User's Manual

Table Of Contents
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 | v1.4 | November 2020 | Page 26/97
4 Product interface
The STM 550 product interface consists of the following elements:
LRN button and LED
Solar cell harvesting energy from ambient light
Ambient light sensor (co-located with the LED)
Magnet contact sensor
Ventilation slots to ensure airflow to the temperature and humidity sensor
Backup battery slot for a CR1632 battery
Backup battery ejector slot (on the back side)
Product label (on the back side)
Figure 13 below shows the external interfaces on the front side of the STM 550 module.
Figure 13 STM 550 product interface (front side)
Figure 14 below shows the external interfaces on the back side of the STM 550 module. The
orientation indicator points towards the side where the magnet contact is located.
Figure 14 STM 550 product interface (back side)