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HobbyKing Multi-Rotor Control Board V2.1 (Atmega168PA)

HobbyKing Multi-Rotor Control Board V2.1 (Atmega168PA)
HobbyKing Multi-Rotor Control Board V2.1 (Atmega168PA)

Based on and built in conjunction with the original QUADBoard designer Rolf and the popular and already well supported KK Control board, the Hobbyking Multi-Rotor control board is bringing Quadcopter madness to the masses with its breakthroughs in quality and price!

The HobbyKing Multi-Rotor control board uses Japanese Murata piezo gyros that are less sensitive to vibration than SMD type gyros and also features state of the art SMT manufacturing to ensure quality. This board also uses a user programmable Atmega168PA IC.

Size: 50.5mm x 50.5mm x 23.5mm
Weight: 14.5 gram
IC: Atmega168PA
Gyro: Murata Piezo
Input Voltage: 3.3-5.5V
Signal from Receiver: 1520us (4 channels)
Signal to ESC: 1520us

Whats is a Multi-Rotor Control board you ask?

The HobbyKing Multi-Rotor controller is a flight control board for 4 rotor Aircraft (Quadcopters). Its purpose is to stabilise the aircraft during flight. To do this it takes the signal from the three on board gyros (roll, pitch and yaw) then passes the signal to the Atmega168PA IC. The Atmega168PA IC unit then processes these signals according the users installed software 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 stabilises your Quadcopter.

The HobbyKing Multi-Rotor control board also uses signals from your radio systems receiver (Rx) and passes these signals to the Atmega168PA IC via the ail, ele, thr and rud 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: A user manual is available under the files tab.
*Royalties paid on each unit to Rolf, the original KK Board Designer.


Weight: 99g
International Warehouse
Price  HKD100.80

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Further discounts available for registered & logged-in customers.

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 Customer rated
Total of 799 discussions.
Abhijith  16 points - 12/16/2014
I have usbasp programmer, i need information for flashing this board to tricopter mode, is it possible? If its possible which is the suitable firmware?
Thanks in advance
Julian  11 points - 12/9/2014
Not working I think I did not arm it
Nikolai  1 points - 12/4/2014
I follow instructions for ruder gyro reverse, does not help. If i lower the roll pot to 0 and after turn on board, nothing happened. Please help to solve.
 Julian 11 points
Do you have bEc on your esc's if so remove the middle wire of 3 of them on the servo connector, if this still not works ask hobbyking to give you back your money because of a fault board.
Roy  1 points - 11/28/2014
Do these control boards need any coding before you van use it? Or is it "plug and play"?
 RonRC 3794 points
Hi Roy, If you want to fly a quad in the Plus mode (not the X mode) then it will work without doing anything to the board. But if you want an Xcopter (X mode) the board will need to be flashed. Flashing the board even with newer Plus firmware will make it fly much better than the stock firmware. I flashed mine with Xcopter firmware and it flew fantastic.
nbrown0908  1 points - 11/25/2014
Before I buy I'm trying to figure out how to power the board. I see M1-M6 which is where I'll plug the motors in. I see the Ail, Thr, Ele, and Rudder where I'll plug the leads from my rx to the board. But Where does the battery get attached? Each ESC has it's own plug where do those go? Is something else required to make this work?
 RonRC 3794 points
nbrown, most ESCs have an onboard BEC (battery eliminating circuit). The BEC supplies the required 5V for your controller and the RX thru the controller. I would suggest removing the center wire from the other ESCs and taping it back so they do not conflict with each other. If your ESCs have a BEC, use the M-1 ESC to power your board and RX. Hope this helps and happy flying!
Customer Reviews
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Samo Cankar
3 thumbs up!
Better Board than version 1 for almost the same price. I damaged V1 in a crash and then bought this one..

With V2 you can fly Hexacopter. Very easy to use and program with appropriate usb flash tool (from eBay)

If board had smd gyros instead of Piezo (for less drift) it would be a winner.

19 comments. Reply..

Overall Rating
2 thumbs up!
Una pasada venia dentro de una cajita de goma espuma negra de esa prensada, la he usado para poner la tapa debajo de la placa para evitar las vibraciones y luego tapare todo el conjunto con el resto, en poder pongo fotos. La placa esta ok con ese enbalaje no le puede pasar nada un 10 para hobbyking. Los pines del motor M5 y M6 no están soldados, acordaros de soldarlos po si algún día hace falta y os toca desmontar todo. Saludos.

3 comments. Reply..

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Overall Rating
1 thumbs up!
The board works very well. Flashed it with the AVR programmer I obtained off ebay and worked like a charm. Maybe one of the downsides is the bottom of the board where the solder mounds are is slightly dirty. I'm not sure if this is from the flux that was used to solder the board or if its just poor quality control. Either way it is purely cosmetic and does not affect the functions of the board. Also keep in mind that when you are taking the board out of the foam box it arrives in, be sure to pull it straight out - as pulling it out at an angle will cause the vertical yaw gyro to bend. Had this happen to me, but I realized what was happening and bent it right back into place.

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Like it?
good source for multicopter. fly well with kk firmware

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Like it?
This board is a great deal for those starting out in multicopters. I think it's awesome that HK has these at such a low price. Other vendors charge $10 each just for the gyros. I couldn't stop laughing when the other vendors boards went from $80 to $40 once HK started selling these, and theirs are still one and a half times the price!!!. Now if HK would make one with mems gyros and camera compensation at a crazy low price they would dominate the multicopter comunity!!!.

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