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Posted by Aaagogo | May 22, 2013 @ 12:12 PM | 1,639 Views
It is discovered that the KK V5.5 Blackboard is a picky board with regards to the firmware, this was concluded from google and my encounter.

There is a total of 3, that i have discovered, till date.

My frame setup is in the X-configuration, therefore all the firmware the X version. on the antistatic bag where the FCB came from, it had Xcopter v2.3 printed on it

the journey has been long... lol from

http://www.rcgroups.com/forums/showthread.php?t=1726124 to


1.) V4.7 by kapteinkuk (tried the file from the repository and the downloaded version found in the forum)

board powers up with the standard beeps, ie on plugging in, it beeps 3 times in ascending order, then 3 short beeps followed by 1 long beep. Board arms, i have controls of yaw and roll pots for throttle calibration and gyro reversing.

However, I am unable to trim the board to get it off the ground,

the motor sequence is different from the standard X-config

Special v4.7 motor sequence
top left motor 1
bottom left motor 2
top right motor 3
bottom right motor 4

i have basic flight controls at idle speed.

2.) V2.5 by minsoo kim (similiar behaviour with the V2.9 by minsoo kim) - from lazyzero's flash tool's repository

ESCs beeps differently, the initial 3 ascending beeps on power up, then a repetitive single beep, over 10 beeps, the escs beeps are all out of sync.

the single repetitive beeps stops when i arm the board. the 3 short beeps followed by 1 long...Continue Reading
Posted by Aaagogo | May 20, 2013 @ 10:17 PM | 1,147 Views

this is the brand of my transmitter and receiver, and all the documentation for the connections were wrong.

I have the mode 2 transmitter;
Aileron and Elevator on the right stick
Throttle and Rudder on the left stick

and i finally have the controls on the transmitter working as they should...

however, during the "tests" to figure out which channel was which, i noticed that the quad had a tendency to flip, namely, motor 2 would run at full power, motor 4 the lowest power and motors 1&3 at 50%...

i have exhausted the lipos from today's testing, i will post a video with fresh batteries tomorrow.

Next up, i need to figure out why the quad wants to flip...

Posted by Aaagogo | May 15, 2013 @ 12:58 PM | 3,030 Views
I found that for the next few stages, get your buddy to help. It would be much easier.

stick a piece of tape and a little piece of paper on the motors, this way, you can positively identify when the respective motors speed up or slow down.

With motors at idle speed -

Elevator Channel Check
Pitch Down - Rear Motors should speed up
Pitch Up - Front Motors should speed up

Question? with pitch down, should both rear motors speed up? is it ok if only 1 of the rear motos speed up?

Aileron Channel Check
Roll Left - Right Motors should speed up
Roll Right - Left Motors should speed up

Rudder Channel Check
Yaw Left - FR & RL Motors should speed up
Yaw Right - FL & RR Motors should speed up
Posted by Aaagogo | May 15, 2013 @ 12:43 PM | 2,903 Views
The 1st thing I have to note is to find out how to tune the gain on your throttle setting, the first few times i spun up the motors, i was thrown off by the sensitivity of the throttle stick, which was my very first prop snap... the 1st time i powered up my quad before it is ready, lol.

ESC's and motors have calibrated for throttle range settings independently with each ESC connected to the throttle channel on the receiver.

Following the X-Configuration, Propellers rotation setup

Clockwise Rotation = Motors 1 & 3 = Front Left (FL) & Rear Right (RR)

Counter Clockwise Rotation = Motors 2 & 4 = Front Right (FR) & Rear Left (RL)

Using the YaW pot, follow the throttle range calibration steps.
Posted by Aaagogo | May 15, 2013 @ 12:17 PM | 2,788 Views
This had been an ongoing project for a while and i'm also trying to document the troubleshooting stage of the build, which seems to the be the daunting part of the build. I'm sure everyone remembers their first time on the throttle and your first few prop snaps

FCB: KK Multicopter V5.5 "Blackboard"

flashed with

kapteinkuk's QuadControl V4.7 (X mode) firmware

generic Chinese made ESC and motors, props 10 x 4.5

SK 450 Quadcopter frame

Transmitter: Spring RC TG6661A 6-CH

User Manual

/*up to this point, i've already snapped a few props, lol... I've placed another order for 2 more sets, without props, i will now work on getting the electronics in the proper working order.*/