DJI O3 Air Unit Power Requirements Updated - This Could Catch You Out
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- Опубликовано: 1 дек 2022
- DJI O3 Power Usage and Bec reequipments for Digital FPV and Drones
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Still believe this is what happened to my iflight chimera. Was to fast and lost control as well. Thanks for all the detailed testing Ian.
This is why my O3 is shutting down in few minutes because of overheating? I use a S4 1300mha.
The Chimera7 Pro V2 you got for a review has a FC that's sold as 9V 2A. It's rated and tested for >2.5A constant and hot (without cooling) which can supply >22.5W. The measured maximum power draw is 15W and only when running the ham file.
Since I've explained in other videos, we have feedback from DJI that there's a firmware issue with the Radio Controller 2 that's being worked on. The network generated by Goggle, O3 and RC2 randomly fails and doesn't recover.
@@xingtheiflightinsider do you have a source where it is saying that its rated and tested for >2,5A?
@@Mojo97779 yes, my source is iFlight.
@@xingtheiflightinsider okay, because i bought an chimera pro V2 (which will arrive next week) and i saw that Video from originaldobo, which made me think of wether the BEC is sufficient or not. But 2,5A should be sufficient, i guess, for the O3
Great to know this info about the O3! Thanks for putting in the work for us!
Thanks! I'll keep this in mind when I begin setting up the O3 unit!
Great video. Very helpful, I'm definitely going to choose my flight controllers more carefully or use a separate Bec. Cheers dude
So many things to learn about the O3 unit! Still liking this one so far!
Pretty interesting indeed! Thanks, Ian! 😃
Stay safe there with your family! 🖖😊
Thanks so much, your videos are so useful!
Wow thats good know thank you as im gona be buying my 1st 03 air unit soon...cant wait to try it.
Thanks so much for making this video. I'm mocking up an aos 5 03 frame with an 03 air unit and full size mamba stack as we speak.
Thank you for the great review.
I’ve seen iflight had some issues with the current regulator and I wanted to power the DJI O3 directly from the battery.
Do you have a diagram or additional equipment that will make this possible without risking the O3 unit?
Straight to batt for my units. My logic is if you overload a circuit on the FC its more likely to cause issues with the flight and I suspect higher chance of crashing. If you have a problem with voltage and lose an air unit you could still RTH or float it down in angle mode and have less pieces to pick up. I can only guess that the engineers at DJI already have good filtering in the air unit circuit to deal with things since they rate the input up to 6S.
Hello, I need help! - I have a new set of DJI Goggles 2 and a New Dji 03 Air Unit...
I want to simply run the camera without a flight controller so I can install it in an RC Car.
All I need to know is how to get power to the Air Unit using an independant 4s Battery.
I don't need all the OSD stuff, Just powered on, so I can install the Firmware on both the Goggles and the Air Unit. What cable do I need to make up to get this going? ( I also have a fan and a heat sink ready for it too) There has to be a simple way to power it up surely without '' all the quad gear '' If anyone can help me, I'd be willing to pay for your time. I live in Australia and really want to use the system.
I have searched what seems like the entirety of RUclips for what I've just explained, But everything is about quadcopters. Hopefully someone can help me out here. Many thanks in advance.
I always use the vista via Vbat since it came out and never had problems. Once a time I use it with the flight controller i had black screens in hard moves.
I'm so happy to hear we europoors can still use the fcc hack on full power.
Would u recommend powering it trough Vbat /bec on FC / external bec. in terms of voltage spikes?. I had several issues on the vista wich i think was caused by spikes. and yes im running big caps and all that.
@Mad's Tech do you have the same video in relation to VTX HDZero Freestyle 1W?
Hey man, I love the video! Any chance you could share what batteries are compatable with an o3 air unit for an RC car? I'm having trouble finding the right one. Thanks!
Thanks Ian!
gotta love t-motor, 10v 3a on their dji plug on the f7 mini
Hi I have a nazgul evoque 6s and I've replaced the caddx vista with dji 03 airunit and used the plug and play will that be ok is thier a bec system in place with that fc on the hd plug IFlight BLITZ Mini F7 F722
I bought an O3 air unit to put on an RC airplane for FPV conversion, how can i get o3 to transmit maximum RF output if its not connected to a FC board. ( in your demonstration you noted it wont go to max output until FCU is armed. An hacks through the goggles menu maybe ?
