W
IRELESS
A
MBIENT
L
IGHT
S
ENSOR
C
OPYRIGHT
©
2019,
R
ADIO
B
RIDGE
I
NC
.
W
IRELESS
A
MBIENT
L
IGHT
S
ENSOR
P
AGE
9
OF
14
The restoral margins are unsigned values (1-15) and if it is set to 0, the feature is
disabled.
Periodic reporting is described in the section Periodic Reports.
6.3.2.
Report on Change Mode
Report on Change mode is set when byte 0 of the payload is set to 0x01. The remainder
of the payload is defined in the following table.
Table 9 Downlink Configuration Message for Report on Change Mode
Byte Description
0
0x01 (Report on Change mode)
1
Periodic reporting in minute or hour intervals. Default is 0 (disabled)
2
Not used
3
Ambient light increase
4
Ambient light decrease
If the ambient light increase or decrease are non-zero, then the sensor will send an alert
any time the ambient light changes by the specified amount. For example, if the
ambient light increase and decrease are set to 5 (just a relative measurement, no units
on these values), then an alert is sent every time the ambient light changes by 5 from
the last report. The ambient light increase and decrease are unsigned values.
Periodic reporting is described in the section Periodic Reports.
6.3.3.
Periodic Reports
The ambient light sensor can also send periodic updates, and this is defined in byte 1 of
both modes. A setting of 0 will disable periodic reporting. The period is defined in 1 hour
increments when the most significant bit is 0, and it is defined in 1 minute increments
when the most significant bit is 1 as shown in the following table.
