USER MANUAL V1.10 Scavenger Transmitter Module STM 330 / STM 331 / STM 330C / STM 332U / STM 333U May 15, 2013 Observe precautions! Electrostatic sensitive devices! 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 EnOcean GmbH Kolpingring 18a 82041 Oberhaching Germany Phone +49.89.67 34 689-0 Fax +49.89.67 34 689-50 info@enocean.com www.enocean.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U REVISION HISTORY The following major modifications and improvements have been made to the first version of this document: No 0.55 0.90 0.91 0.95 0.99 1.00 1.01 1.02 1.03 1.04 1.05 1.10 Major Changes Initial version New drawings added; Agency certifications added; Charging circuitry modified; editorial changes Drawings updated Parameters of A/D converter corrected and specified in more detail; Charging circuitry modified.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U TABLE OF CONTENT 1 RELATED DOCUMENTS ................................................................................... 4 2 2.1 2.2 2.3 2.4 2.5 GENERAL DESCRIPTION ................................................................................. 5 Basic functionality ......................................................................................... 5 Technical data .............................................................
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 1 RELATED DOCUMENTS STM 330 / 331 is available in several frequency variants and with different antennas: STM 330 (868.3MHz, whip antenna, vertical button) STM 331 (868.3MHz, helical antenna, vertical button) STM 330C (315.0MHz, whip antenna, vertical button) STM 332U (902.875MHz, whip antenna, side button) STM 333U (902.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 2 GENERAL DESCRIPTION 2.1 Basic functionality The extremely power saving RF transmitter module STM 33x of EnOcean is optimized for realization of wireless and maintenance free temperature sensors, or room operating panels including set point dial and occupancy button. It requires only a minimum number of external components and provides an integrated and calibrated temperature sensor.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 2.2 Technical data Antenna whip antenna (STM 330 / STM 330C / STM 332U) helical antenna (STM 331, STM 333U) 315.0 MHz (STM 330C) / 868.3 MHz (STM 330 / STM 331) / 902.875MHz ( STM 332U / STM 333U) Frequency Radio Standard Data rate/Modulation type STM 330: +8 dBm1 (EIRP) ± 2.5 dB2 STM 331: +5 dBm1 (EIRP) ± 2.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U © 2013 EnOcean | www.enocean.com STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 2.4 Environmental conditions Operating temperature Storage temperature Shelf life (in absolute darkness) Humidity -20 °C … +60 °C 4 -20 °C … +60 °C, recommended : +10 °C…+30 °C, <60%r.h. 36 months after delivery5 0% … 93% r.h., non-condensing The module shall not be placed on conductive materials, to prevent discharge of the internal energy storages5. Even materials such as conductive foam (ESD protection) may have negative impact.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3 FUNCTIONAL DESCRIPTION 3.1 Simplified firmware flow chart and block diagram © 2013 EnOcean | www.enocean.com STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U VCHAR VDD Whip or helical antenna BALUN 16MHz Oscillator DOLPHIN EO3000I UVDDext OCC LRN Power management RF Transmitter 868.3 MHz (STM 33x) 315.0 MHz (STM 330C) 902.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.3 Pin description and operational characteristics STM 33x Hardware Symbol GND VDD STM 33x Function Characteristics Firmware Symbol GND Ground connection VDD Supply voltage 2.1 V – 5.0 V; Start-up voltage: 2.6 V Maximum ripple: see 3.6 Not available at pin header. Supply for proRecommended supply voltage for gramming I/F programming 3V VCHAR VCHAR Charging input Input for an external energy harvester or a battery. See 3.10.
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USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U For I/O pins configured as analog pins the IOVDD voltage level is not relevant! See also 3.3.2. IOVDD If configured as digital I/O ADIO0 ADIO1 ADIO2 ADIO3 ADIO4 ADIO5 ADIO6 ADIO7 SCSEDIO0 SCLKDIO1 WSDADIO2 RSDADIO3 3.3.2 Analog and digital inputs Parameter Analog Input Mode Conditions / Notes Single ended Measurement range Min 0.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.3.4 Programming Interface The positions of the pads needed for programming are shown in the layout below. Data are available from EnOcean as Gerber files (STM3XY(C)_05.GTL and STM3XY(C)_05.GK0). Number Symbol 1 2 3 4 5 6 7 8 9 10 VDD GND PROG_EN RESET SCSEDIO0 SCLKDIO1 WSDADIO2 RSDADIO3 ADIO7 ADIO6 Only if in addition to programming I/F a serial interface is needed Top layer If VDD is not accessible, e.g.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.4 Absolute maximum ratings (non operating) Symbol VDD VGC VCHAR ICHAR GND VINA VIND 3.5 ICHAR 3.6 Min -0.5 1.5 0 0 -0.5 -0.5 Max 5.5 3.3 6 45 0 2 3.6 Units V V V mA V V V Max 5.0 3.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.7 Configuration 3.7.1 Configuration via pins The encoding input pins have to be left open or connected to GND in correspondence with the following connection schemes. These settings are checked at every wake-up.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.7.2 Configuration via serial interface Via the programming interface the configuration area can be modified. This provides a lot more configuration options. Values set via serial interface override hardware settings! These settings are read after RESET or power-on reset only and not at every wake-up of the module! Parameter Configuration via pins See section 3.7.