© 2019 EnOcean | www.enocean.com
User Manual May 2019 | Page 2/49
USER MANUAL
Scavenger Transmitter Module
STM 330 / STM 331 STM 331U / STM 332U / STM 333U
(Stepcode DE and later)
REVISION HISTORY
The following major modifications and improvements have been made to the first version of
this document:
No
Major Changes
0.55
Initial version
0.90
New drawings added; Agency certifications added; Charging circuitry modified; editorial changes
0.91
Drawings updated
0.95
Parameters of A/D converter corrected and specified in more detail; Charging circuitry modified.
0.99
Pin for connection of backup battery changed; ICHAR modified, drawings updated
1.00
Block diagram and pin description modified.
1.01
Table in 2.11 modified
1.02
Remark added in 3.5; additional remarks in 2.11; label information modified in chapter 5; Shelf life
added in 1.4; supply voltage for programming added in 2.2; Conducted output power replaced by radi-
ated output power in 1.2; programming interface added in 2.3.2; other editorial changes
1.03
Support for HSM 100 humidity sensor module added
1.04
Specification of shelf life improved; figure added in 3.3.1; Chapter Related Documents added.
1.05
STM 331 with helix antenna added ( helix antenna description), hints to update module via
STMSEN
1.10
Product variants STM 332U and STM 333U added
1.15
Included PCB Drawings of STM 332U / STM 333U
1.20
Added information on connector type
1.30
Added advanced security information of firmware STM 330 / STM 331. Default manufacturer ID code is
EnOcean.
1.31
Improved ext. button circuit example to avoid keybounce of digital inputs, deleted STM 300C, R&TTE ->
R&TTE / RED, deleted EOP 300
1.4
New Dolphin layout, STM 330C deleted, Added STM 331U, R&TTE -> RED
2.0
Update with long term energy storage replacement, additional transport mode for shelf storage & air
cargo, optimized secure mode, additional information on market approval for secondary battery, new
drawings, new QR code and deleted 315 MHz antenna description, brand changed
Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany
www.enocean.com, [email protected], phone ++49 (89) 6734 6890
© EnOcean GmbH
All Rights Reserved
Important!
This information describes the type of component and shall not be considered as assured characteris-
tics. 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 web-
site: 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 contain-
ing 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.
