User guide

Racelogic Ltd Laptiming Mode
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Field
Value
Output
Conversion
ASCII Header:
0x2424
$$
ASCII
Message Length:
0x0010
16 (No of 16 bits Words)
Hex2Dec
Message Type:
0x0010
Laptime
Hex
0x000A
Split 1
0x000B...
Split 2
...0x000F
Split 6
Last 3 Digits of Unit Serial No:
0x333434
344
ASCII
No. of Sats in View:
0x07
7
Hex2Dec
Laptime (Secs) * 100000:
0x0975E0
62000/100000 = 6.2
Hex2Dec
UTC Time (Secs) * 100:
0x3F6018
4153368/100 = 41533.68
Hex2Dec
Speed at this point * 100:
0x08A4
2212/100 = 22.12 mph or kmh*
Hex2Dec
Checksum:
0x4585
0x4585
Hex
*Speed output depends on units selected
Each telemetry message will be sent twelve times unless an acknowledge message is received.
Laptime Pulse
If the Laptime Pulse option is enabled, a 250ms pulse is output on the serial port instead of a serial
stream.
Note that selecting either of these two options disables the other option. It is possible to deactivate
both modes by un-ticking whichever option is currently selected, if any.
Split Output
Similar to the Laptime Telemetry option, this enables split time data or a 250ms pulse to be output
via the telemetry serial port whenever a split line is crossed. The output given will be the same type
as the lap timing output, so if you have enabled Laptime Telemetry the split output will be in the
Telemetry format; if you have enabled Laptime Pulse the split output will be in the Laptime Pulse
format. If this option is disabled, no output will be given.
One Shot Mode
By default, DriftBox starts the lap time from a start / finish line. If you want to start the lap time from
the moment you start moving, then you need to select „One Shot Mode‟. To set this mode:
Press the MENU button to enter the LAP TIMING menu.
Highlight „ONE SHOT MODE‟ and press OK to activate.
Bring the car to a halt at the start point (previously set using either set start/finish method.)
After two seconds the following screen will appear:
The screen will count down from 5 to 1 after it reaches 1 the following screen will appear: