(23-Jan-2017, 11:35 AM)tozes Wrote: For starters, the Soul F4 is confirmed to support DShot, I'm not sure the Kiwi does as I didn't find any info on that yet. I'm still using blheli (without _s) ESCs so I didn't have the chance to test if it works or not.

Tyvm and nice build btw! Very clean!
Keep us posted!

I thought about soft mounting the stack, that is one way. Of course, the new trend which is soft mount motors is taking off. 1mm tpu mounts thick enough?

(23-Jan-2017, 05:26 PM)Miguel Arr Wrote: I thought about soft mounting the stack, that is one way. Of course, the new trend which is soft mount motors is taking off. 1mm tpu mounts thick enough?

Joshua Bardwell has a video on that where he used 2 layers of double sided tape, 1-1.5mm according to him, and the blackbox traces look pretty good, here's the video:

has anyone successfuly use this Kiwi F4 FC with tbs Crossfire? i am scratching my head since it does not getting any receiver input at all. TX and RX bound successfully. And Using betaflight 3.0.1. Tried with PPM in XF and BF) it doesnt registering any input at all in BF. then tried with SBUS in XF, but couldn't save the config at all in BF, everytime I tried save and reboot, it goes back to PPM. same goes with trying to set the uart1 to serial, the config lost after save&reboot. However if i change other config, ie. airmode, osd all were saved with no problem.

am i missing something or i just got a dud fc?

EDIT: Ah silly me! forgot to turn off MSP before setting the serial_rx. this board is awesome!

(26-Jan-2017, 12:56 PM)asae Wrote: has anyone successfuly use this Kiwi F4 FC with tbs Crossfire? i am scratching my head since it does not getting any receiver input at all. TX and RX bound successfully. And Using betaflight 3.0.1. Tried with PPM in XF and BF) it doesnt registering any input at all in BF. then tried with SBUS in XF, but couldn't save the config at all in BF, everytime I tried save and reboot, it goes back to PPM. same goes with trying to set the uart1 to serial, the config lost after save&reboot. However if i change other config, ie. airmode, osd all were saved with no problem.

am i missing something or i just got a dud fc?

EDIT: Ah silly me! forgot to turn off MSP before setting the serial_rx. this board is awesome!

 had the same face palm moment when setting up mine

A very quick question to any Kiwi F4 owners like me..

...which are the LED pads? It's mentioned as a feature but not shown on their wiring diagram.

Many thanks!

(28-Jan-2017, 02:25 AM)Good Wander Wrote: A very quick question to any Kiwi F4 owners like me..

...which are the LED pads? It's mentioned as a feature but not shown on their wiring diagram.

Many thanks!

in the board's reverse side, on top of VOUT pad, there is a DATA pad to be use for led. As for the +/- I took them from one of the uarts (uart6) because its 5v. Seems that Flying Lemon forgot to update their diagram for their latest board layout....

(30-Jan-2017, 01:12 AM)asae Wrote: in the board's reverse side, on top of VOUT pad, there is a DATA pad to be use for led. As for the +/- I took them from one of the uarts (uart6) because its 5v. Seems that Flying Lemon forgot to update their diagram for their latest board layout....

Doh! Yes, you are both correct on the LED data and their wiring diagram PDF not actually being the Kiwi F4.

Cheer mate!

The only question i have right now is, do we still need to connect the vbat directly to lipo or is the connection will go via the pins between pdb and fc? i got constant beep whenever battery or usb is connected. and had to reduce the voltage scale to 58 to match my battery voltage, otherwise its shows 25v all the time. I suspect this is because i haven't connect the vbat to lipo yet (like any other fc) because that is supposed to be, but not sure because not knowing for sure what flows via the pins between fc and pdb. Afraid to fry the fc because its no longer in stock.

(30-Jan-2017, 04:07 PM)asae Wrote: The only question i have right now is, do we still need to connect the vbat directly to lipo or is the connection will go via the pins between pdb and fc? i got constant beep whenever battery or usb is connected. and had to reduce the voltage scale to 58 to match my battery voltage, otherwise its shows 25v all the time. I suspect this is because i haven't connect the vbat to lipo yet (like any other fc) because that is supposed to be, but not sure because not knowing for sure what flows via the pins between fc and pdb. Afraid to fry the fc because its no longer in stock.

AFAIK, vbat should go through the 8 pin connector, no extra cables required. I also had to scale down the vbat to get correct readings otherwise it was in the 20 something volts.

Btw, a friend contacted FlyingLemon to ask about the availability and they confirmed restock in 2 weeks. That was about 2 weeks ago so it should be available again soon. I'm waiting to order another one for a new build as soon as they appear.

(30-Jan-2017, 06:31 PM)tozes Wrote: AFAIK, vbat should go through the 8 pin connector, no extra cables required. I also had to scale down the vbat to get correct readings otherwise it was in the 20 something volts.

Thats what i thought originally as well, but this constant beeping (long beep never stop) made me scratching my head again - hopefully not getting bald(er) because of this    i will try to do direct connect from lipo + to vbat, and see if it fix the buzzer. hopefully no magic smoke comin' out. or.. worst case, i have to rely on osd for the battery warning..... Did u get your buzzer works fine?

ps. Kiwi F4 is now in Betaflight 3.1

EDIT: Found it! upgrading to Betaflight 3.1 somehow fix my buzzer problem. I was in BF 3.0.1 before.

I reached out to FlyingLemon with some questions and thought I might share here in case it comes handy to someone else:
Restock should happen next week and it will be an improved version of the board. AFAIK there'll be SD card, better PDB quality and mate finish
VBAT scale should be 57 and current around 320
Suggested PID loop is 8khz to match the gyro refresh rate
The kiwi supports DShot

(30-Jan-2017, 04:07 PM)asae Wrote: The only question i have right now is, do we still need to connect the vbat directly to lipo or is the connection will go via the pins between pdb and fc? i got constant beep whenever battery or usb is connected. and had to reduce the voltage scale to 58 to match my battery voltage, otherwise its shows 25v all the time. I suspect this is because i haven't connect the vbat to lipo yet (like any other fc) because that is supposed to be, but not sure because not knowing for sure what flows via the pins between fc and pdb. Afraid to fry the fc because its no longer in stock.

your pin connection could be faulty, I had this issue on new board with signal wire pin for one of my ESCs, I had to wire it directly to my FC.

I updated BF wiki for KIWI.F4 with available information :
https://github.com/betaflight/betaflight/wiki/KIWIF4

- if you have additional useful information you can update the wiki as well.