Hi any advice for installation in to a RC car (traxxas xmaxx) never done this before any help with set up would be very helpful. Keep up all your good work well done
Hi there, I hope you can help. I have 2x O3 units, 1 in in my flywoo explorer lr 4 and works perfect with gyroflow. My other unit in my freestyle quad does not... when I import the file (flying with wide screen option 16x9 with dcinelike) the video in gyroflo is just black. Disabling stabilization shows the video again. Using Rocksteady has no issue. Air units are on the latest firmware. Any ideas?
Also, how do you get the country code not updated error message to go away in the bottom right ?
According to the interview put out by Chris Rosser, DJI is saying that because the O3 system is "auto" frequency hoping they are able to out put more power than we could prior when we were manually selecting the channel. 2w perhaps? 🤔
Really useful, thanks. How do the power requirements compare without DVR recording enabled? I'm curious as to whether the system uses more or less power than the Vista like-for-like, without DVR.
Dvr uses more power. Just found this out the hard war
I have a question will this system work for the traxxas Aton drone because the Aton drone has a jst plug connection ? Need to know if you can help me I appreciate it. Thank you very much.
I have the skystars h743hd fc. I would power my o3 from 10v but I cant find the maximum current nowhere in the documentation. This is why I power it from a pad called "filtered vbat". According to the documentation this pad is supposed to power the vista. Yesterday while flying (it was very windy) my o3 rebooted mid flight. Could the adjustments that the motors had to constantly make cause a voltage spike and force the au to reboot?
I recently fixed my iflight nazgul evoque f6d with this!!!
How would you wire it to the battery? Cut wires? but solder on where?
Some FC's did have the digital port that output tied to vbat, with all the 'use with Air unit' warnings attached. these would work asis. It applies to the Beast F7 AIO, not the Beast STD AIO 30mm F7 though it has a 10V regulator built-in that is insufficient. The STD unit incorrectly has the warning attached also, which I never figured out why with a 10V regulator in there. I believe the STD was simply a replacement product made only for their ProTek 35.
Hello, iam trying to put the o3 unit on my Protek35Hd. But when i plug the lipo the o3 doesn´t turn on.
Great video. Can you make a video of 03 air unit and what kind of aftermarket antennas to use. I ve seen it is multi band dual polarization that confuses me a bit
If your not using the DJI Remote then don’t use dual band antennas. Just stick to 5ghz ones
Just had a nightmare build tried so hard to be careful and of all cords to switch I swapped the air unit ground and power. Is it done for good or anyway to fix?
What FC would you recommend for easy use with the O3 air unit? I don’t want anything fancy. I just would like to plug it in and go without soldering
Hello, will the Air unit give the full Power when only powered Up in a battery? I have a Problem with my pitlab flight-controller, there is No arming Like on inav or betaflight. The range with this plane Just 1km 😳 Same Air unit with inav plane 7km. Maybe an Idea?
I have a Zeus F722 that has a 9v/2a BEC for the DJI system, which should be 18watts but that's if it's rated correctly. I have some spike absorbers but maybe I should also just get a 12v 3a BEC. After tax and buying a longer camera cable because they like to ship these with the shortest possible camera cable, I've got $260 in this one o3 air unit. Might as well have $270 in it and just spend the $10 on a BEC.
Just got done moving my power / ground off the BEC from the FC, as I kept getting the O3 air unit rebooting (this on a brand new GepRC Mark 5). Keep in mind, my FC has a 3A 12V BEC (rated). Usually the reboot would happen when high G flip or once, when I belly flopped down on ground just a little too hard (that made me think it was cabling/crack/connection issue). Originally thought it should be when doing high current punch maybe allowing BEC to brown out. Nope...had it happen more often during a throttle down (right after a quick blip). *poof* reboot..no video. Caused two crashes before I'd had it. Too many cables going from ESC out a cable to the FC, out that cable into O3, so I just soldered it direct on the 4S Vbatt. So far (crossing fingers), it has fixed the issue... /shrug. YMMV, but there is at least one more line of thinking for not having a mission critical (video) cut out on you just as you execute a nice snappy front flip aaaaaaaaaaaaaaaaannnnnnnnddddddd.............yeah. Panic. Sigh. 10s later when video came back, I could count the blades of grass blocking the camera. nice. sigh.