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U Please select STM 33x and press “Read configuration” button before modifying the entries! © 2013 EnOcean | www.enocean.com STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.8 Radio telegram 3.8.1 Normal operation In normal operation STM 33x transmits telegram data according to the selected EEP (EnOcean Equipment Profile). For details please refer to the EnOcean Equipment Profiles 2.1 specification. http://www.enocean-alliance.org/fileadmin/redaktion/enocean_alliance/pdf/EnOcean_Equipment_Profiles_EEP2.1.pdf 3.8.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 3.10 Charging circuitry The figure below shows the internal charging circuit. It is controlled via the WXODIO pin of EO3000I which switches according to the status of the internal threshold detector. For details please refer to our Dolphin Core Description documentation. The WXIDIO pin is used to disconnect the goldcap at voltages below VOFF to avoid deep discharge. An external 3 V backup battery can be connected at VCHAR. 3.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U Calculations are performed on the basis of electric charges because of the internal linear voltage regulator of the module. Energy consumption varies with voltage of the energy storage while consumption of electric charge is constant.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 4 APPLICATIONS INFORMATION 4.1 Using the WAKE pins The logic input circuits of the WAKE0 and WAKE1 pins are supplied by UVDD and therefore also usable in “Deep Sleep Mode”. Due to current minimization there is no internal pull-up or pull-down at the WAKE pins. When STM 33x is in “Deep Sleep Mode” and the logic levels of WAKE0 and / or WAKE1 is changed, STM 33x starts up.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 4.2 Temperature sensor STM 33x provides an internal temperature sensor. The sensor is part of the EO3000I IC and measures the chip temperature. Therefore it is important to provide a good thermal connection of the IC to the environment by ensuring sufficient ventilation of air inside the housing. Only then the measurement will represent the ambient temperature.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 4.5 Antenna layout 4.5.1 Whip antenna (STM 330 / STM 330C / STM 332U) Specification of the whip antenna; L=150 mm @ 315 MHz, L=86 mm @ 868 MHz, L=64mm @ 902.875MHz Antenna layout recommendation: STM 330 without host PCB STM 330 with host PCB 868/902 MHz: > 1 cm 315 MHz: > 2 cm Glass, wood, concrete, metal 868/902 MHz: > 2 cm 315 MHz: > 4 cm 868/902 MHz: > 2 cm 315 MHz: > 4 cm © 2013 EnOcean | www.enocean.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 4.5.2 Helical antenna (STM 331 / STM 333U) 868 MHz/902 MHz Antenna recommendation: STM 33x without host PCB STM 33x with host PCB 868/902 MHz: > 5 mm 315 MHz: > 10 mm Plastic 868/902 MHz: > 2 mm 315 MHz: > 4 mm © 2013 EnOcean | www.enocean.com Host PCB GND plane Glass, wood, concrete, metal STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 4.6 Mounting STM 33x into a housing The figure below shows an example of a housing in which the module can be mounted (with antenna pointing to the left). Design data of the housing and the modules is available in .igs format.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 4.7 Transmission range The main factors that influence the system transmission range are type and location of the antennas of the receiver and the transmitter, type of terrain and degree of obstruction of the link path, sources of interference affecting the receiver, and “Dead” spots caused by signal reflections from nearby conductive objects.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 5 AGENCY CERTIFICATIONS The modules have been tested to fulfil the approval requirements for CE (STM 330 / STM 331) and FCC/IC (STM 330C / STM 332U / STM 333U) based on the built-in firmware. When developing customer specific firmware based on the API for this module, special care must be taken not to exceed the specified regulatory limits, e.g. the duty cycle limitations! 5.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 5.2 FCC (United States) certification STM 330C / 332U / 333U LIMITED MODULAR APPROVAL This is an RF module approved for Limited Modular use operating as an intentional transmitting device with respect to 47 CFR 15.231(a-c) and is limited to OEM installation. The module is optimized to operate using small amounts of harvested energy, such as can be collected by a small solar cell exposed to ambient light.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U OEM Requirements In order to use EnOcean’s FCC ID number, the OEM must ensure that the following conditions are met. End users of products, which contain the module, must not have the ability to alter the firmware that governs the operation of the module. The agency grant is valid only when the module is incorporated into a final product by OEM integrators.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U The OEM must sign the OEM Limited Modular Approval Agreement with EnOcean The module must be used with only the following approved antenna(s). Model STM 330C STM 332U STM 333U 5.3 Type Pre-installed Wire/Monopole Pre-installed Wire/Monopole Pre-installed Helical Antenna Gain 1.0 dBi 1.0 dBi -1.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 5.4 FCC Regulatory Statements This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by manufacturer could void the user’s authority to operate the equipment.
USER MANUAL V1.05 STM 330 / STM 331 / STM 330C / STM 332U / STM 333U 6 Label Information Product variant FCC ID © 2013 EnOcean | www.enocean.com Revision Date Code (ww/YY) IC ID STM 330 / STM 331 / STM 330C / STM 332U / STM 333U User Manual V1.
