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[Dharmik]

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New gyro only board up
Controlled by an Atmel Mega168PA 8-Bit RISC
 based micro controller and utilizing a single 3-axis
 MEMS gyro the Hobbyking i86 Multi-Rotor Control
 Board is capable of 8 Multi-rotor craft types and 2
flight modes without the need to flash the micro
 controller. The simple dip switch systems allows
 for quick and easy selection of your desired Multi-
rotor configuration and flight mode.
 Light weight and compact the i86 can fit in the
smallest of craft and will require a small piece of
 double sided tape to install.
 The Hobbyking i86 Multi-Rotor Control Board

supports:
Aero (fixed wing)
Dual copter
Tri copter
Quad copter X
Quad copter +
Hex copter
H6 copter
Y6 copter
All of the above modes can be set in "Normal"
 mode or "Sports" mode (default normal)

Specs:
Input Voltage: 4v to 6v
Input signal: 50hz standard PPM
PWM Frequency: 400hz for ESC, 50hz for servos
Gyro scale: +/- 500dps, ODR: 800hz
Operating temp: -40° C to 85° C
Size: 40mm x 40mm
Weight: 8g

Store link
http://www.hobbyking.com/hobbyking/store/__12974__Hobbyking_i86_Multi_Rotor_Control_Board_.html
RCG link
http://www.rcgroups.com/forums/showthread.php?t=1661094

[satyagupta]

I view today morning but was not able to understand the difference between this and HK board.. this has MEMS gyro and HK board has 3 x single axis gyro... It would had been great if it had added accelro on it..

[Dharmik]

All i can say is it's much better than recent hk boards. Few reasons are
1. Less weight
2. Two flying modes together
3. Less space required
4. Digital single 3 axis gyro so no more vertical yaw module.

[anwar]

It would have been near perfect as a heli training platform if it had the accelerometers too ! Guess it is only a matter of time !

Still much better than the old one.  The dual copter support out of the box is cool !

[satyagupta]

All i can say is it's much better than recent hk boards. Few reasons are
1. Less weight
2. Two flying modes together
3. Less space required
4. Digital single 3 axis gyro so no more vertical yaw module.

Planning to try it?? Dharmik bro?

[hyd_quads]

Maybe it's better than the other HK board because of the MEM sensors. I guess MEMS gyros are more resistant to outer physical conditions like heat and provide more accuracy than the piezo sensors of the HK board.

[Dharmik]

satya bro i would like to try it but wait as we know gyro+acc will be out soon.
Here is topic Mems gyros vs. Piezo gyro
http://www.rcgroups.com/forums/showthread.php?t=1660864
Here limited time special offer
KK with gyro+acc
http://www.multircshop.com/site/index.php?route=product/product&path=35&product_id=640

[hyd_quads]

I've read that there was a bug in the firmware of the hobbyking's i86 Multirotor control board.
When the board is disarmed, instead of cutting the throttle pulse, the FC is giving INSTANT FULL THROTTLE to ESCs, for a short duration. This can be dangerous.
However, this is specific ONLY to those ESCs flashed with SimonK's firmware.

courtesy: http://www.rcgroups.com/forums/showthread.php?t=1669859