EnOcean STM350U User Manual
Observe precautions! Electrostatic sensitive devices!
ETHSU Easyfit Temperature and Humidity Sensor
21.12.2017
USER MANUAL
ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR
Patent protected:
WO98/36395, DE 100 25 561, DE 101 50 128,
WO 2004/051591, DE 103 01 678 A1, DE 10309334,
WO 04/109236, WO 05/096482, WO 02/095707,
US 6,747,573, US 7,019,241
© 2017 EnOcean | www.enocean.com F-710-017, V1.0 ETHSU User Manual | v1.0 | December 2017 | Page 1/14
Version
Author
Reviewer
Date
Major Changes
1.0
MKA
MKA
22.12.2017
First release
USER MANUAL
ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR
REVISION HISTORY
The following major modifications and improvements have been made to this document:
Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany
www.enocean.com, info@enocean.com, phone +49 (89) 6734 6890
© EnOcean GmbH, All Rights Reserved
Other trademarks and trade names are those of their respective owners.
Important!
This information describes the type of component and shall not be considered as assured
characteristics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry
and specifications are subject to change without notice. For the latest product specifications, refer to the EnOcean website: http://www.enocean.com.
As far as patents or other rights of third parties are concerned, liability is only assumed for
modules, not for the described applications, processes and circuits.
EnOcean does not assume responsibility for use of modules described and limits its liability
to the replacement of modules determined to be defective due to workmanship. Devices or
systems containing RF components must meet the essential requirements of the local legal
authorities.
The modules must not be used in any relation with equipment that supports, directly or
indirectly, human health or life or with applications that can result in danger for people,
animals or real value.
Components of the modules are considered and should be disposed of as hazardous waste.
Local government regulations are to be observed. Packing: Please use the recycling operators known to you.
© 2017 EnOcean | www.enocean.com F-710-017, V1.0 ETHSU User Manual | v1.0 | December 2017 | Page 2/14
USER MANUAL
ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR
TABLE OF CONTENT
1 RELATED DOCUMENTS ................................................................................... 4
2 GENERAL DESCRIPTION ................................................................................. 5
2.1 Basic functionality ......................................................................................... 5
2.2 Technical Data .............................................................................................. 6
2.3 Environmental conditions ............................................................................... 6
2.4 Ordering Information ..................................................................................... 6
2.5 Physical dimensions ....................................................................................... 7
2.5.1 Mechanical Outline ..................................................................................... 7
3 FUNCTIONAL DESCRIPTION ............................................................................ 8
3.1 Simplified firmware flow chart ......................................................................... 8
3.2 Simplified device block diagram ...................................................................... 9
3.3 Radio telegram format ................................................................................... 9
3.3.1 Teach-in telegram ..................................................................................... 9
3.3.2 Transmit timing ......................................................................................... 9
4 Application Information ................................................................................ 10
4.1 Transmission range ..................................................................................... 10
5 Regulatory information ................................................................................. 11
5.1 FCC (United States) Certificate ...................................................................... 12
5.2 FCC (United States) Regulatory Statement ..................................................... 12
5.3 IC (Industry Canada) Certificate .................................................................... 13
5.4 IC (Industry Canada) Regulatory Statement ................................................... 13
© 2017 EnOcean | www.enocean.com F-710-017, V1.0 ETHSU User Manual | v1.0 | December 2017 | Page 3/14
USER MANUAL
ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR
1 RELATED DOCUMENTS
This document describes operation of ETHSU modules with their built-in firmware.
We recommend following our application notes, in particular AN001: EnOcean Wireless Systems – RANGE PLANNING GUIDE, AN002: RANGE EXTENSION WITH ENOCEAN Concept design of extending range with EnOcean networks and AN010: Short-Range Devices, Indoor Radio Propagation.
© 2017 EnOcean | www.enocean.com F-710-017, V1.0 ETHSU User Manual | v1.0 | December 2017 | Page 4/14
USER MANUAL
ETHSU – EASYFIT TEMPERATURE AND HUMIDITY SENSOR
2 GENERAL DESCRIPTION
2.1 Basic functionality
EnOcean EasyFit ETHSU is a wireless and maintenance
free temperature and humidity sensor. It requires no
external components and provides on-board a calibrated temperature and humidity sensor.
Power supply is provided by a small pre-installed solar
cell or an external 3 V backup battery.
An energy storage element is installed in order to
bridge periods with no supply from the energy harvester.
The module provides an internal cyclic wake up every
100s. After wake up, the internal microcontroller reads
the status of the temperature and humidity sensor. A
radio telegram will be transmitted in case of a significant change of measured temperature or measure humidity.
In case of no relevant input change, a redundant retransmission signal (heartbeat) is sent
randomly within 8 to 15 minutes to announce the current values.
In addition to the cyclic wake-up, a wake up can be triggered externally using the input for
the occupancy button or the internal LRN button.
Key product features
Fully autonomous operation under sufficient lighting with pre-installed solar cell
Factory calibrated on-board temperature and humidity sensor
Integrated energy storage and charging circuit
Integrated LRN button and TX indicator LED
© 2017 EnOcean | www.enocean.com F-710-017, V1.0 ETHSU User Manual | v1.0 | December 2017 | Page 5/14
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