User's Manual

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Item
TYPE
POS
HB
TYPE field
Bit
Name
Value
Description
7~4
TYPE
0x9
Message type, Device can use it to identify different
downlink messages.
3~0
Reserved
0x0
Reserved for future use.
POS field
Bit
Name
Value
Description
15~0
POS
0~65535
The period position report, unit 5s. 0 means OFF.
(Big endian)
HB field
Bit
Name
Value
Description
7~0
HB
1~255
The period of Heartbeat message, unit 30s. This
value must be larger than 0.
4.4.4 Command request
Bytes
1
1
1
Item
TYPE
MSGID
VALUE
TYPE field
Bit
Name
Value
Description
7~4
TYPE
0xA
Message type, Device can use it to
identify different downlink messages.
3~0
COMMAND
0x2: register request
0x3: device reset
0x4:Stop scanning BLE
0x5:Start scanning BLE
0x6:Change scan starting
time
0x7:Change scan period
Requested command.
0x2 used to request the Device to send
register message.
0x3 used to reset the Device.
0x4 used to stop continuous scanning
BLE, only enable scanning function 3
seconds ahead of sending. This feature
is only suitable for outdoor Device, for
indoor Device it always scan BLE.
0x5 used to start continuous scanning
BLE.
0x6 used to advance or delay the scan
starting time.
0x7 used to change scan time for
outdoor Device, the default scan time is
3 seconds.
C256U-PQ User Manual