USER MANUAL Scavenger Transceiver Module STM 300 / STM 300C / STM 300U June 7th, 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 1.34 STM 300 / STM 300C / STM 300U REVISION HISTORY The following major modifications and improvements have been made to the first version of this document: No 1.01 1.10 1.20 1.25 1.26 1.30 1.31 1.32 1.33 1.34 1.35 Major Changes Tape running direction added in 3.8 Application note for multiple digital inputs with WAKE functionality added. Error corrected in 3.5.1. and 4.1: Maximum gain of external antenna at 50 Ohm output RF_50 is 0 dBi! Charging circuit in 3.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U TABLE OF CONTENT 1 MODULE VARIANTS AND RELATED DOCUMENTS ............................................... 4 2 2.1 2.2 2.3 2.4 2.5 GENERAL DESCRIPTION ................................................................................. 4 Basic functionality ......................................................................................... 4 Technical data ...............................................................................................
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 1 MODULE VARIANTS AND RELATED DOCUMENTS The STM300 Scavenger Transceiver Module is available in several operating frequency variations: STM 300: STM 300C: STM 300U: 868.350 MHz 315.000 MHz 902.875 MHz Inside this manual the term STM 300x can be used interchangeably for any of the above frequency. This document describes operation of STM 300x modules with their built-in firmware.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U compared to the last sending or in case of a significant change of measured analogue values (different input sensitivities can be selected). In case of no relevant input change a redundant retransmission signal is sent after a user configurable number of wake-ups to announce all current values. In addition a wake up can be triggered externally.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Radio Regulations R&TTE EN 300 220 (STM 300) FCC CFR-47 Part 15 (STM 300C / STM 300U) 1) according to ISO/IEC 14543-3-10 2) @ 0.1% telegram error rate (based on transmitted sub-telegrams) 3) using +1dBm (V 1.13) power settings which comply to limited modular approval 2.3 Physical dimensions PCB dimensions STM 300/C/U: 22 x 19 x 3.1 mm 1.9 g Weight Unless otherwise specified dimensions are in mm. Tolerances: PCB outline dimensions 0.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Type STM 300 STM 300C STM 300U Ordering Code S3001-D300 S3031-D300 S3051-D300 Frequency 868.300 MHz 315.000 MHz 902.875 MHz Suited solar cells (for technical details please refer to the ECS3x0 data sheet): Type ECS 300 ECS 310 Ordering Code S3005-D305 S3005-D310 © 2013 EnOcean | www.enocean.com Size 35.0 × 12.8 × 1.1 mm 50.0 × 20.0 × 1.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3 3.1 FUNCTIONAL DESCRIPTION Simplified firmware flow chart and block diagram © 2013 EnOcean | www.enocean.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U RF_WHIP RF_50 VDD IOVDD GND VDDLIM RF Transceiver Power Management V_OUT DVDD µController GND PROG_EN CW_0 CW_1 CP_0 CP_1 SCO CCO GND RESET GND WXIDIO WXODIO GND UVDD WAKE0 Hardware pin out WAKE1 3.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U regarding the module hardware, such as pin out, layout recommendations, charging circuitry, antenna options, and approvals. 3.
