© EnOcean | www.enocean.com Subject to modifications | v1.2 | October 2014
Humidity sensor measurement range 0%-100% r.h.
resolution 0.4% r.h.
accuracy typ. ±5% r.h. between 30%-70% r.h. and 0-40°C
Power supply via SWPWR pin from STM 33x / STM 330C / STM 33xU / STM 431J
Module dimensions 18 x 13 mm
Operating temperature -20 up to +60 °C
Please ensure sufficient ventilation of air inside the housing. Otherwise the
measurement will not represent ambient humidity.
Please avoid any material within 2mm distance from the 7mm x 7mm area de-
picted in the figure below (in plane as well as above and below the PCB). The
measurement might be influenced by detuning the capacitive sensor.
Humidity Sensor Module
HSM 100
The humidity sensor module HSM 100 ex-
tends the functionality of STM 33x /
STM 330C / STM 33xU / STM 431J
temperature sensor modules.
Functional Principle
HSM 100 contains an internal calibrated humidity
sensor. It can be plugged onto members of the
STM 33x / STM 431J module family via a 20 pin
connector. The sensor signal is read via the
ADIO3 input of STM 33x / STM 431J.
In order to be able to read the sensor signal,
STM 33x / STM 431J has to be configured to an
EEP supporting humidity. This can be done via
Dolphin Studio.
