YS-S4 Multi-rotor Autopilot User Manual V1.4
19
7.1.1
Compass
alignment
without
Smartphone.
Step
1
Move
CH5
and
CH6
on
the
transmitter
to
Position1
and
make
sure
Channel
5
&
6
switches
are
in
position
1
(
Manual
Mode).
Level
your
multicopter.
Flip
CH5
switch
three
times
quickly
between
Position
1
and
Position
2(
1
>
2
>
1
>
2
>
1
>
2
>
1)
and
the
LED
turns
green.
You
have
entered
Horizontal
Calibration.
Step
2
Rotate
the
multicopter
counter
clockwise(
or
clockwise)
three
times.
ENSURE
that
the
GREEN
LED
remains
ON
during
this
procedure.
If
it
turns
OFF,
it
means
the
aircraft
is
not
horizontal.
Adjust
the
position
until
the
GREEN
LED
is
back
ON
and
continue
with
the
rotation
and
put
the
multicopter
level
again.
Step
3
Flip
CH5
switch
three
times(1
>
2
>
1
>
2
>
1
>
2
>
1)
and
the
LED
turns
off.
You
have
entered
Vertical
Calibration.
Hold
the
multicopter
nose
down
and
the
LED
turns
green.
Rotate
the
multicopter
3
times
counter
clockwise
as
shown
below,
always
keeping
the
aircraft
nose
down.
Ensure
the
GREEN
LED
remains
ON
during
the
turn.
If
the
LED
turns
OFF,
adjust
the
attitude
of
the
multicopter
until
the
GREEN
LED
is
back
ON
and
continue
with
the
rotation
and
put
the
multicopter
level
again
when
finished
the
rotation.
The
LED
turns
off.
Step
4
Flip
CH5
switch
three
times
(1
>
2
>
1
>
2
>1
>2
>1)quickly
and
the
LED
turns
green.
Wait
until
the
LED
turns
off.
That
indicates
the
compass
calibration
is
done.
7.1.2
Compass
alignment
using
Smartphone
Step
1
Click
the
“Magnetic
Compass”
button
on
the
Phone
GCS
"Data"
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