MAVLink
APM
For
APM
(ArduPilot)
the
telemetry
port
also
need
to
be
configured
on
the
FC
side.
Otherwise
you
only
will
get
telemetry
if
you
connect
by
Tower
app
or
similar
first.
Please
use
mission
planner
for
configuration.
Settings
can
be
found
under
“CONFIG/TUNING”-tab
→
“Full
Parameter
Tree”
‘
→
“SR1-SR2”.
SR1
stands
for
telemetry
port
1
and
SR2
for
telemetry
port
2.
Configure
the
telemetry
port
you
are
using
according
to
the
sample
below.
Disable
telemetry
Telemetry
can
be
disabled
under
RX
Settings.
If
the
telemetry
is
turned
off
the
transmitter
will
not
get
any
feedback.
This
will
affect
the
dynamic
power
and
the
status
information
on
the
transmitter
side.
Dynamic
power
will
be
automatically
switched
off
and
remain
on
the
max.
power
setting.
Links
statistics
will
not
be
updated
anymore
and
the
link
status
will
say
“Connecting”
with
an
orange
pulsing
LED.
Note:
None
of
this
will
affect
the
the
link.
It
just
changes
the
link
from
a
bidirectional
one
to
a
unidirectional
one.
Refer
this
paper
for
further
information:
FPV
Racing
Whitepaper
CRSF
Our
CRSF
protocol
provides
bidirectional
end-to-end
communication,
fault
detection
and
very-low
latency.
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