USER MANUAL 1.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3.3.1 GPIO supply voltage For digital communication with other circuitry (peripherals) the digital I/O configured pins of the mixed signal sensor interface (ADIO0 to ADIO7) and the pins of the programming interface (SCSEDIO0, SCLKDIO1, WSDADIO2, RSDADIO3) may be operated from supply voltages different from DVDD.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3.3.2 Analog and digital inputs Parameter Analog Input Mode Measurement range Conditions / Notes Single ended Min Input capacitance DC 62.5 Single ended against GND @ 1 kHz Single ended against GND @ 1 kHz 10 10 DNL 8 bit measurement Offset error Gain error 6 8 +1 -4 +1 -1 Code <=50 Code >50 DNL CodeADC Offset Error: Describes the offset between the minimal possible code and 0xFF code 0x00.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Parameter Digital Input Mode Conditions / Notes Min Typ Max 2/3 IOVDD Input HIGH voltage V 1/3 IOVDD 200 85 Input LOW voltage Pull up resistor 3.4 Symbol VDD VDDLIM IOVDD GND VINA VIND1 VIND2 3.5 Symbol VDD VDDLIM IOVDD GND VINA VIND1 VIND2 3.6 @IOVDD=1.7 … 1.9 V @IOVDD=3.0 … 3.6 V Units 90 38 132 54 V k k Absolute maximum ratings (non operating) Parameter Supply voltage at VDD and VDDLIM Min -0.5 Max 5.5 -0.5 0 -0.5 -0.5 3.6 0 2 3.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Threshold Detector VON Turn on threshold VOFF Turn off threshold Automatic shutdown if VDD drops below VOFF 2.3 1.85 2.45 1.9 2.6 2.1 V V Voltage Limiter STM 300 provides a voltage limiter which limits the supply voltage VDD of STM 300 to a value VDDLIM which is slightly below the maximum VDD ratings by shunting of sufficient current. Threshold detector STM 300 provides an ultra low power ON/OFF threshold detector.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3.8 Configuration 3.8.1 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 1.34 STM 300 / STM 300C / STM 300U 3.8.2 Configuration via programming interface Via the programming interface the configuration area can be modified. This provides a lot more configuration options. Values set via programming interface override hardware settings! These settings are read after RESET or power-on reset only and not at every wakeup of the module! Parameter Configuration via pins See section 3.8.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3.9 Radio telegram 3.9.1 Normal operation Telegram content seen at programming interface of STM 300x or at DOLPHIN API: = 0x07 (Telegram type “4BS”) ORG Data_Byte1..
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3.9.2 Teach-in telegram In case a manufacturer code is programmed into the module the module transmits – instead of transmitting a normal telegram – a dedicated teach-in telegram if digital input DI_3=0 at wake-up or wake-up via WAKE1 pin (LRN input) With this special teach-in telegram it is possible to identify the manufacturer of a device and the function and type of a device.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 3.11 Energy consumption 100 10 Current [mA] 1 0.1 0.01 0.001 0.0001 0.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4 APPLICATIONS INFORMATION 4.1 How to connect an energy harvester and energy storage STM 300 is designed for use with an external energy harvester and energy storage. In order to support a fast start-up and long term operation with no energy supply available usually two different storages are used. The small storage fills quickly and allows a fast start-up.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Charge switcher The charge switcher connects both short term storage and long term storage parallel to the energy source as soon as the STM 300 supply voltage reaches the typical VON threshold of 2.45 V. Supposing VDD then falls below VON, the energy source will be switched back to short term storage alone, for faster recharging.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.2 Using the SCO pin STM 300 provides an output signal at SCO which is suited to control the supply of the sensor circuitry. This helps saving energy as the sensor circuitry is only powered as long as necessary. In the default configuration SCO provides a HIGH signal 2 ms (delay time) before the analog inputs are read. Via the programming interface (see 3.8.2) it is possible to adjust the delay time and also the polarity of the signal.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U The figure above shows two examples how the WAKE inputs may be used. When the LRN button is pressed WAKE1 is pulled to GND and a teach-in telegram is transmitted. As long as the button is pressed a small current is flowing from UVDD to GND. WAKE0 is connected to a toggle switch. There is no continuous flow of current in either position of the switch.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.5 Antenna options STM 300x 4.5.1 Overview Several antenna types have been investigated by EnOcean. Please refer to our application notes AN102, and AN105 which give an overview on our recommendations. All STM300x modules have been approved with whip antenna, and STM 300U with helical and chip antenna in addition. 