YS-S4 Multi-rotor Autopilot User Manual V1.4
24
You
will
need
a
TX
with
at
least
7
channels
to
use
the
Gimbal
function.
Use
channel
7
on
your
transmitter
for
gimbal
control
and
assign
it
to
a
knob
switch,
Channel
7
will
now
adjust
your
gimbal
pitch
location
and
will
continue
to
stabilize
the
camera
at
all
angles
of
pitch.
The
spare
channels
may
be
used
for
other
applications.
Normally
roll
servos
will
maintain
gimbal
stabilization
in
the
middle
position.
If
your
gimbal
tilts
to
one
side
it
can
be
adjusted
it
by
clicking
“Enter
Setup”
in
the
Setting
section
(CH5
must
in
manual
and
the
throttle
set
to
minimum)
Now
the
CH7
knob
can
be
used
for
controlling
gimbal
roll.
The
gimbal
roll’s
balance
position
may
be
fixed
and
saved
by
clicking
“Quit
Setup”.
Now
CH7
will
revert
to
controlling
gimbal
pitch.
9.
Firmware
Upgrade
IMPORTANT:
For
safety,
please
remove
all
the
propellers
before
upgrading
firmware.
You
may
download
the
latest
firmware
and
assistant
tool
from
the
ZeroUAV
website
before
upgrading
the
firmware.
(1)
Connect
the
YS
‐
S4
to
the
computer
with
a
Mini
USB
cable.
Power
the
S4
and
put
bring
the
throttle
stick
to
the
bottom.
(2)
Open
the
S4
Setup
Software
“
S4
‐
GCS
‐
USB.exe”,
Click
“Open
USB”
button
in
the
“YS
‐
S4
firmware
upgrade”
window.
