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Furious FPV Kombini – Review

Recently, a multitude of all in one flight controllers have been introduced, and for some time now, they have been the boards of choice to make builds easier, and create a quad with more space, and create a lighter build. The furious FPV kombini is one of the top flight controllers on the market today that has an integrated power distribution board, but what is it like and is it match for the DTFc and Moto Moto Tempest?

First Impressions

The Flight controller comes in a silver electrostatic bag, and is neatly sandwiched between two pieces of foam to protect it, and then that is all wrapped in bubblewrap, so it is well protected in transit. It also comes with an infrared LED for the integrated race transponder, and a cable for the connection of an osd/vtx board like the passado, which would create a very neat stack inside your quad. The board however does not come with anything to mount itself with, and so if you would have to buy your own nylon standoffs to mount it in the quad, which is a bit disappointing. The board however does come with a 12 volts and 5 volt integrated BEC, and an LC filter for clean power, and has an sbus inverter built in, and a port for a spektrum satellite reciever. The PDB can also support up to 5 cell lipo power, and 150 amps meaning there is no chance of damaging it with 4 cell lipo power.

Flashing

At drone insider, we flashed the board using a MacBook, so flashing was extremely easy.

  1. Firstly, go online to github and download the hex file for the Furious FPV Kombini
  2. Next, go onto betaflight and load the firmware locally into the flashing tab.
  3. To prepare the board, hold down the boot button, and then plug in the USB into the USB port on the side of the board, this will put the board into DFU mode.
  4. Then flash the board, wait for it to say flashing successful, then unplug the board, plug it back in, and your ready to set up in betaflight

If using a windows computer, you will have to download Virtual ComPort and Zadig drivers from, but as this is a more complex flight controller, it probably will not be your first flight controller, and so you will know these things already.

The Build

Due to the integrated design, this was a very hard build. Not only do you need to solder the esc wires to the board, you also need to solder the signal wire, and signal ground wire inbetween the two power cables as well, and if you have thick esc wires, it makes the job even tougher, as you have to be extremely careful not to bridge the positive esc cable and the signal cable. However, they have placed the esc signal ground and ground cables together, so bridging those to wires does not matter. This is definitely not for a first build, unless you have someone with you who knows what they are doing, as it was very easy to bridge pads during the build, and it was a struggle to un-bridge them as well. The pads for the video transmitter are also very small and tricky to solder, however as the wires here are very small, this was not an issue. However, this does make an extremely clean build, and attaching a receiver was very easy.

Design

As flight controllers with integrated power distribution boards have been around for quite some time now, their designs have become better and better. The build with the kombini is very neat, as the esc wires all directly solder onto the board, meaning you can keep the wires nice and short. However, as they have fitted so many things into this board, the bottom is not flat at all. There are lots of larger components on the bottom, so when we were mounting it onto our QAV-R, we had to use spacers to stop it from hitting the x brace in the middle of the baseplate.

When you get round to attaching the receiver wires to the board, we would highly recommend direct soldering them to the to the board, and not using pin header, it is only 4 points if you are using sbus and the smart port, and it saves a lot of space and keeps the build neat.

In order to get 5 volts to the video transmitter and not 12 volts, you have to debridge the solderpads behind the pads for the video transmitter, and rebridge it to the otherside. Make sure though that all three pads are not connected, or you might see the magic smoke!

The flight controller is also very heat resistant. Soldering this board on 400 degrees Celsius did not damage the board in any way, so you still need to be an efficient solderer, but you don’t need to rush.

Specs

  • Integrated F3 based FC and PDB in one board
  • Integrated current sensor with a 150amp pdb
  • MPU 6000 sp1 chip which has very little interference
  • It has 3 uart ports not shared with the usb port, and is cleanflight and betaflight ready with blheli passthrough
  • Full compatibility with frsky, smarport, graupner hott and more
  • 5s lipo, 18.5 volt compatibility
  • Heavy Duty 2A BEC at 5V and 0.8A BEC at12V Output
  • Oneshot and Multishot compatibility with BL-HELI passthrough
  • It has pads for an Infrared LED for a built in transponder, and it comes with the LED required

Flying

The flying was great. There was no lack of power from the integrated power distribution board, and the F3 board was as good as any other F3 board that we have flown here. The board flew very well on stock PID’s however, a slight bit of tuning the P gain in the board meant it flew extremely smoothly. However due to the lack of a black box, you cannot get as good a tune as you can on the new Rotorgeeks SSD F3 which has an SD card port as easily. But it was great to fly.

Conclusion

At nearly 49 dollars for the flight controller, and then another nearly 60 dollars for the passado video transmitter/OSD, this is no cheap board. You could buy a cheap f4 board off banggood for 18 pounds that will perform well, and then a matek PDB if your frame didn’t already have one for around 5 pounds, so why would you buy a kombini. The answer is, it saves so much space, as it is one board instead of two, and in a true x 5 inch racer, space is at a premium. You also pay for a very functional board. The f3 chip in the board is very good, and this board will easily run a 8khz 4khz set up with very little problem. It can support an 8khz 8khz accelerometer and PID loop, however that is quite strenuous on an f3 chip. The board also has full smartport telemetry which is perfect for us at drone insider as well. The compatibility with the passado also creates a very clean setup, however this does make it very pricy. The question is, would we recommend this product. The answer is yes. At drone insider, we feel that flight controllers with integrated power distribution boards is where the hobby needed to go, and so yes, we would recommend this as a good, easy to set up flight controller with integrated power distribution board, despite the difficult soldering. However, after the first flight with this board, the usb port fell of when it we plugged it into the computer. However, even though the board had been soldered, due to the nature of the problem, we were able to get a free replacement, so the customer service is also extremely good.

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