9. Q: How to control gimbal by SBUS out of flight control?

Case 1: Pixhawk, Pixkack/ V3 FC connect to RSSI, V5 series FC connect to SBUS_out pin

Answer: BRD_SBUS_OUT set to 1 (50hz)

SERVO_SBUS_OUT default as 50

BRD_SAFETYENABLE change default 1 to 0 , or turn on safety button.

Case 2: X7 series FC do not have independent SBUS_OUT interface, output SBUS signal by serial port directly

Answer: SERIAL4_PROTOCOL set to 15

SERIAL4_OPTIONS set to 2

After the above settings, TX pin of FC uart4 interface will output SBUS signal. Similarly, other serial port can also be set as SBUS output.

Control method:

Servo8 set as 56, the channel 6 of the RC controls the channel 8 output by FC, which is to control the channel 8 output by SBUS.

Appendix:

SONY 30x Optical Zoom Ratio&Pos
index	POS hex 0xpqrs	ZOOM Ratio	H FOV	V FOV
0	0	1.00	63.7	38.5
1	40	1.01	63.1	38.1
2	80	1.01	63.1	38.1
3	C0	1.02	62.6	37.8
4	100	1.03	62.1	37.4
5	140	1.03	62.1	37.4
6	180	1.04	61.7	37.1
7	1C0	1.05	61.2	36.8
8	200	1.05	61.2	36.8
9	240	1.06	60.7	36.5
10	280	1.07	60.2	36.1
11	2C0	1.07	60.2	36.1
12	300	1.08	59.8	35.8
13	340	1.09	59.3	35.5
14	380	1.10	58.9	35.2
15	3C0	1.10	58.9	35.2
16	400	1.11	58.4	34.9
17	440	1.12	58.0	34.6
18	480	1.13	57.6	34.3
19	4C0	1.13	57.6	34.3
20	500	1.14	57.1	34.1
21	540	1.15	56.7	33.8
22	580	1.16	56.3	33.5
23	5C0	1.16	56.3	33.5
24	600	1.17	55.9	33.2
25	640	1.18	55.5	33.0
26	680	1.19	55.1	32.7
27	6C0	1.20	54.7	32.4
28	700	1.21	54.3	32.2
29	740	1.21	54.3	32.2
30	780	1.22	53.9	31.9
31	7C0	1.23	53.6	31.7
32	800	1.24	53.2	31.4
33	840	1.25	52.8	31.2
34	880	1.26	52.5	31.0
35	8C0	1.27	52.1	30.7
36	900	1.28	51.7	30.5
37	940	1.29	51.4	30.3
38	980	1.30	51.1	30.1
39	9C0	1.31	50.7	29.8
40	A00	1.32	50.4	29.6
41	A40	1.33	50.0	29.4
42	A80	1.34	49.7	29.2
43	AC0	1.35	49.4	29.0
44	B00	1.36	49.1	28.8
45	B40	1.37	48.8	28.6
46	B80	1.38	48.4	28.4
47	BC0	1.39	48.1	28.2
48	C00	1.40	47.8	28.0
49	C40	1.41	47.5	27.8
50	C80	1.42	47.2	27.6
51	CC0	1.43	46.9	27.4
52	D00	1.44	46.6	27.3
53	D40	1.45	46.4	27.1
54	D80	1.46	46.1	26.9
55	DC0	1.48	45.5	26.5
56	E00	1.49	45.2	26.4
57	E40	1.50	45.0	26.2
58	E80	1.51	44.7	26.0
59	EC0	1.52	44.4	25.9
60	F00	1.54	43.9	25.5
61	F40	1.55	43.7	25.4
62	F80	1.56	43.4	25.2
63	FC0	1.57	43.1	25.1
