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P =1, Output1;
=2, Output2;
=3, Output3;
=4, Output4;
=5,Output5
Set GPRS Interval
W******,014,XXXXX
W000000,014,00060
Remarks: to set time interval for sending GPRS packets.
XXXXX should be in five digits and in unit of 10 seconds.
XXXXX=00000, to turn off this function;
XXXXX=00001~65535, time interval for sending GPRS packet and in unit of 10 seconds.
In this example, the tracker will send every 600 seconds (10 minutes).
Set Heartbeat Interval
W******,015,data
W000000,015,10
Remarks: to set interval for heartbeat.
Data: in unit of minute
data=0, to turn off this function;
data=1~65535, set interval for heartbeat.
In this example, the tracker will send heartbeat every 10 minutes.
Heading Change Report
W******,036,degree
W000000,036,90
Remarks: when the heading direction of the tracker changes over the preset degree, a message with location data will be sent
back to the server by GPRS.
degree=0, to turn off this function.
degree=[1,360], to set degree of direction change.
For more information regarding GPRS tracking please refer to <GPRS Communication Protocol>
Output Control (Immediate)
W******,020,P,F
W000000,020,1,1
Remarks:
F =0, to close the output (open drain)
=1, to open the output (Low voltage)
For example, if you have connected Output1 with a relay, you can send W000000,020,1,1 to stop the engine.
Output Control (Conditional)
W******,120,ABCDE
W******,220,ABCDE
W000000,120,10000
W000000,220,10000
Remarks: This function is achievable only when the speed is below 10km/h(command 120) or 20km/h(command 220) and
meantime GPS is available.
ABCDE represents Out1, Out2, Out3, Out4, and Out5 respectively.
If A or B or C or D or E,
=0, to close the output (open drain)
=1, to open the output (low voltage)
=2, to remain previous status
Sleep Mode
W******,021,XX###
W000000,021,02###
Remarks: this setting is for power saving.
XX=00 turn off sleep mode
XX=01 Level I
XX=02 Level II
###
is the ending character
Here is some explanation for the sleep mode. First, assume that the GPS acquisition time is ONE minute.