User guide

Racelogic Ltd Laptiming Mode
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Split to Split Time
There are two different ways of measuring split times. The default is from the start of the lap to the
split, the other method is from one split to another. To change between these options, tick or un-
tick the option „SPLIT TO SPLIT TIME‟ in the DISPLAY OPTIONS menu.
DISPLAY OPTIONS
SPLIT DISPLAY TIME
SPLIT TO SPLIT TIME
BIG SPEED @ SPLIT
ROLLING LAP TIME
EXIT
Split Widths
When setting a start / finish or split line, DriftBox will set the width of the line at a default value of
25m (12.5m either side of the point at which the OK button was pressed.) However this can be
changed by selecting the Split Widths function and altering the value using the ▲▼ buttons. This
feature is useful if DriftBox is being used on a track where separate sections pass closely by each
other, and eliminates the possibility of going through a split line in the wrong direction.
Clearing your Best Lap time
Press and hold the RESET button for 1.5s.
Laptime Telemetry
COMMS MENU
INPUT MODULE
 LAPTIME TELEMETRY
LAPTIME PULSE
DRIFT TELEMETRY
YAW DIAGNOSTICS
EXIT
The Laptime Telemetry option makes DriftBox send lap time data via the telemetry serial port
whenever a start/finish, split line or dedicated finish line is crossed. The lap time serial stream has
the following format, sent at a baud rate of 115200 bit/sec, no parity, 8 data bits and 1 stop bit.
Word No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
24
24
00
10
00
10
33
34
34
08
12
76
90
14
E1
B4
22
17
85
9D
24
24
00
10
00
0A
33
34
34
06
99
32
C0
3E
D9
B8
08
BD
49
8E
24
24
00
10
00
0B
33
34
34
06
08
B2
90
3E
EF
FC
07
51
B6
E7
24
24
00
10
00
0C
33
34
34
06
0B
23
90
3F
0C
80
08
C6
6B
17
24
24
00
10
00
0D
33
34
34
05
07
7A
10
3F
1F
A4
09
EB
1B
7F
24
24
00
10
00
0E
33
34
34
06
0F
B7
70
3F
47
E0
06
B1
FE
57
24
24
00
10
00
0F
33
34
34
07
09
75
E0
3F
60
18
08
A4
45
85
ASCII
Header
Message
Length
Message
Type
Unit Serial No.
Sat
Laptime (Secs)
UTC (Secs)
Speed
Checksum