say they don't work. They must
because I have seen videos of them in
flying craft; it's just that it’s a real bear
to set up. Due to the Multi Wii's
complexity, I won't be featuring it in
this series. Be sure to visit my website
mentioned at the end of this article,
as I will eventually get the Multi Wii up
and running once I get some time to
dedicate to it.
KK2 Flight Controller
The KK2 flight controller shown in
Figure 12 is a unique controller in
that it is configured and tuned via the
onboard LCD. While the LCD and
buttons make it easy to change
settings, the KK2 board does take a
bit of care to get tuned to your craft.
Mounting the KK2 can be a little
problematic as the vibrations created
by your props can play havoc with the
sensors. I found the best way to
mount the board is by attaching small
pieces of flex tubing to the four holes
on the board, then slipping the tubing
over standoffs mounted on the craft.
At $30, these controllers are hard to
• KK2 flight controller: HK#
and attach it to your craft.
The NAZA comes with a VU, or
Versatile Unit. This module connects
to your craft’s battery and provides
power to the NAZA main controller. It
is also equipped with a very bright
LED that provides status information.
The VU will monitor your main battery
and if the voltage drops too low, will
land your craft.
Note that this can only be
ordered from the Hobby King
NAZA Flight Controller
The NAZA claims to be a game
changer when it comes to flight
controllers. They aren't too far off.
The controller shown in Figure 13 is
about as plug-and-play as it gets. It
has two modes of operation: manual
mode and attitude mode. Manual
mode works much like the KK2 board,
but requires little or no tuning. It’s the
attitude mode that is the game
changer. In this mode, the craft will
pretty much hover in place without
any input from the transmitter. This
means that anyone can fly a multi-rotor controlled by a NAZA.
Installing the NAZA is easy, as
well. Since it has vibration dampening
built in, all you need to do is apply
some double-stick tape to the module
SERVO 12.2012 49