Dynon SkyView HDX - DYNON SYSTEM Serial Data Format

Appendix E: Serial Data Output
SkyView HDX System Installation Manual - Revision E 27-3
Position
Width
Name
Description
50
3
OAT (deg C)
+/- then 00 to 99. Outside Air Temperature in Degrees
C. XXX when not available.
53
4
True Airspeed
(knots)
0000 to 9999, true airspeed in units of knots * 10
(1234 = 123.4 knots). XXXX when not available.
57
3
Barometer Setting
(inHg)
000 to 400. Baro setting in inHg * 100, offset by 27.50
inHg. Total range is 27.50 inHg to 31.50 inHg. (242 =
29.92 inHg). XXX when not available.
60
6
Density Altitude (ft.)
+/- then 00000 to 99999, altitude in units of feet,
positive meaning altitude is above sea-level.
XXXXXX when not available.
66
3
Wind Direction (deg)
000 to 359. Wind direction in degrees magnetic. XXX
if unknown.
69
2
Wind Speed (knots)
00 to 99. Wind Speed in Knots. XX if unknown.
71
2
Checksum
The 1 byte sum of all 70 preceding bytes. In ascii-
hexformat, so 3A = 0x3A
73
2
CR/LF
Carriage Return, Linefeed = 0x0D, 0x0A.
As an example, the following is one (1) line of DYNON ADAHRS serial output data:
!1121144703-014+00003310811+01736+003-03+1013-
033+110831245+01650023176C
27.2 DYNON SYSTEM Serial Data Format
The following section details the format of DYNON SYSTEM serial output data:
Table 79: SkyView SYSTEM Serial Data Output Format
Position
Width
Name
Description
1
1
Start Character
‘!’
2
1
Data Type
2 = System Info. Other Dynon Avionics formats look
similar, and may be interleaved, this bit indicates
what kind of data will follow.
3
1
Data Version
Currently 2. This is the version of the data
represented below and will change if there is a future
version that changes data. Data version changed at
SkyView Software v5.1.
4
8
System Time
HHMMSSFF, current Zulu time according to
SkyView’s internal clock which is synchronized with
GPS time if GPS is available. HH is the hour from 00
to 23. MM is the minute from 00 to 59. SS is the
second from 00 to 59. HHMMSS are ‘--------‘ if GPS
time has never been available. FF is the 1/16-second
fraction counter from 00 to 15, and may skip digits if
baud rate is too low to send data at 16Hz.
12
3
Heading Bug (deg)
000 to 359 in degrees. XXX if heading bug is not
displayed.
15
5
Altitude Bug (ft.)
+/- then 0000 to 9999, altitude in units of tens of feet
(1234 = 12,340 ft.). XXXXX if altitude bug is not
displayed.
20
4
Airspeed Bug (knots)
0000 to 9999, airspeed in units of knots * 10 (1234 =
123.4 knots). XXXX if airspeed bug is not displayed.