SERVO parameters

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

SERVO_32_ENABLE

Enable outputs 17 to 31

This allows for up to 32 outputs, enabling parameters for outputs above 16

User level

Advanced

Values

Value	Meaning
0	Disabled
1	Enabled

SERVO_DSHOT_ESC

Servo DShot ESC type

DShot ESC type for all outputs. The ESC type affects the range of DShot commands available and the bit widths used. None means that no dshot commands will be executed. Some ESC types support Extended DShot Telemetry (EDT) which allows telemetry other than RPM data to be returned when using bi-directional dshot. If you enable EDT you must install EDT capable firmware for correct operation.

User level

Advanced

Values

Value	Meaning
0	None
1	BLHeli32/Kiss/AM32
2	BLHeli_S/BlueJay
3	BLHeli32/AM32/Kiss+EDT
4	BLHeli_S/BlueJay+EDT

SERVO_DSHOT_RATE

Servo DShot output rate

DShot output rate for all outputs as a multiple of the loop rate. 0 sets the output rate to be fixed at 1Khz for low loop rates. This value should never be set below 500Hz.

User level

Advanced

Values

Value	Meaning
0	1Khz
1	loop-rate
2	double loop-rate
3	triple loop-rate
4	quadruple loop rate

SERVO_GPIO_MASK

Servo GPIO mask

Bitmask of outputs which will be available as GPIOs. Any output with either the function set to -1 or with the corresponding bit set in this mask will be available for use as a GPIO pin

Reboot required	Yes — the change takes effect after a reboot.
User level	Advanced

Bitmask

Value	Meaning
0	Servo 1
1	Servo 2
2	Servo 3
3	Servo 4
4	Servo 5
5	Servo 6
6	Servo 7
7	Servo 8
8	Servo 9
9	Servo 10
10	Servo 11
11	Servo 12
12	Servo 13
13	Servo 14
14	Servo 15
15	Servo 16
16	Servo 17
17	Servo 18
18	Servo 19
19	Servo 20
20	Servo 21
21	Servo 22
22	Servo 23
23	Servo 24
24	Servo 25
25	Servo 26
26	Servo 27
27	Servo 28
28	Servo 29
29	Servo 30
30	Servo 31
31	Servo 32

SERVO_RATE

Servo default output rate

Default output rate in Hz for all PWM outputs.

Units	Hz
Range	25 to 400
User level	Advanced

SERVO_RC_FS_MSK

Servo RC Failsafe Mask

Bitmask of scaled passthru output channels which will be set to their trim value during rc failsafe instead of holding their last position before failsafe.

User level

Advanced

Bitmask

Value	Meaning
0	RCIN1Scaled
1	RCIN2Scaled
2	RCIN3Scaled
3	RCIN4Scaled
4	RCIN5Scaled
5	RCIN6Scaled
6	RCIN7Scaled
7	RCIN8Scaled
8	RCIN9Scaled
9	RCIN10Scaled
10	RCIN11Scaled
11	SRCIN12Scaled
12	RCIN13Scaled
13	RCIN14Scaled
14	RCIN15Scaled
15	RCIN16Scaled