RC parameters

4 parameters in the RC family. ArduCopter 4.7 only — other vehicles share many of these names but not always the same ranges or meanings.

RC_FS_TIMEOUT

RC Failsafe timeout

RC failsafe will trigger this many seconds after loss of RC

Units	s
Range	0.1 to 10.0
User level	Standard

RC_OPTIONS

RC options

RC input options

User level

Advanced

Bitmask

Value	Meaning
0	Ignore RC Receiver
1	Ignore MAVLink Overrides
2	Ignore Receiver Failsafe bit but allow other RC failsafes if setup
3	FPort Pad
4	Log RC input bytes
5	Arming check throttle for 0 input
6	Skip the arming check for neutral Roll/Pitch/Yaw sticks
7	Allow Switch reverse
8	Use passthrough for CRSF telemetry
9	Suppress CRSF mode/rate message for ELRS systems
10	Enable multiple receiver support
11	Use Link Quality for RSSI with CRSF
12	Annotate CRSF flight mode with * on disarm
13	Use 420kbaud for ELRS protocol

RC_OVERRIDE_TIME

RC override timeout

Timeout after which RC overrides will no longer be used, and RC input will resume, 0 will disable RC overrides, -1 will never timeout, and continue using overrides until they are disabled

Units	s
Range	0.0 to 120.0
User level	Advanced

RC_PROTOCOLS

RC protocols enabled

Bitmask of enabled RC protocols. Allows narrowing the protocol detection to only specific types of RC receivers which can avoid issues with incorrect detection. Set to 1 to enable all protocols.

User level

Advanced

Bitmask

Value	Meaning
0	All
1	PPM
2	IBUS
3	SBUS
4	SBUS_NI
5	DSM
6	SUMD
7	SRXL
8	SRXL2
9	CRSF
10	ST24
11	FPORT
12	FPORT2
13	FastSBUS
14	DroneCAN
15	Ghost
16	MAVRadio
18	SITL UDP