Kona Home Sensor TRM
T0005370_TRM
Version Rev-C 1.0
TEKTELIC Communications Inc.
Confidential
Page 27 of 34
3.4.5.3
Default Configuration
Table 3-13 shows the default values for the Light transducer configuration registers. Light
Sensing in Home Sensor modules
before Rev D
is buggy in the sense that any attempt to set the
Light Threshold causes the Threshold to be automatically set to 64 such that the transducer
status is always “dark” (the Sensor becomes light de
-sensitized). However, if the Light
Threshold is not touched, the Sensor operates expectedly with the default value given in Table
3-13
, which basically means that the slightest amount of light triggers the Sensor (for a “bright”
status). Otherwise (i.e. only for absolute darkness), the status is dark.
Table 3-13: Default Values of Light Transducer Configuration Registers
Sample Period
0 (disabled)
Threshold
1 (darkest threshold)
3.4.5.4
Example DL Messages
In the following example payloads, the Command Field is boldfaced:
•
Set the Threshold to 32 and check the light condition every half an hour:
o
DL payload: { 0x
C8
20
C7
00 00 07 08 }