USER MANUAL
STM 550 / EMSI
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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 18/97
2.3.5
Humidity-controlled reporting interval
In HVAC (heating, ventilation, air conditioning) applications it might be desirable to receive
status updates more often if the measured humidity is significantly above or below the target
value.
Figure 5 below illustrates the use of the humidity-controlled reporting interval.
Figure 5
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Humidity-controlled reporting interval
STM 550 can use the humidity measured by the temperature and humidity sensor to trigger
a higher update rate. To enable this feature, use the following steps:
1.
Make sure that the EEP selected using the EEP register as described in chapter 9.5.8
reports humidity
2.
Configure the desired humidity threshold using the HUMIDITY_THRESHOLD register
described in chapter 9.5.25
3.
Configure the desired reporting interval using the HUMIDITY_TX_INTERVAL register
described in chapter 9.5.26
4.
Enable the use of the defined parameters using the HUMIDITY SENSOR bit field in
the THRESHOLD_CFG1 register of the NFC interface as defined in chapter 9.5.13.
Consider the available energy before lowering the reporting interval as discussed in chapter
2.3.1.