Hello guest, if you read this it means you are not registered. Click here to register in a few simple steps, you will enjoy all features of our Forum.
This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

Thread Rating:
  • 1 Vote(s) - 4 Average
  • 1
  • 2
  • 3
  • 4
  • 5
RacerCube Modular FC system
#1
Check out this AIO package - RacerCube, it's got everything you need built on 3 boards.
http://www.banggood.com/RacerCube-Integr...95370.html

Board 1
  • Built-in Openlog SD card for BLACKBOX function
  • Integrated FRSKY compatible 8-channel SBUS / PPM receiver (compatible with FRSKY Taranis X9D and DJT / DFT / XJT)
  • Buzzer
  • Serial (UART) pinout interface for things like LED or GPS

Board 2
  • F3 EVO flight control, support CLEANFLIGHT / BETAFLIGHT
  • Built-in MinimOSD
  • 5V BEC
  • Can be powered directly from Lipo and supports VBAT? (need confirm)
Board 3
  • 4 in 1 Littlebee Pro 20A ESC (F396 BLHeli) - support Oneshot125 / Multishot, support Damped Light function, can be directly configured by CLEANFLIGHT
  • PDB
It's a modular design, so you can choose not to use the ESC board and run separate ESC's if you want to.
It uses the Evo F3 firmware target.


[Image: wqjzFsll.jpg]

[Image: RcyxEUil.jpg]

[Image: c96Nre7l.jpg]

[Image: fP66waJl.jpg]

[Image: wp4xCaUl.jpg]
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
Reply
Login to remove this ad | Register Here
#2
I don"t get it. Why is there a PDB when it has 4-in-1 ESCs? What are they thinking?
Reply
#3
very neat solution. I would love to see features like 12V output for VTX and camera, or maybe introduce a VTX module! But perhaps we can just use the Diatone SP3 with this setup would be very nice. But then the SP3 already comes with OSD that would be like duplicated.

(14-Oct-2016, 05:14 PM)varkokonyi Wrote: I don"t get it. Why is there a PDB when it has 4-in-1 ESCs? What are they thinking?

they are referring to the functionality Smile basically you won't need an additional PDB with this FC system.
Reply
#4
Wow, banggood gets some nice products.
Reply
#5
So, if you decide to use the 4 in one esc, you would connect Battery and motor power wires to that and not solder anything to the motor outputs built into the FC board?

If it all works as expected its a heck of a deal.
Reply
#6
(17-Oct-2016, 07:23 PM)TopJimmyCooks Wrote: So, if you decide to use the 4 in one esc, you would connect Battery and motor power wires to that and not solder anything to the motor outputs built into the FC board?

If it all works as expected its a heck of a deal.

yes that's correct ! there is a 5pin connector that carries the ESC signal from FC to the ESC's, no soldering required.

Sascha Michalke in our FB group raised some valid concern over the receiver: the receiver seems to have no PA/LNA.. so range is somewhat limited (100-300m).
Don't be a LOS'er, be an FPV'er :)  My Gear - Facebook - Instagram - Twitter
Reply
#7
I created a series of videos about my experience setting up the Racercube All-In-One package. I wanted to build my first mini-quad and this looked like it was going to be a great setup.  However, there were some things that I had to modify to install this on a 210 sized mini quad in addition to some poor design choices that required workarounds.  I was successful in completing the build and am just working out little issues.

Please visit my YouTube channel for the Racercube:
https://www.youtube.com/playlist?list=PL...TYdWe5PSsy

FITMENT
=======
The stack height of the package is quite high.  The mini quad frame I used was made for a 2 board package with the camera mount quite low.  I've had to reduce the standoffs height between the frame and ESC and ESC and Flight Controller board by 2mm each, giving a vertical reduction of 4mm overall.  Additionally, I had to grind 5mm vertically from the frame.  The total is 9mm more vertical clearance with 1-2mm to spare.  

For ultra compact X frames 210mm and smaller, you will run into FPV camera clearance when running the standard square housing HS1177 type camera.  The SD card impinges on the forward clearance for lowering the FPV camera angle.  On my frame, removing the SD card provides enough clearance to almost match the lowest angle of the Go Pro mount.  I modified the frame further by drilling new camera mount holes diagonally 4mm up and forward.  The compact frame already had the camera lens exposed to possible contact during a crash and this modification put the camera even further into harms way.

LittleBee ESC
=============
Pay no attention to the motor markings on the 4-in-one ESC.  The numbers do not correspond with the motor layout of Cleanflight.  After puzzling about this for a while, I traced the pre-soldered micro plug wires and found that they are correctly soldered to correspond to the correct physical motor layout.

The power lead location on the ESC faces forward on the frame which is not ideal for me since I prefer my battery leads and voltage monitor to be on the rear of the craft.  Rotating the board 180 degrees will place the female micro connector beyond the reach of the pre-soldered PWM wires/male micro plug.  I plan to install the ESC in the standard position and extend the battery cables to the rear of the craft. 

