2JCIE-BL01-P1 Environment Sensor (PCB Type) User’s Manual (A280)
9
2.1.1
Latest data
(Characteristics UUID: 0x3001)
Measured sensor data is updated every measurement interval and reflected in Latest data. The
measurement interval can be changed in 2.2.1 Measurement interval.
In addition to regular update in set measurement interval, when sensor is disconnected from Central
devices, the measurement is immediately carried out then the contents of this characteristics is
updated. However, in case of immediate data measurement, this measured data is not saved to the
memory and row number is not updated.
Table 8. Latest data format
*1 In the operation with data recording mode, the value is always zero unless Time information is set.
*2 Discomfort Index, Heatstroke risk factor
（
WBGT approximation
）
are calculated only by temperature
and humidity. These information is just a rough indication and for referential use only.
Byte
Field
Format
Contents
0
Row number / Sequence number
UInt8
With Data Recording: Range
：
0
～
12 *1
Without Data Recording: Range
：
0
～
255
1
Temperature
L
SInt16 Unit
：
0.01 degC
2
H
3
Relative Humidity
L
SInt16 Unit
：
0.01 %RH
4
H
5
Light
L
SInt16 Unit
：
1 lx
6
H
7
UV Index
L
SInt16 Unit
：
0.01
8
H
9
Barometric Pressure
L
SInt16 Unit
：
0.1 hPa
10
H
11
Sound noise
L
SInt16 Unit
：
0.01 dB
12
H
13
Discomfort Index *2
L
SInt16 Unit
：
0.01
14
H
15
Heatstroke risk factor *2
L
SInt16 Unit
：
0.01 degC
16
H
17
Supply voltage
L
UInt16 Unit
：
1 mV
18
H
