YS-S4 Multi-rotor Autopilot User Manual V1.4
8
g.
Only
the
USB
interface
can
be
used
for
Parameter
Setting
and
Firmware
Upgrade.
The
COM
port
is
also
an
interface
to
connect
to
a
WI
‐
FI
module.
h.
The
YS
‐
S4
DOES
NOT
support
ESC
calibration
The
ESCs
should
be
calibrated
independently
referring
to
the
manufacturer
supplied
ESC
manual.
It
is
a
good
idea
to
disable
the
ESC
low
‐
voltage
cut
out.
With
most
ESCs
all
you
need
do
is
configure
them
to
NiMH.
5.2
How
to
Connect
the
Modules
1)
Connect
the
power
supply
module
As
shown
below,
one
3
‐
core
cable
is
used
to
connect
the
S4
to
the
power
unit,
the
WHITE
‐
core
is
up,
the
RED
‐
core
is
in
the
middle
and
the
BLACK
‐
core
is
below.
The
RED
and
BLACK
bare
wires
should
to
be
soldered
to
the
Positive
and
Negative
pole
of
the
battery
pack
connector
(3S
‐
6S
Lipo).
2)
Connect
the
LED
module
The
LED
module
should
be
connected
to
the
LED
interface
of
the
S4
main
controller
as
shown.
3)
Connect
the
GPS
module
The
GPS
module
has
red
and
black
ends;
the
RED
end
is
connected
to
the
S4
GPS
‐
R
interface,
and
the
black
end
to
the
GPS
‐
B
interface.
The
side
of
the
slot
faces
up.
4)
Connect
the
receiver