868.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.5.3 Helical antenna (supplier: EnOcean) 315 MHz EnOcean Type: ANT 300C Dimensions differ from drawing below. No limited modular approval available. Please contact EnOcean for MOQ. 868.3 MHz EnOcean Type: ANT 300 Dimensions according to drawing below Connect to RF_WHIP Please contact EnOcean for MOQ. Minimum GND plane: 35 mm x 30 mm Minimum distance space: 10 mm 902.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.5.4 Chip antenna (supplier: Mitsubishi Material, Type AM11DG-ST01) 315 MHz Modular approval not available. Range and gain significantly reduced because of antenna size vs. the wavelength. Small chip antennas at this frequency may be suited for spaceconstrained applications. Check with supplier for matching circuit and board design guidelines. Supplier can make recommendations or do testing to optimize individual PCB design. 868.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.6 Positioning of the whip antenna Positioning and choice of receiver and transmitter antennas are the most important factors in determining system transmission range. For good receiver performance, great care must be taken about the space immediately around the antenna since this has a strong influence on screening and detuning the antenna. The antenna should be drawn out as far as possible and must never be cut off.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.7 Recommendations for laying a whip antenna PCB with GND PCB without GND Antenna too close to GND area Antenna end led back to foot point Antenna too close to GND area © 2013 EnOcean | www.enocean.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.8 Layout recommendations for foot pattern The length of lines connected to I/Os should not exceed 5 cm. It is recommended to have a complete GND layer in the application PCB, at least in the area below the module and directly connected components (e.g. mid-layer of your application PCB). Due to unisolated test points there are live signals accessible on the bottom side of the module.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Top layer © 2013 EnOcean | www.enocean.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Solder resist top layer © 2013 EnOcean | www.enocean.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U Solder paste top layer The data above is also available as EAGLE library. In order to ensure good solder quality a solder mask thickness of 150 µm is recommended. In case a 120 µm solder mask is used, it is recommended to enlarge the solder print. The pads on the solder print should then be 0.1 mm larger than the pad dimensions of the module as specified in chapter 2.3. (not relative to the above drawing).
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.9 Soldering information STM 300 has to be soldered according to IPC/JEDEC J-STD-020C standard. STM 300 shall be handled according to Moisture Sensitivity Level MSL4 which means a floor time of 72 h. STM 300 may be soldered only once, since one time is already consumed at production of the module itself. Once the dry pack bag is opened, the desired quantity of units should be removed and the bag resealed within two hours.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.10 Tape & Reel specification Tape running direction © 2013 EnOcean | www.enocean.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 4.11 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 1.34 STM 300 / STM 300C / STM 300U 5 AGENCY CERTIFICATIONS The modules have been tested to fulfil the approval requirements for CE (STM 300) and FCC/IC (STM 300C / STM 300U) 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 1.34 STM 300 / STM 300C / STM 300U 5.2 FCC (United States) Certification STM 300C / STM 300U 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 energy, and may be powered by a battery.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U STM 300C TCM 320C FCC ID:SZV-STM300C FCC ID:SZV-TCM320C IC:5713A-STM300C IC:5713A-TCM320C FCC FCC FCC FCC FCC IC:5713A-PTM210U IC:5713A-STM300U IC:5713A-STM300U IC:5713A-STM300U IC:5713A-TCM320U STM 300U: (902.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U The user manual for the end product must also contain the text given above. Changes or modifications not expressly approved by EnOcean could void the user's authority to operate the equipment. The module must be used with only the following approved antenna(s). Part Number N.A. N.A. Type Wire/Monopole Helical (for STM300U only) Gain 1.0 dBi 1.0 dBi The OEM must ensure that timing requirements according to 47 CFR 15.231(a-c) are met.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U STM 300C: Contains IC: 5713A-STM300C Contient le module d'émission IC: 5713A-STM300C STM 300U: Contains IC: 5713A-STM300U Contient le module d'émission IC: 5713A-STM300U L'OEM doit signer l'accord OEM limitée Approbation modulaire avec EnOcean 5.4 FCC Regulatory Statements This device complies with part 15 of the FCC rules.
USER MANUAL 1.34 STM 300 / STM 300C / STM 300U 5.5 Industry Canada Regulatory Statements This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence.