FIRMWARE UPDATES
================
After fitting the unit into the frame, I decided to upgrade to Betaflight and upgrade BL Heli.  Using the Cleanflight/BL Heli passthrough, the new BLHeliSuite identified the 20A Little Bee ESCs and easily allowed me to upgrade to the latest version.  Upgrading the firmware on the FC was a lot more complicated.  If you try to upgrade by using either Cleanflight or Betaflight GUIs, the F3 Evo FC will disconnect.  If you bridge the boot pads on the bottom of the FC, turn on No reboot sequence and Flash on connect, it will also disconnect when plugged in.

While I was unsuccessful upgrading the F3 Evo FC using the GUI, I was able to workaround by using the ST Electronics DFuSe package (http://www.st.com/en/development-tools/s...32080.html)  See this video for a demo: and then download your favorite flavor of *Flight firmware to your computer and upload it using the DFuSe package.

FRSKY CLONE RX
==============
After checking that the built-in FrSky receiver dip switches were in the proper positions to enable the receiver and to be in SBUS mode, binding was very straight forward.  It wasn’t clear how to set failsafe on the “Throttle 3ch” as mentioned in the documentation.

MW-OSD seemed to be up to date, and I was able to easily connect using it’s dedicated USB port.  Be sure to power the FC first as the USB connection doesn’t seem to completely power-up the OSD hardware.  You will see the COM port, but will not be able to connect.  Overall, this is a huge improvement over using a FDTI adapter on a standalone MinimOSD unit.

I fiddled with the RSSI settings in Betaflight and MW-OSD for some time and was not able to get it working.  A true disappointment, but I could live with it.  After I got the quad flying, I kept noticing that Aux 5 in Betaflight always had a changing value. I came across an article by Oscar Laing https://oscarliang.com/rssi-ppm-channel-taranis/ and although I don't have a Taranis plus, I had what looked like a signal value.

You have to turn off the RSSI_ADC in the configuration tab and on the receiver tab, select RSSI Channel 9. You then have to go into MWOSD configuration and turn off Use PWM. Turn on Use FC RSSI and set the RSSI min, RSSI max and RSSI alarm.

I have mine set to:

235 RSSI Min
899 RSSI Max
30 RSSI Alarm

DOCUMENTATION
=============
The documentation, although adequate, left a lot out that you have to glean from the information presented, or investigate further through physical inspection, or search the Internet for common F3 Evo, Cleanflight, and Betaflight issues.  This was a very technical installation that could be easier by improving the documentation.  Sort of the opposite of what you expect from and all-in-one package.

ANNOYANCES
==========
Sometime during the build, I became aware and annoyed of the built-in buzzer.  Eventually, it will start beeping when the transmitter is not on.  This is good and bad.  I now instinctively turn on radio every time I connect the USB to the FC.  And, I power up the whole system since even plugging the USB into the FC alone, it will still produce a faint beeping sound until both the FC and TX are powered up.

MAIDEN FLIGHT
=============
Now that the build is complete, I have begun to fly it and continue to work through any issues.  On my setup, the default Betaflight settings work great.  I’m sure that as I fly it more, I will continue to tweak the settings, but this is the first time any build has worked great without any tuning.  However, all is not great.  The FrSky radio range is unacceptable.  If you like to fly close by, this may not be a problem.  I like to fly in big spaces and usually my range is limited by my 5.8ghz FPV system.  I tried several different high-gain antenna combinations, even going so far as attaching a pigtail on the Racercube RX to fit a 7dbi antenna.  Admittedly, I was using the range test mode on the TX and the small differences in my house would increase proportionally at least 30 times outdoors.  For the big space flying I would do, it will not make a huge difference.  I finally decided on a plain dipole with the antenna cut to as close to 31.23 mm as possible.  It was just a tiny bit better than the stock antenna.

CONCLUSION
==========
I am pointing out a lot of problems in this review but overall, this is a nice package.  All of the major functions are usable and it looks great.  In the end, the FrSky (clone) receiver range is a true disappointment and I would not buy this product again for that reason alone.  You cannot remove the top board and use another receiver since the SBUS input is on that board along with some other good stuff.  But, I am going to enjoy this mini quad and keep it as built.  Eventually, I may strap on a better RX, but that sort of defeats the purpose of the Racercube.  I don’t plan on racing so maybe this is the perfect product for racers who are on a small course.  Just use a 250 or larger frame if you are not good at making modifications.
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Full MSP OSD for DJI FPV System - Now available! V-22 16 5,384 05-Dec-2022, 04:35 PM
Last Post: fpvapnea
  VTX New "DJI Transmission" System (1080p/60fps) SnowLeopardFPV 6 1,187 26-Jul-2022, 05:46 PM
Last Post: BadRaven
  Autonomous flight system beats race pilots SJChannel 4 714 28-Jul-2021, 07:28 PM
Last Post: iFly4rotors
  Goggles Xflip Modular 1024*768 OLED FPV Goggles ph2t 12 3,875 10-Aug-2020, 11:24 PM
Last Post: SnowLeopardFPV
  [News] UK Drone Registration System Postponed SnowLeopardFPV 3 583 02-Oct-2019, 10:17 AM
Last Post: SnowLeopardFPV


Login to remove this ad | Register Here