I've had this frame sitting on the shelf for ages.  Thought I'd make it a 2S build given the weight of the digital vtx.

• Sub250fpv Nanofly16 frame kit
  
• JHEMCU gsf405a-bmi AIO flight controller
  
• Rcinpower 1002 motors, 22000kV
  
• Walksnail 1s lite vtx kit
  

Power will be some 2S packs I'm going to make up from some whoop batts.  Namely the GNB 380mAh HV packs.  I might forego the balance lead as well, would be an interesting experiment to charge without balance on such small capacity batts.

The canopy is a bit minimalist, so we'll see how that goes.
The lite camera fits in perfectly with the little tpu nubs just sitting on the mipi connector.


Most of the effort on this build is to figure out the best orientation for the vtx and offset to fit everything under a canopy that was designed for an analog AIO with onboard vtx, etc..

So far motors are installed and configured in BF 4.5 (beta) with Bluejay 19.2@24kHz installed.   Tidy!

Interesting, you are planning to run 22000kv motors on 2S? I guess you will be using motor limits?
I have that same AIO running some Flywoo 1002-23000 motors, but on 1S. Not 100% sure, but I recall the Flywoo AIO (1S 5A) that was originally on my build felt quite a bit more powerful, at least before it burned out an ESC. With the JHEMCU board it flies ok, but seems lacking on the top end.

I build a somewhat similar quad:
 - sub250gfpv Baby turtle V6 1.6inch
 - Flywoo robo 1002 23000kv
 - Walksnail 1S lite
 - NeutronRC Mini AIO 2S
    BF 4.5-Zulu and ESCape32 ESC FW
 - Gemfan bi blade 40mm

I use it 1S now, with 450mah. 

Nice, how does it fly? I only have 750mah packs on mine, maybe they are too heavy but running tri-blades so I would expect there to be more punch. Do you find the shafts a little slippery? My props do slip off after pretty much every crash, I might try scoring the hubs like ph2t suggested.

(26-Oct-2023, 02:45 PM)mstc Wrote: Nice, how does it fly? I only have 750mah packs on mine, maybe they are too heavy but running tri-blades so I would expect there to be more punch. Do you find the shafts a little slippery? My props do slip off after pretty much every crash, I might try scoring the hubs like ph2t suggested.

I hated it until changed the awful betafpv AIO with the NeutronRC and ESCapeFW. Now Its a fun little quad to play with the kids, You can do a roll, an split S, but I can't manage to do more aggressive moves. The throttle is kind of high, around 45-50% to hover, I had to get used to that, as it's my first micro.

I really just last weekend got the time to do the FC swap and flash the new ESC FW, so it still "new" so I hope I will be getting better with time.

I got Gemfan bi-blades and tri-blades, up to now I like more the biblades as they have better fly time. The shaft is ok for me, never lost a prop yet.

(26-Oct-2023, 07:06 AM)mstc Wrote: Interesting, you are planning to run 22000kv motors on 2S? I guess you will be using motor limits?
I have that same AIO running some Flywoo 1002-23000 motors, but on 1S. Not 100% sure, but I recall the Flywoo AIO (1S 5A)  that was originally on my build felt quite a bit more powerful, at least before it burned out an ESC. With the JHEMCU board it flies ok, but seems lacking on the top end.

I plan to scale the throttle that's correct.   Yeah that's why I went 2S as think 1S would be a comfortable cruiser.
Interesting about the performance difference amongst the AIOs.  I'm sure they all use different mosfets to save $.  
2S with these motors on a 5A board is pushing it I know

The challenge with this (designed for analog) frame is that the stack height is assumed to be lower than what I'm putting in it.  So there is a bit of tomfoolery going on by me to make it fit with bugger all prop clearance.

(26-Oct-2023, 04:26 PM)PeladoMat Wrote: I hated it until changed the awful betafpv AIO with the NeutronRC and ESCapeFW. Now Its a fun little quad to play with the kids, You can do a roll, an split S, but I can't manage to do more aggressive moves. The throttle is kind of high, around 45-50% to hover, I had to get used to that, as it's my first micro.

I really just last weekend got the time to do the FC swap and flash the new ESC FW, so it still "new" so I hope I will be getting better with time.

I got Gemfan bi-blades and tri-blades, up to now I like more the biblades as they have better fly time. The shaft is ok for me, never lost a prop yet.

See this is what I want to see with the 1S/2S AIOs, 32bit esc performance. Would you mind posting the process you went through to flash the escape firmware? I would be very interested in that!

(26-Oct-2023, 02:45 PM)mstc Wrote: Nice, how does it fly? I only have 750mah packs on mine, maybe they are too heavy but running tri-blades so I would expect there to be more punch. Do you find the shafts a little slippery? My props do slip off after pretty much every crash, I might try scoring the hubs like ph2t suggested.

This is something I got from a ciottifpv livestream. It seems to work well. I take it a step further on the 3" toothpick by heating up a needle and pushing it into the inner wall of the prop hub, creating a rough, raised surface - it really helps hold those larger props on!

(27-Oct-2023, 03:47 AM)ph2t Wrote: See this is what I want to see with the 1S/2S AIOs, 32bit esc performance.  Would you mind posting the process you went through to flash the escape firmware?  I would be very interested in that!

The process wasn't too bad, my choice of AIO made everything more complicated as it powers the ESCs while on USB, but there is not enough current to finish the boot process. Also I am running BF 4.5-zulu and you cannot flash the ESC, you must be con 4.4 or 4.3.
With AM32 ESCs the process is as follows:

Flashing
1) Select the right boot-loader and target for your ESC, from the wiki
2) Use the am32 configuration tool to flash the bootloader. I could not use the esc-configurator.org, and the linux version did not work on my Debian12. My trusty windows 8 VM did the work fine.
3) Install the escape32 utility tools
4) Boot the board with a LIPO, connect it to the PC and load BetaFlight Configurator
5) Go to the CLI and type: 

6) CLOSE BF CONFIGURATOR!! Disconnect is not enough, take note of the BF COM PORT (in my case /dev/ttyAMC0 )
7) Run the update tool:



You should hear the ESC beeping.
8) Unplug the LIPO and USB
9) Repeat steps 4) 5) 6) 7) to update the rest of the ESCs



Configuration
In the wiki It's explained very well, It worked fine on BF 4.5-zulu
Basically you send DSHOT commands and the ESC will beep telling you what configuration is selected. When you finish you save the settings with other dshot command.
For example to select 48 to 96PWM:

Thank you for that process!  Very helpful, the next at32 based esc I get I will do this and compare.

This build was technically flying but I wasn't happy with it in the end.

• As a 2s build the digital vtx was powered from the 5V BEC, this caused considerable current draw and the fc would run quite hot with warnings appearing in the OSD
  
• The 45mm props on 2S worked OK at 60% motor scaling.  
  
• It was loud, like winey high pitched loud that was annoying, lol
  

This was just for flying around the house so I didn't want it to be so loud.

So this one is back to the bench to have its guts ripped out for other projects. 

Even though the project was a technical fail in the end I/we got a new esc firmware flashing process out of it Thank you PeladoMat1