USER MANUAL
STM 550 / EMSI
–
ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550 / EMSI User Manual | v1.3 | September 2020 | Page 60/97
9.5.13
THRESHOLD_CFG1
STM 550 can reduce the reporting interval based on the illumination of the solar cell, the
light illumination of the light level sensor, the temperature or the humidity as described in
chapter 2.3.
The use of these reduced reporting intervals is enabled by the THRESHOLD_CFG1 register
shown in Figure 40 below.
THRESHOLD_CFG1 (Default: 0x00)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
HUMIDITY SENSOR TEMP SENSOR
LIGHT SENSOR
SOLAR CELL
Figure 40
–
THRESHOLD_CFG1 register
The encoding used by the SOLAR CELL bit field is shown in Table 19 below.
SOLAR CELL
Reporting interval reduction based on solar cell illumination
0b00 (Default)
Disabled (No reporting interval reduction)
0b01
Enabled, Reporting interval reduction if illumination below threshold
0b10
Enabled, Reporting interval reduction if illumination above threshold
0b11
Reserved (Do not use)
Table 19
–
SOLAR CELL bit field encoding
The encoding used by the LIGHT SENSOR bit field is shown in Table 20 below.
LIGHT SENSOR
Reporting interval reduction based on light sensor illumination
0b00 (Default)
Disabled (No reporting interval reduction)
0b01
Enabled, Reporting interval reduction if illumination below threshold
0b10
Enabled, Reporting interval reduction if illumination above threshold
0b11
Reserved (Do not use)
Table 20
–
LIGHT SENSOR bit field encoding