hey guys what can cause the O3 air unit feed and recording to become choppy like little glitches in the feed as if you slowed to a lower frame rate?
this is on a chimera 7
How should I connect my 03 air unit for power also what's cap mean is that the capacitor on the battery connection to the board
I thought these units had variable rf power output. I would think it would start low if it’s close to the goggles?
If I understood well, the DJI product manager for Europe, Ferdinand Wolf said during the recent interview from Chris Rosser that the 03 air unit has a variable power output according the requirement of the signal transmitted to the goggles, therefore are you sure your new test is pushing the 03 air unit at the maximum power arming the controller with the air unit being so close to the goggles? Isn't necessary to get the air unit far away from the goggles to get the max power?
Thank you for your review as usual absolutely amazing 🤩
Tried it and I’m not really seeing anything but more testing needed
Do you think the relatively thin gauged wires of FC/ESC stacks running from the ESC to the FC are sufficient to supply all the electronic on board?
NO! Yes, for any one, but the increased failure potential from small wires/connections from ESC, up to FC, then into BEC, then out ANOTHER cable to the O3 for something that is mission critical (had two crashes because something was loose or pulling, and maybe not from BEC).
I just got my first O3 air unit and set things up. One of the things that I noticed is that it seems to heat up quicker when connected to the goggles. During part of my setup, my needed the goggles on for positioning OSD elements and I had to work fast while doing this to reduce it heating up. The next day, I changed ESC settings and it didn’t appear to heat up nearly as much. Because of this, I think the best way to do the first flight with a craft that has GPS is to start with the goggles off until getting a GPS fix. Would love to see additional testing of this to see if I am right about this behavior.
ESC or flight controller settings (besides your msp connection) do not not affect the VTX/ O3 air unit in any way. When you had it connected to your goggles , the goggle was sending a signal to increase the power level as its variable powe.A lot of people power their GPS off of a pad that can be powered by USB, then use a USB connection to get the fix then plug in full lipo voltage. You could also use a fan to cool the unit. Been doing this with gen 1 air units and vistas for years
@@skyweaver3199 I know that the ESC settings do not affect the O3 unit. My point was that I didn’t need to power the goggles on for this like when I was checking to see that the OSD items were not over the DJI ones. Will have to test this more but think that if the air unit has not received a signal since being powered on, it may generate less heat. ELRS modules do this by staying at low power when powered on while using dynamic power until armed. The air unit may do something similar to this. I’m still going to do my next build with the JB F7 and use a switch n transmitter to power down the air unit until I get a fix.
I already have a Hobbywing Xrotor F7 FC. With 10V 1,5A Bec, it's on the edge 15W?
You need 2.0A for not going on low power mode I think
i thought this and the vista didnt go to full power until it was needed?
Will the Aikon F7 AIO Board work? it has a 10v 1.5A voltage regulator for DJI HD system
That will be fine.
Would be interesting to see power consumption at lower signal strength, stick the controller in the fridge?
@Mads Tech Do you know the minimum working voltage of the o3? I'm planning out a 2s long range build and don't know if ill need a boost converter, the landing voltage could be low as 5.8v
as he said... 7.4V is minimum
dji spec sheet 7.4v not an actual working minimum, piss off ya wanker
@ Did it fry? Nearly 2A at 8V.. if it managed down to 6V at nearly 2.5A I wonder if the air cooling of being in flight would keep it alive?
Might be a bunch of people needing a nice BEC…
Any better than others?
What would ideal be?
18v 2a? How much capacitor?
Polulu makes the best regulators i've ever tested 👍
Ciao dall'Italia, connettere unita aerea 03 ad il plug fc , può causare un aumento della temperatura del processore della fc? Per ovviare al problema va bene collegare l'unità aerea alla pad della lipo con un bec che riduce la tensione a 12 v? Grazie per il tuo video😊
Guys is there link for FCC hack on current firmware of O3?
