@mosephina]

Hi Wayne...should it all work out, do you plan to market a kit to retrofit existing analog fpv equipment to become digital?

[@CurryKitten]

Nope - I'll simply be listing what I do (or did) to fit things out to give people some sort of benchmark for what you can get. Ultimately there are quite a few other camera connections, flight controllers, and other things to try, and it's being developed all the time - so it'll be a long time (I think) before a more standardised version appears

[@rodolforodrigues4044]

Is it possible to run this software in banana pi m2 w?

[@CurryKitten]

No - not so far, but perhaps things will change in the future

[@panschiri]

i want to build it with 6s Battery is there any issue?

[@CurryKitten]

No... and yes :) The Pi runs on 5v only, so you need to ensure you are using an appropriate BEC that will run 5v at 3A for it (and can take a 6S input) the rest of the power and how it wires into the rest of your equipment is business as usual

[@panschiri]

Thanks

[@georgeaura]

Whats the antenna on it for, because I have an antenna on my pi that's in my robot but don't know how to get it to use the antenna for the connection I ask cuz mine is only using the wifi ant that's on the board not the usb wifi ant

[@CurryKitten]

The wifi adapter on it is an ASUS-AC56. If OpenHD finds a wifi adapter it can use, it'll use it automatically. Otherwise it'll sit there telling you it can't find any wifi cards.

[@stevehughes-z7v]

has anybody looked at adapting the uavpal softmod for which hacked the wifi signal to a 4g sim card data connection via a dongle to openhd?

[@CurryKitten]

Not that I've seen - but someone has done 100km with wifi (albeit with quite different antennas)

[@qbertatx]

I'm just starting to build this. Just collected all the hardware. What I'm wondering is if I can side load this app onto my Oculus quest 2. And if I can't sideload the app I can probably use Virtual Desktop to give me one huge screen. Probably not in VR but, definitely IMAX size. Anyone try this yet ?

[@CurryKitten]

I've heard mention of people sticking the QOpenHD app on to Occulus, or at least talking about it. The advice is generally not trust QopenHD to fly with, but everything is very experimental to start with anyway! Check out the telegram or discord group to find out for sure if the Occulus has been used and the results

[@qbertatx]

@@CurryKittenThanks for the reply. I'll head over to the discord. Maybe the Oculus would be ok for someone to fly along but not to pilot with.

[@twinturbostang]

I didn't think the Pi Zero had enough horsepower to run this. Can you reliably use one as the Air Pi?

[@CurryKitten]

People certainly are doing so. The zero is pretty much maxed out thought so it won't be getting any new features in that the other models or Pi's would

[@zanderyoung2915]

👌

[@crisarcher77]

Hi :-) Do you have progress in this project? everyone here is impatient :-)

[@CurryKitten]

Have a look at the community post I made. Everything was all just about done and I was ready to start on my iNav and Open.HD ground vehicle but then I managed to blow a Pi Zero (my fault) then replacing that, I had a failure in the GPIO (not my fault) so I'm having to return this one and try and get yet another in a fun third-time-lucky situation.

[@wongsorc6918]

hii.. can you share the diagram?

[@CurryKitten]

Which diagram?

[@wongsorc6918]

@@CurryKitten connection diagram between FC to Raspi.

[@caringcenter5375]

@@wongsorc6918 wiring

[@drifter1949]

thanks for the videos, I was able to get mine running easily using 2x Pi 3b+ and 2x Asus ac56. I am using my FPV screen so I don't have touch screen and tried connecting my phone but I don't know the password or where to find it. Any help will be appreciated . Thanks Robbo

[@CurryKitten]

I've had a long break from this, but two more reviews to do and I'm back on it. Until that point I can't quite remember if you join the wifi hotspot from the Pi in order to connect your phone via QOpenHD. If that's it, the password is wifiopenhd as documented here github.com/OpenHD/Open.HD/wiki/Software-~-Advanced-~-WiFi-Hotspot

[@drifter1949]

@@CurryKitten thanks for the quick reply, will try that tomorrow, getting late.

[@drifter1949]

Yes that password did the trick. So happy, thanks again. Cheers Robbo

[@lurgy1]

I just accidentally acquired 2 raspberry pies, ummmmm

[@CurryKitten]

It sounds a bit like you went shoplifting :D

[@lurgy1]

Lol. My dad has them for a project and no longer needed them

[@its_Savian]

jusy bought the dji fpv v2. will I'm fu*k*d 🤣 this is amazing i want one!

[@CurryKitten]

Quite a different beastie to the DJI FPV system. Good news is it's cheap enough to set up and mess with whilst keeping your DJI stuff on your fast quads

[@its_Savian]

@@CurryKitten how much did it cost on total build ?

