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Hobbyking KK2.1.5 Multi-rotor LCD Flight Control Board With 6050MPU And Atmel 644PA

Hobbyking KK2.1.5 Multi-rotor LC...

The next evolution of the rotor revolution is here!! The KK2.1.5 is packing new found power with updated sensors, memory and header pins.

The KK2.1.5 is next big evolution of the first generation KK flight control boards. The KK2.1....

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The next evolution of the rotor revolution is here!! The KK2.1.5 is packing new found power with updated sensors, memory and header pins.

The KK2.1.5 is next big evolution of the first generation KK flight control boards. The KK2.1.5 was engineered from the ground up to bring multi-rotor flight to everyone, not just the experts. The LCD screen and built in software makes install and setup easier than ever. A host of multi-rotor craft types are pre-installed, simply select your craft type, check motor layout/propeller direction, calibrate your ESCs and radio and you’re ready to go! All of which is done with easy to follow on screen prompts!

The original KK gyro system has been updated to an incredibly sensitive 6050 MPU system making this the most stable KK board ever and allowing for the addition of an auto-level function. At the heart of the KK2.1.5 is an Atmel Mega644PA 8-bit AVR RISC-based microcontroller with 64k of memory. An additional polarity protected header has been added for voltage detection, so no need for on-board soldering. A handy piezo buzzer is also included for audio warning when activating and deactivating the board.

The KK2.1.5 added polarity protection to the voltage sense header and a fuse protected buzzer outputs, in case something is accidentally plugged in incorrectly. The voltage sense line has been updated for better accuracy. The board is clearly labeled and the voltage sense line color has been changed to red for easy identification, making installation and connections a snap.

If you’re new to multi-rotor flight or have been unsure about how to setup a KK board then the KK2.1.5 was built for you. The 6 Pin USBasp AVR programming interface ensures future software updates will be quick and easy.

Size: 50.5mm x 50.5mm x 12mm
Weight: 21 gram (Inc Piezo buzzer)
IC: Atmega644 PA
Gyro/Acc: 6050MPU InvenSense Inc.
Auto-level: Yes
Input Voltage: 4.8-6.0V
AVR interface: standard 6 pin.
Signal from Receiver: 1520us (5 channels)
Signal to ESC: 1520us

Firmware Version: 1.6:
Pre-installed firmware.
Quadcopter +
Quadcopter X
Hexcopter +
Hexcopter X
Octocopter +
Octocopter X
X8 +
X8 X
Singlecopter 2M 2S
Singlecopter 1M 4S

(Custom Mix via the "Mixer Editor" option)

The Mixer Editor allows you to adjust where and how much signal the motors receive from stick input and sensors. This allows you to create any configuration possible with up to 8 motors or servos.

What is a Multi-Rotor Control board you ask?

The HobbyKing KK2.1.5 Multi-Rotor controller is a flight control board for multi-rotor aircraft (Tricopters, Quadcopters, Hexcopters etc). Its purpose is to stabilize the aircraft during flight. To do this it takes the signal from the 6050MPU gyro/acc (roll, pitch and yaw) then passes the signal to the Atmega644PA IC. The Atmega644PA IC unit then processes these signals according the users selected firmware and passes control signals to the installed Electronic Speed Controllers (ESCs). These signals instruct the ESCs to make fine adjustments to the motors rotational speed which in turn stabilizes your multi-rotor craft.

The HobbyKing KK2.1.5 Multi-Rotor control board also uses signals from your radio systems receiver (Rx) and passes these signals to the Atmega644PA IC via the aileron, elevator, throttle and rudder inputs. Once this information has been processed the IC will send varying signals to the ESCs which in turn adjust the rotational speed of each motor to induce controlled flight (up, down, backwards, forwards, left, right, yaw). 

** Note: It is all ways recommended to update to the latest software version as part of your initial setup.(this is different than v1.6 for 2.0) 


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the screen was not mounted properly but that did not take anything away form the flight controller
I purchased the board and the recommended flash tool from HK. The board would not read the battery volotage nor could I reflash new firmware.
I'm new to building quads and this board was so easy to set up right out of the box. A bonus that you don't need to hook up to a computer! You can setup in the field which is a bonus. Great bargain as well!
This is a very good product; the self-levelling capability makes it much easier to fly than previous generation boards. However, there is one important point to watch!
My board reads the battery voltage 0.3V too high. That means that it reports the voltage with a fully charged 2S pack as 8.7V (12.9V on 3S).
I did not realize this immediately and had the model fall out of the sky due to the ESC low voltage trips going into action before the low battery alarm sounded.
Once I set the low voltage alarm 0.3V higher, all was well.
So do check the board’s reported voltage before take-off, if it says 8.7V on 2S or 12.9V on 3S those are impossible voltages for LiPos and you may have the faulty voltage reporting issue.
ok buena para comenzar
don't trust the photo (it's always what they say):
There are no black glue to seal the lcd. DIY for ever!
Good product anyway, well documented.
Thorax KK2 tngy 9 x
these just work. very easy to set up
I cant fault this board its great for every multi rotor build. I've used it on a lot of quadcopter and it has had no problems with anyone of them.
Great flight controller. Very easy to setup and get to flying. No computer needed which is great. I installed on a FPV 250 ghost and am very happy.
These mini KK boards are the greatest thing. With there on screen display using a computer to adjust your flight controller is now a thing of the past.
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