Power =VxA so most becs are 9V 3A which is 27 watts, from your calculation 8V x 1.8 A= 15.2 watts
Idk if it was me dropping the rc link because i just got elrs or moving my 03 to a different frame and a 10v pad but the penetration/performance diffence is wicked. I was not impressed with 9v. Or the dji rc no matter what preset, thats for the avata only.
We used to power vistas direct from battery..... the best way
And still is...
Ian, excuse for my ignorance but where do you get the information on the BEC for an ECS?
The BEC is often on the FC, but regardless, the manufacturers should be spec'ing things out. I'd check the retail site or documentation/manual (if applicable), or contact them directly if you feel so inclined. So the real question then becomes - how much do you trust the manufacturer?
@@abertheham Thank you.
Hey Ian, great video. But personally I would rely on DJI and just wire it to Vbat + cap. When using a bec you can add more protection but at same time you also add an additional point of failure.. I think many people have been wiring their vistas directly to vbat and haven't heard too much problems with them..
7/10 vistas installed (3 to go) directly to vbat +/- cap. never broken one. those are vistas and this is a new AU, obviously, but I agree with your point - the O3 is going to Vbat with a cap when it gets here.
as for power, don't DJI ramp up their output as range requires?
Have you separated the air unit from the goggles far enough to make sure when it ramps up the transmission power it doesn't go even higher
It does not
Hi everybody! I have the speedybee f405, it comes with a dji plug and it delivers 9v 2A… I believe I can install the O3 unit with no issues, right? Thanks!
Yea should be fine.
@@MadRC thank you sir!
"I tested the o3 unit for the first time yesterday, using it on two different planes. One of my planes had an f405 wing control board, while the other had an h743w. At 300 meters, the connection was lost with the f405 board plane, but I didn't have any problems with the other plane and was able to fly up to 6km. I believe that the f405 board was unable to provide enough current on its 12v output."
İ solved issue , f405 controller 4.2 firmware i upgrade 4.3 . When i arm o3 high power status . Thanks for videos
@@brkfpv60 so you need to run betaflight 4.3 and up?
@@LeonSTE ardupilot 4.3
I just installed the O3 on a F7 stack and is overheating, shutting down in few minutes? Any idea why? I do not understand why is overheating like that even when the drone is not armed. Thank you.
It will, that’s normal. It gets VERY hot VERY fast. It won’t actually shut down once armed if you have the MSP configured correctly however 2-3 minutes on the bench is long enough to have issues.
Also make sure you have low power mode turned on.
So latest firmware (production) with ham file still gives max power? That would be great!
Yes
@@MadRC Thanks for the confirmation. Now i can order one ;)
How can I find the file? How can I do it? I have the latest version.. Because of the O3 unit...
It will still works? 1200? I long range..
Hi Mads, has this been addressed in a firmware update or do you still need an FC for max power output? tia
You still need the fc. Nothing has changed. There is some Arduino code out there as well you can use to force it to arm as well
@@MadRC Spot on thanks mate
Not going to full power until armed is a "feature" that helps keep you from stomping on other pilots just from turning your drone on to make adjustments. Good on you for clarifying the situation.
Not really. That’s low power mode. There is no logic that turning off low power mode still restricts RF output.
It basically makes low power mode close to pointless.
The issue is when you are going to use it without a flight controller.
@@MadRC I guess except, like I said if you're going over your settings, including turning off "low power mode", adjusting the goggles, etc, it's not necessary for the unit to put out the highest transmission power until the drone is armed. What's the point of having it output full signal sitting on a table until you're ready to take off? Having it stay in low power until you're ready to fly, helps with battery life, thermals, etc in my opinion. I've seen guys dick around for 5 minutes before actually launching. The only "negative" to the way it's programmed to work is that it messed with your tests. Hahaha! Low Power Mode allows you to fly at low power, right? Again, so you're not stomping on other pilots. When you turn off LPM, it switches to high output once you launch. Makes sense to me anyway... Obviously, we all can have our opinions, right?
