2JCIE-BL01-P1 Environment Sensor (PCB Type) User’s Manual (A280)
24
Control Service (Service UUID: 0x3030)
2.3.
Read and Write device control parameters.
Table 25. List of Characteristics in Control Service
Characteristics
UUID
Characteristics
Properties
Byte
R
W
N
I
0x3031
Time information
✔
✔
4
0x3032
LED on duration
✔
1
0x3033
Error status
✔
✔
4
0x3034
Trigger
✔
2
2.3.1
Time information
(Characteristics UUID: 0x3031)
Set UNIX TIME from the Central device for time adjustment of the recording data in the flash
memory.
Time information based on this setting is recorded for each page of the flash memory.
* Note: Memory recording of measured data is not started unless time set to this Characteristic.
Table 26. Time information format
Byte
Field
Format
Contents
0
UNIX TIME
0
UInt32
Unit
：
1 sec
Range
：
1970/1/1 0:00:01
～
2106/2/7 6:28:15
1
1
2
2
3
3
2.3.2
LED on duration
(Characteristics UUID: 0x3032)
With this setting, embedded LED lights for the specified time period.
It can be used for identifying the sensor which is currently connected, such as when there are a
plurality of sensors.
Table 27. LED on duration format
Byte
Field
Format
Contents
0
LED on duration
UInt8
Unit
：
1 sec
Range
：
1
～
10 sec