64	1000	1.59	42.7	24.8
65	1040	1.60	42.4	24.6
66	1080	1.61	42.2	24.5
67	10C0	1.63	41.7	24.2
68	1100	1.64	41.5	24.0
69	1140	1.65	41.2	23.9
70	1180	1.67	40.8	23.6
71	11C0	1.68	40.6	23.5
72	1200	1.70	40.1	23.2
73	1240	1.71	39.9	23.1
74	1280	1.72	39.7	22.9
75	12C0	1.74	39.3	22.7
76	1300	1.75	39.1	22.6
77	1340	1.77	38.7	22.3
78	1380	1.79	38.3	22.1
79	13C0	1.80	38.1	21.9
80	1400	1.82	37.7	21.7
81	1440	1.83	37.5	21.6
82	1480	1.85	37.1	21.4
83	14C0	1.87	36.7	21.1
84	1500	1.88	36.5	21.0
85	1540	1.90	36.2	20.8
86	1580	1.92	35.8	20.6
87	15C0	1.94	35.5	20.4
88	1600	1.95	35.3	20.3
89	1640	1.97	35.0	20.1
90	1680	1.99	34.6	19.9
91	16C0	2.01	34.3	19.7
92	1700	2.03	34.0	19.5
93	1740	2.05	33.7	19.3
94	1780	2.07	33.4	19.1
95	17C0	2.09	33.1	19.0
96	1800	2.11	32.8	18.8
97	1840	2.13	32.5	18.6
98	1880	2.15	32.2	18.4
99	18C0	2.17	31.9	18.3
100	1900	2.19	31.6	18.1
101	1940	2.21	31.4	17.9
102	1980	2.23	31.1	17.8
103	19C0	2.26	30.7	17.5
104	1A00	2.28	30.5	17.4
105	1A40	2.30	30.2	17.2
106	1A80	2.32	29.9	17.1
107	1AC0	2.35	29.6	16.9
108	1B00	2.37	29.3	16.7
109	1B40	2.40	29.0	16.5
110	1B80	2.42	28.8	16.4
111	1BC0	2.45	28.4	16.2
112	1C00	2.47	28.2	16.1
113	1C40	2.50	27.9	15.9
114	1C80	2.53	27.6	15.7
115	1CC0	2.55	27.3	15.6
116	1D00	2.58	27.0	15.4
117	1D40	2.61	26.7	15.2
118	1D80	2.64	26.4	15.0
119	1DC0	2.66	26.3	14.9
120	1E00	2.69	26.0	14.8
121	1E40	2.72	25.7	14.6
122	1E80	2.75	25.4	14.4
123	1EC0	2.78	25.2	14.3
124	1F00	2.82	24.8	14.1
125	1F40	2.85	24.6	13.9
126	1F80	2.88	24.3	13.8
127	1FC0	2.91	24.1	13.7
128	2000	2.95	23.7	13.5
129	2040	2.98	23.5	13.3
130	2080	3.02	23.2	13.2
131	20C0	3.05	23.0	13.0
132	2100	3.09	22.7	12.9
133	2140	3.12	22.5	12.7
134	2180	3.16	22.2	12.6
135	21C0	3.20	21.9	12.4
136	2200	3.24	21.7	12.3
137	2240	3.28	21.4	12.1
138	2280	3.32	21.2	12.0
139	22C0	3.36	20.9	11.8
140	2300	3.40	20.7	11.7
141	2340	3.44	20.4	11.6
142	2380	3.49	20.1	11.4
143	23C0	3.53	19.9	11.3
144	2400	3.57	19.7	11.1
145	2440	3.62	19.4	11.0
146	2480	3.67	19.2	10.8
147	24C0	3.71	19.0	10.7
148	2500	3.76	18.7	10.6
149	2540	3.81	18.5	10.4
150	2580	3.86	18.2	10.3
151	25C0	3.91	18.0	10.2
152	2600	3.97	17.7	10.0
153	2640	4.02	17.5	9.9
154	2680	4.07	17.3	9.8
155	26C0	4.13	17.1	9.6
156	2700	4.19	16.8	9.5
157	2740	4.24	16.6	9.4
158	2780	4.30	16.4	9.3