@@MCsCreations Um what issue? Wait, how do you use an O3 Air Unit without a flight controller? Technically, the concern is that the O3 draws to much current THROUGH the flight controller BEC. If you're "not using a FC"... well then, you're problems are solved... I'm not sure what you're doing at that point? Setting up a remote camera? Mounting the O3 unit to a balloon? Attaching it to a stick and using it to perform a colonoscopy on yourself? Hmm... I guess there are options!
@@londenard for example I use them on planes and fpv wings without fc.
There is a new FW out to update your AU and your Controller.
Please turn on subtitles
Does this mean that the HAM FCC Hack gives full output power once armed?
Yes.
@@MadRC My quad with an older F4 Matek FC stays in low power mode even after arming. All OSD elements are showing and the FCC hack is on, as the channel check showed. Could be the reason that the BEC is not providing enough power that keeps the O3 in lo power mode?
if ppl are gonna go the BEC I'd be using 3amp or more. that's way to close to two amps and what happens when you get distance between them goggles never a good idea to max a BEC best to double the current draw.
Is this current draw listed by the manufacturer in there specs?
No.
@@MadRC Not good for the end user is it.
No
Hi, my airunit O3 is very hot, I can't figure out how powerful it works. I have the FCC hack installed. Does Airunit dynamically change the power or does it always work at maximum? The power meter showed ~4w in lower state mode and ~9w without it. Can I see the transmission performance in some software?
The O3 does get very hot. Yes it’s somewhat dynamic too. Just use the ham file and that’s the max output you can get. The full 15w is with recording ect.
Yes, indeed, the airunit o3 consumes about 15W while recording, but without it, about 12W. I didn't observe dynamic power changes. The power consumption doesn't differ when in close proximity, even when the signal has almost disappeared. I don't like this approach because why should my airunit O3 operate at maximum power when it's only 5 meters away from me?!@@MadRC
@@alexwarek it’s not fully dynamic and you won’t see it’s behaviour on the power usage.
I am also surprised by the fact that when it overheats, it does not reduce power. Thank you for answering my questions@@MadRC
Are there really any flight controllers out there nowadays with less than a 2A bec?
I think it’s older ones where people convert is going to be the larger issue
@@MadRC I was looking around at flight controllers on a few sites, just to see which ones to avoid, and I didn't seem to find any.
That said, a good many are only a 2A. That really doesn't leave you much headroom.
I think I'll just adopt the habit of powering direct from batt... I never meet a BEC i couldn't burn out.😆
Oh wow that thing would definitely be cooking without a fan unless you run it low power
Just power directly from vbat, enjoy life and go flying guys. Two years i hardly abuse all my vistas and recently the O3, directly from vbat. Never had a problem.
Manufacturer says 6S supported. Why complicate things with becs….
Because of powering the unit to its limit seems risky to a lot. However, I’ve been going straight 6s with a Fettec spike absorber and cap combo. No issues in 8 months solid flying, crashes, tree hang ups, ect
Have you seen the power stage DJI has!? It’s literally half the board space! Pretty sure you’ll be good :p
If you want extra reliability use a separate “non FC integrated” BEC, but honestly looking at DJIs power stage is like looking at art!
we are gonna need 3 amps BECs
Hey man, would you tell me if this one is ok to use?
MICRO BEC MATEK 6-30V TO 5V/9V-ADJ (6S)
* High Efficiency Synchronous Step-down regulator
* Wide 6V to 30V Operating Input Range
* Continuous load current: 1.5 Amps (Max.2.5A 5s/minute)
* VOut 5V or 9V Adj. Default is 5V.
* VOut Load Regulation: 2%
* Standby current:
@ 8 Volt = 1,8 A ≈ 15 Watts
Any downside to powering it direct from the battery pack?
Edit… you answered my question!
I've always used a cap and 6S voltage for vista, and that's what i'm using on my 03 Air units 👌 holy shit 03 is a game changer
@@Fly_High_FPV it’s sure is! I go straight battery with a cap and Fettec spike absorber combo
I use my vistas via vbat and never had problems. Dji Hardware is not so Bad like other FPV hardware.
Hello, I need help! - I have a new set of DJI Goggles 2 and a New Dji 03 Air Unit...
I want to simply run the camera without a flight controller so I can install it in an RC Car.
All I need to know is how to get power to the Air Unit using an independant 4s Battery.