[@CurryKitten]

I think I spent around £150-£200 getting various things, but I bought more than I need. To price this up you are looking at a Pi4, pi zero, the zero cam, and the USB network cards (which are the expensive bits) There's links in the description for exactly what I bought, but you don't need all of them

[@markgiles8527]

Doesn't work with iNav? I have it working with Cleanflight. Can't get the GPS to work. Some issue with the ports. So I install iNav. Say port setup (this time gps works) but not working. Guessing OpenHD doesn't work with iNav, even though it's ment to work with iNav. I totally understand now why some just don't bother building their own multi rotors and just go out and buy a consumer drone. Wasting so much time on these broken systems!

[@CurryKitten]

The problem I was getting with iNav is that iNav doesn't format the mavlink packets quite correctly hence my compass being wrong. There is actually a workaround for this in the osd setup (someone told me about this after the video) but should be fixed in iNav 2.6. Its certainly not a complete and finished system - it's one for people that enjoy getting things going. But if you are having specific issues in things that should be working, then drop in on the Open.HD telegram group and talk it through - very helpful people, and the issues get fixed up very quickly as well

[@markgiles8527]

@@CurryKitten Well, I have installed the latest update 2.0.4 (i believe) and have connected the FC to the AirPi using TLM2 port. TLM1 works with the radio and I've connected to Mission Planner. Rx to Tx and Tx to Rx and all that good stuff. I've change the SrX_ settings, like was mentioned. Not sure about the baud rates. OpenHD says to use either of two. Ardupilot says connecting to a raspberry pi companion computer to use a totally different baud rate. I get the video streaming and that send telemetry; signal, cpu usage, temperatures. But can't connect a FC to a AirPi or OSD telemetry. Amazing it doesn't work seeing how many people using OpenHD use Ardupilot already. Yet it doesn't work with Ardupilot. You'd think the OpenHD would at least work with that. Right?

[@ThomasShue]

Can this broadcast to fatshark HDO goggles?

[@CurryKitten]

Depends what you mean by "broadcast". You can simply plug in the HDMI cable from your ground Pi to your HDO's and get the picture that way

[@beboba2498]

There is like at least 200ms lag in video

[@CurryKitten]

I don't think it's that much - but it would be useful to be able to measure it in some way. I'll attempt to look into that

[@kashifmaqsood]

@@CurryKitten one low-tech way that I use to measure latency is to run a stopwatch in front of the camera and then record a short video where you can see both the stopwatch and its video (ground-pi screen) at the same time. Afterwards, just replay the recorded video , pause it and notice the difference between 2 stopwatches :). Not to mention, the stopwatch must have milliseconds visible

[@TheTonstar1]

To much gaffer tape for me 😳

[@CurryKitten]

That's the stuff you use instead of solder isn't it Tony :D

[@TheTonstar1]

@@CurryKitten that's exactly what I mean

[@TailSpinRCSpain]

Super Pi hacking Wayne !

[@CurryKitten]

It was fun, I haven't got to ssh into anything for an age. The Pi4 feels really quick. I had an original Pi model B and it's cpu bound all the time just running the basic OS. The 4 feels like a proper computer and it's super cheap. I'm impressed !

[@TailSpinRCSpain]

@@CurryKitten I have the Pi 2B, haven't touched the console in years. How I discovered FPV was buying parts (resistors, diodes, LEDs etc.) from Ali Express in January 2016 to do GPIO projects, the Pi Hut wouldn't ship the Zumo robot kit to Spain. I saw a side-bar advert for the Cheerson CX10 nano kwad. Watched Quadcopter 101 and then bought the Syma X5C-1, the rest is history. LOL

[@brandonnorris1026]

Eventually we might not have to pay 700-1200 dollars to go digital yay

[@AdrianoCasemiro]

DJI is doomed. Eaten by a cat. Or a kitten, rather.

[@CurryKitten]

Haha, I wouldn't say that - but it's nice exploring an alternative

[@AdrianoCasemiro]

@@CurryKitten The OSD looks beautiful, I think it's a matter of time before some industrious hobbyist shrink the electronics down to the bare minimum and tailor the system to our needs and we will eventually fit into a small quad.

[@markgiles8527]

If you want to use OpenHD with a PIxhawk Cube don't bother. It doesn't work!

[@CurryKitten]

I was just answering some comments this morning and saw a few from you on Open.HD - you have a cube then! I did a quick search in the telegram group, people are using cubes successfully. I don't know why it's not working for you - but I would suggest the telegram group for seeking some help. If you can show a pic of yoursetup with the wiring visible and a good description of what you've done, I'm sure you'll get some useful suggestions

[@markgiles8527]

@@CurryKitten I will have to do that because this doesn’t make any sense

[@markgiles8527]

@@CurryKitten I commented on Open.HD on Telegram. Added some photos and tried to mention what I have done.