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Some questions on O4-lite...
613 9 1-18 21:39
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Ryukin
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1) O4-lite current
Anyone tested the O4-lite's current consumption at 5V BEC?... the is no max current consumption specification on DJI website...  I'm using GHF435AIO flight controller powered by 4S battery.  This FC only has a 5V 2.5A BEC.   My previous 350mW walksnail mini 1S consumes about 1.1-1.3A at 5V.   So I guess this 1W O4-lite current consumption could be 1.3-1.5A and should be OK for GHF435AIO

2) Thin layer of oil on PCB
There is a thin layer of dried oil on the PCB.  I do not know if it is conformal coat or some no-clean soldering flux from PCB assembly process.   Anybody know?

3) Acrylic Coating on O4-lite
O4-lite is single PCB without that metal heatsink.   I need to apply some acrylic coating to make it dust/dirt proof.  Anyone tried acrylic coating on O4-lite before? Any 2.4g/5.8g signal degradation, or heat dissipation problems?... i saw on youtube people applying acrylic coating after de-case the O3 or Vista.

4) One tiny square camera lens protector/filter
The square camera lens protector cannot be used after the O4-lite camera is inserted into the mounting bracket.  That lens protector came with the O4-lite product.  Is it simply use the camera without that tiny square camera lens protector?

5) SBUS Output, Still NO RSSI and LQ?
I could get the SBUS output from FPV-RC2 working.   But nothing at channel 13 or 14.   Anyone has some luck or need to enable anything?

6) O4 in FCC mode
Is it still the same of putting that ham_cfg_support file on goggles2 ?

Many Thanks!

1-18 21:39
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Depp
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6) I heard about this (and can confirm it for the O4 pro): the ham file works the same as with O3. In my case I didn't have to re do it - the settings from the O3 carried over to the O4 Pro...
1-18 22:55
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fichek
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1) I haven't tested exact currents, but JHEMCU should be fine as they have decent 5V regulators in my experience. So far the only 2S+ board I found that didn't work was Fettec. I've read somewhere 10W is max the Lite can pull so 2.5A should be perfectly fine. And if you're having issues, just try lower power and/or resolution.

2) and 3) no idea, but I would be interested in finding out, please share if you find this info elsewhere

4) that lens protector was just there to protect it in shipping since everything just came in a bag unlike all previous units that were packaged in folded cardboard that held all parts separate

5) I don't think that was or ever will be a thing with DJI

6) yes
1-19 02:24
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Ryukin
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hi, guys, thanks for the answers!

ok,...
- O4-lite No RSSI, No LQ from SBUS, same as O3
- Had not assembled into drone yet.  I have 3 channels on 40MHz bandwidth.  So i guess is already in FCC mode.
- Activation sequence of O4-lite is weird (not the same as O3), It is after first Goggles pairing then you could activate the O4-lite.  Seems like dji wants to know how many people using Goggles2, Goggles3 or GogglesN3 on O4.



1-21 00:45
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fichek
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Ryukin Posted at 1-21 00:45
hi, guys, thanks for the answers!

ok,...

If you ever had the ham file on your goggles, it will automatically unlock O4 too, yeah. Not sure about activation, I am almost certain I activated both of my units via DJI Assistant before ever binding them to either of my goggles. Will have to check with the next one that arrives.
1-21 15:11
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Ryukin
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ok,..

got my 3rd piece of O4-lite just came in.  i think activation does not need goggles binding first, what activation needs is whole O4-lite module fully powered.  meaning O4-lite firmware update can be USB powered, but activation needs whole module fully powered from flight controller connector.   i was using USB powered for firmware update with new O4-lite, and no activation steps until O4 fully powered.

anybody has good idea of what are the main advantages of O4-pro over O3?  i already have 4pcs of O3 and i'm a slow flyer.   I might want to simply stay with O3 and O4-lite.   O4-lite is attractive for me to replace my Walksnail Mini 1S, but for O4-pro i still cannot think of significant improvement  (from O3).

thanks!,...
1-22 05:34
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fichek
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Ryukin Posted at 1-22 05:34
ok,..

got my 3rd piece of O4-lite just came in.  i think activation does not need goggles binding first, what activation needs is whole O4-lite module fully powered.  meaning O4-lite firmware update can be USB powered, but activation needs whole module fully powered from flight controller connector.   i was using USB powered for firmware update with new O4-lite, and no activation steps until O4 fully powered.

Massive low light and dynamic range improvements and a bit of range/penetration improvement too. If O3AU works for you and you're happy with it, no reason to replace it though.
1-22 14:17
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Xviews
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1)


1-22 20:10
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nOxxxx
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I'll add one more to the questions. Does O4 broadcast Remote ID?
1-23 11:49
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fichek
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nOxxxx Posted at 1-23 11:49
I'll add one more to the questions. Does O4 broadcast Remote ID?

No. It's not a requirement for video transmitters so I doubt we'll ever see that happen.
1-23 23:59
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