I don't need all the OSD stuff, Just powered on, so I can install the Firmware on both the Goggles and the Air Unit. What cable do I need to make up to get this going? ( I also have a fan and a heat sink ready for it too) There has to be a simple way to power it up surely without '' all the quad gear '' If anyone can help me, I'd be willing to pay for your time. I live in Australia and really want to use the system.
I have searched what seems like the entirety of RUclips for what I've just explained, But everything is about quadcopters. Hopefully someone can help me out here. Many thanks in advance.
You just need to power it from the cable with in the specified range. The red and black cables. However please note that O3 will not go to full RF power even if you turn off low power mode. It needs an arming command from MSP
@@MadRC Thank you kindly for responding!
Yes I have been thinking about these hurdles. I don't mind admitting I am a complete newb to Digital FPV, Unfortunately for me I am elderly with early onset Alzheimer's and this system was bought for me as a gift as about a year ago my doctor advised me to get a ''young at heart hobbie '' and I'm completely hooked on RC Cars and Sail Boats. I have rang around a few places in the city for help in getting them installed. ( I have two 03 Units ) But everytime I try and explain what I'm after I basically lock up and forget. Its relatively easy to remember it, But to speak it out I just end up ranting on about whatever else. I'm pretty much at my witts end now as to getting at least 1 running up. I've watched all of your video's I think on the 03 and it looks fantastic. I really really am impressed by your vast knowledge mate. I wish I could harvest it somehow. Thank you again for reaching out mate.
O3 Air Unit means a 35 K party this month - before Chrismas I bet
Stop using bec's...wire them to main battery voltage to avoid brownouts and avoid bec failures. Super useful information, but this is gonna blow even more Fettec's than the OG
Fettec needs to get their crap together. Great engineering and terrible execution
Totally agree. It’s all about who do you trust. DJI air unit on VBat or an iFlight BEC? I am putting my drone and cameras in the DJI corner. It’s designed to work on VBat and I never had one problem doing it that way. If it has a plug and play connector I pull the wires out and solder them to VBat. That’s a lot of money flying around. I trust the DJI equipment more than a cheap flight controller.
I don’t know. Maybe DJI hires older and more experienced children to assemble their air units than iFlight does to build their boards. 😮
@C Neiner def trust DJI over iMight....iFlight has the worst QC, even worse than Eachine 🤣
@OriginaldoBo had a lot of reports of G4's popping that lil 1.6amp regulator on the OG Air Unit. So this monster gonna kill even more. I became a fettec dealer, but havent been able to get stock from them yet 🤷♂️
@@Fly_High_FPV I work in electronic controls in the commercial refrigeration business and I just never trusted these BEC’s. I had an issue with one early on in the hobby and always use VBat if possible. If something normally draws 1.5 amps or higher it should be at least a 3 amp rated voltage regulator. I spend a few extra bucks and buy higher rated esc’s as well. We put these quads through some extreme voltage spikes and sags. Better safe than sorry.
And I am sorry, but I don’t trust these Chinese FPV companies. There is no accountability. If their shit fails and costs you $500 they just blame you and then ignore you.
UPDATES:
Radio Control 2 V02.00.0500, O3 Air Unit V01.02.0000.
that fix what? DJI has no relase note for that update?
@@DrEvil-yx4vr yes it dose.
But anyway it fixes the blackout and gives more recording options.
@@jfect2 my false, i found it, and make an update on everything. Thanks again.
Please make a PSA that DJI OSD does not work with INAV 🤮
I think DJI makes better shit and the chances of losing your you’re whole rig due to a BEC failure on a cheap cut rate garbage flight controller is much higher then a DJI Air Unit dying from wiring it straight to VBat. It’s designed to run off of VBat and I just trust that feature more than an iFlight BEC. And that goes for all of them. I lost an Insta360 Go 2 on that crash. The drone was a complete loss. The only thing that survived was the Vista!
There is technical theory as to why we do things the way we do and there is real life experience. I always wire Air Units to VBat and never had a problem. Lost about $500 worth of shit due to a HGLRC flight controller with a piece of crap BEC. Never lost anything from wiring any DJI air unit to VBat. Life experience.