159	27C0	4.36	16.2	9.1
160	2800	4.43	15.9	9.0
161	2840	4.49	15.7	8.9
162	2880	4.55	15.5	8.7
163	28C0	4.62	15.3	8.6
164	2900	4.68	15.1	8.5
165	2940	4.75	14.9	8.4
166	2980	4.82	14.6	8.3
167	29C0	4.89	14.4	8.1
168	2A00	4.97	14.2	8.0
169	2A40	5.04	14.0	7.9
170	2A80	5.12	13.8	7.8
171	2AC0	5.19	13.6	7.7
172	2B00	5.27	13.4	7.5
173	2B40	5.35	13.2	7.4
174	2B80	5.44	13.0	7.3
175	2BC0	5.52	12.8	7.2
176	2C00	5.61	12.6	7.1
177	2C40	5.69	12.4	7.0
178	2C80	5.78	12.2	6.9
179	2CC0	5.88	12.0	6.8
180	2D00	5.97	11.8	6.7
181	2D40	6.07	11.6	6.5
182	2D80	6.17	11.4	6.4
183	2DC0	6.27	11.3	6.3
184	2E00	6.37	11.1	6.2
185	2E40	6.47	10.9	6.1
186	2E80	6.58	10.7	6.0
187	2EC0	6.69	10.6	5.9
188	2F00	6.80	10.4	5.8
189	2F40	6.92	10.2	5.7
190	2F80	7.03	10.0	5.7
191	2FC0	7.15	9.9	5.6
192	3000	7.28	9.7	5.5
193	3040	7.40	9.5	5.4
194	3080	7.53	9.4	5.3
195	30C0	7.66	9.2	5.2
196	3100	7.79	9.1	5.1
197	3140	7.93	8.9	5.0
198	3180	8.07	8.7	4.9
199	31C0	8.21	8.6	4.8
200	3200	8.35	8.4	4.8
201	3240	8.50	8.3	4.7
202	3280	8.65	8.2	4.6
203	32C0	8.81	8.0	4.5
204	3300	8.97	7.9	4.4
205	3340	9.13	7.7	4.3
206	3380	9.29	7.6	4.3
207	33C0	9.46	7.5	4.2
208	3400	9.63	7.3	4.1
209	3440	9.80	7.2	4.0
210	3480	9.98	7.1	4.0
211	34C0	10.16	6.9	3.9
212	3500	10.35	6.8	3.8
213	3540	10.54	6.7	3.8
214	3580	10.73	6.6	3.7
215	35C0	10.93	6.4	3.6
216	3600	11.13	6.3	3.6
217	3640	11.33	6.2	3.5
218	3680	11.54	6.1	3.4
219	36C0	11.75	6.0	3.4
220	3700	11.97	5.9	3.3
221	3740	12.19	5.8	3.2
222	3780	12.41	5.7	3.2
223	37C0	12.64	5.6	3.1
224	3800	12.88	5.5	3.1
225	3840	13.12	5.4	3.0
226	3880	13.36	5.3	3.0
227	38C0	13.61	5.2	2.9
228	3900	13.87	5.1	2.8
229	3940	14.13	5.0	2.8
230	3980	14.40	4.9	2.7
231	39C0	14.67	4.8	2.7
232	3A00	14.95	4.7	2.6
233	3A40	15.24	4.6	2.6
234	3A80	15.54	4.5	2.5
235	3AC0	15.85	4.4	2.5
236	3B00	16.17	4.3	2.4
237	3B40	16.50	4.2	2.4
238	3B80	16.84	4.2	2.3
239	3BC0	17.20	4.1	2.3
240	3C00	17.57	4.0	2.2
241	3C40	17.96	3.9	2.2
242	3C80	18.36	3.8	2.1
243	3CC0	18.79	3.7	2.1
244	3D00	19.25	3.6	2.0
245	3D40	19.73	3.5	2.0
246	3D80	20.25	3.4	1.9
247	3DC0	20.81	3.3	1.9
248	3E00	21.41	3.3	1.8
249	3E40	22.07	3.2	1.8
250	3E80	22.80	3.1	1.7
251	3EC0	23.60	2.9	1.7
252	3F00	24.51	2.8	1.6
253	3F40	25.55	2.7	1.5
254	3F80	26.76	2.6	1.5
255	3FC0	28.21	2.5	1.4
256	4000	30.00	2.3	1.3