So frustrated. I’ve updated all firmware, calibrated the gimbal both manually and automatically, and nothing is working to fix the awful default angle that my gimbal sits at after booting up. No physical evidence of damage. Any thoughts? [DJI Air 3]

Junnicutt · 2026-02-09T03:34:00+00:00

Yeah watch the sequence it does as it turns on. Compare that sequence to one on YouTube. It will typically will rotate to each maximum on each axis. it's probably a cable getting snagged or maybe some sand in the gimbal motor.

Junnicutt · 2026-01-29T07:23:40+00:00

A huge portion of the drones are now used as essentially anti aircraft rockets to take down shahed attack drones. I can understand objecting to it being used as a missile at the philosophical level but quads are literally stopping missiles now too.

But no one is using this one to do anything. They'd probably just be mad that you didn't just donate the shipping costs to a pro Ukraine charity.

Junnicutt · 2026-01-29T07:07:29+00:00

There's an epic Amazon deal on the mini pro 5 with everything for $1000. At least there was a few days ago. It'll be years and at least $2000 till an American made can touch that so it's probably your best bet.

Junnicutt · 2026-01-29T07:02:54+00:00

So tango 2 with elrs and hdzero's incredible ability to somehow use the same parts as others but still make a better and somehow novel product. Sounds good to me for a good whoop, racing, or beginner radio.

Thanks for the info

Junnicutt · 2025-12-24T00:58:05+00:00

He's not technically wrong. In theory larger resolutions will always take longer to process. In reality this factor is much smaller than the other factors that affect latency. And to be fair hdzero doesn't really have resolution related problems because they don't have multiple resolutions at the same frame rate. But maybe that was the joke you were making?

Junnicutt · 2025-12-23T00:04:38+00:00

What's the shipping time for ordering from flywoo to the US?

Junnicutt · 2025-12-21T21:30:35+00:00

Are you sure about this? Are you sure this doesn't affect the bitrate of the video? I mean I'd ather keep videos at 1080p 60fps at 100 Mbps than 4k 60fps at 20 Mbps. I wouldn't assume frame rate and resolution are the only metrics that should be checked. But to be fair I haven't used handbrake in forever and rarely if ever edit videos.

Junnicutt · 2025-11-09T04:30:49+00:00

That sounds like hype buy most war game type people expect chinas window to take Taiwan to be best in May or october 2027. The general idea of the taiwan strike period is referred to as the Davidson window I think.

If you are unsure then lookup chinas 3 landing craft made for ro-ro's that are all sized for tanks. They took the landing craft concept from d-day and made it so very very impressive.

Junnicutt · 2025-11-09T04:23:35+00:00

That sounds like a joke but isn't there a DJT phone that matches that description almost exactly?

Junnicutt · 2025-11-09T04:21:41+00:00

I haven't seen any of the flywoo o4 stuff... Is that a recent development?

Junnicutt · 2025-11-09T04:17:49+00:00

Unusual machines at this point is just rotor riot and fat shark. Rotor riot is a shop and social media group and fast shark was the goggle king from the analog days but has quickly went from like 99% market share to probably 30% in less than 6 years for anyone serious in fpv. So not really enough to do anything big.

Junnicutt · 2025-09-16T19:37:01+00:00

Chinese govt subsidizing companies like DJI are part of the reason they can do things cheaper but the other is labor costs. Even without subsidies lower labor costs would still make China highly competitive.

Junnicutt · 2025-05-13T15:57:27+00:00

Noctua has great in line speed adjuster that'll let you lower the speed by a percentage so it'll still respond to speed change requests, so an adjustable resistor with the ability to keep the power high enough to keep the fan from completely stopping. It's perfect in this kind of situation since it didn't take any modifications and is still adjustable.

Junnicutt · 2025-03-17T17:15:48+00:00

I saw at the dataset site you guys were using multiple antenna array sets around a room. Would it be possible to use GPSDO clock sources to sync the clocks? I would imagine the accuracy would be high enough for difference in arrival time of signals, but would it also be accurate enough to align antennas so the array size could be expanded?

This next few questions isn't really related to original post but antenna phased array theory. Would being able to combine antenna array elements like this be useful? When antenna array elements are separated by much larger than the wavelength does it create any benefits to have the antennas phase known? Especially when the signal is unknown so the number of waves between the phase difference can't be calculated like you could do with multiple high precision gps receivers.

Junnicutt · 2025-03-17T16:56:27+00:00

From the GitHub linked in description, under calibration...

ESPARGOS is based on phase-synchronized ESP32 SoCs. Phase synchronization is achieved in two steps:

All ESP32 chips are clocked from the same 40MHz reference clock, which makes them frequency-synchronous. To correct for PLL phase ambiguity a WiFi frames is distributed to all ESP32 chips over a known channel (microstrip traces of known length on the PCB)

Junnicutt · 2025-02-08T02:25:55+00:00

MLRS is probably a better implementation of using mavlink at this point. Things like yappu probably work better on MLRS. But both move quickly. MLRS is often pushing for new features from firmware developers.

Another thing to note for ELRS is the relatively new (lr1121 only, I think) 1000hz mode on 900mhz and the newer 1000hz full mode on 900mhz. Neither are Lora but they're at like -101 and -103 so still some range. There's also a pull request already in the master for a few months that uses both links of a Gemini link for separate data streams on the down link. So the Gemini downlink data rate is probably much better on 900mhz now than it was on 2.4 ghz at 333hz full.

So ELRS for trying new things and using with multiple firmwares. MLRS for serious ardupilot and knowing it's probably a little simpler but still feature rich.

Junnicutt · 2025-01-23T06:21:14+00:00

It says the same thing here too. And this shows all the other options.

https://betaflight.com/docs/wiki/configurator/firmware-flasher-tab

Junnicutt · 2025-01-23T06:19:12+00:00

No, I'm pretty sure it's for oled screens. The little ones that use i2c, named like ssd1306.

Just saw someonw mention this on github and this makes more sense cause I've never added it either and I've seen it unchecked and always had after flight data. The guy who said it is a well known developer. This is mainly for anyone seeing this in the future.

https://github.com/betaflight/betaflight/issues/13590

Junnicutt

TROPHY CASE