User Manual
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| Document Description | User Manual |
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| Date Submitted | 2010-09-27 00:00:00 |
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USER MANUAL V0.6 Scavenger Transmitter Module STM 31x / STM 31xC September 7, 2010 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.com Subject to modifications STM 31x / STM 31xC User Manual V0.6 September 7, 2010 3:58 PM Page 1/28 USER MANUAL V0.6 STM 31X / STM 31XC REVISION HISTORY The following major modifications and improvements have been made to the first version of this document: No 0.5 0.6 Major Changes Initial version New drawings added, Agency approvals added 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 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. By agreement we will take packing material back if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or that we are not obliged to accept, we shall have to invoice you for any costs incurred. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 2/28 USER MANUAL V0.6 STM 31X / STM 31XC TABLE OF CONTENT 1.1 1.2 1.3 1.4 1.5 GENERAL DESCRIPTION................................................................................. 4 Basic functionality ......................................................................................... 4 Technical data .............................................................................................. 5 Physical dimensions....................................................................................... 5 Environmental conditions ............................................................................... 7 Ordering Information ..................................................................................... 7 FUNCTIONAL DESCRIPTION............................................................................ 8 2.1 Simplified firmware flow chart and block diagram .............................................. 8 2.2 Pin out ......................................................................................................... 9 2.3 Pin description and operational characteristics ................................................ 10 2.3.1 Interface supply voltage........................................................................... 11 2.3.2 Analog and digital inputs .......................................................................... 12 2.4 Absolute maximum ratings (non operating) .................................................... 12 2.5 Maximum ratings (operating)........................................................................ 12 2.6 Power management and voltage regulators .................................................... 13 2.7 Configuration .............................................................................................. 13 2.7.1 Configuration via pins .............................................................................. 13 2.7.2 Configuration via serial interface ............................................................... 15 2.8 Radio telegram ........................................................................................... 16 2.8.1 Normal operation .................................................................................... 16 2.8.2 Teach-in telegram ................................................................................... 17 2.9 Transmit timing .......................................................................................... 17 2.10 Charging circuitry ................................................................................... 18 2.11 Energy consumption ............................................................................... 18 APPLICATIONS INFORMATION ...................................................................... 20 3.1 Using the WAKE pins ................................................................................... 20 3.2 Antenna options.......................................................................................... 22 3.2.1 Whip antenna (STM 310, STM 310C, STM 312, STM 312C) ........................... 22 3.2.2 Helical antenna (STM 311, STM 311C) ....................................................... 23 3.3 Transmission range ..................................................................................... 24 AGENCY CERTIFICATIONS ............................................................................ 25 4.1 CE Approval................................................................................................ 25 4.2 FCC (United States) certification ................................................................... 26 4.3 IC (Industry Canada) certification.................................................................. 28 © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 3/28 USER MANUAL V0.6 STM 31X / STM 31XC GENERAL DESCRIPTION 1.1 Basic functionality The extremely power saving RF transmitter module STM 31x of EnOcean enables the realization of a wide range of wireless and maintenance free sensors such as temperature sensors, humidity sensors, or room operating panels. Power supply is provided by a small solar cell, an external energy harvester, or an external 3V battery. An energy storage is installed to bridge periods with no supply from the energy harvester. The module provides a user configurable cyclic wake up. After wake up the external sensors are supplied and after a configurable delay (default 2ms) the internal microcontroller reads the status of the connected sensors. A radio telegram will be transmitted in case of a change of any digital input value compared to the last sending or in case of a significant change of measured analogue values. 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 to the cyclic wake-up, a wake up can be triggered externally using a wake input or the internal LRN button. Features with built-in firmware Pre-installed solar cell (except STM 312/STM 312C) On-board energy storage and charging circuit On-board LRN button On-board TX indicator LED 20 pin connector for external sensors 3 A/D converter inputs 3 digital inputs Configurable wake-up and transmission cycle Wake-up via Wake pins or LRN button Product variants STM 310/310C: Variant including solar cell and whip antenna STM 311/311C: Variant including solar cell and helical antenna STM 312/312C: Variant including whip antenna but no pre-installed solar cell Features accessible via API Using the Dolphin API library it is possible to write custom firmware for the module. The API provides: Integrated 16 MHz 8051 CPU with 32 KB FLASH and 2 kB SRAM Various power down and sleep modes down to typ. 0.2 µA current consumption Up to 13 configurable I/Os 10 bit ADC, 8 bit DAC © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 4/28 USER MANUAL V0.6 STM 31X / STM 31XC 1.2 Technical data Antenna Frequency Radio Standard Data rate/Modulation type Conducted Output Power Power Supply @ VDD Initial operation time in darkness @ 25°C Operation start up time with empty energy store Input Channels Radio Regulations 1.3 whip or helical antenna installed 315.0 MHz (STM 31xC)/868.3 MHz (STM 31x) EnOcean 868 MHz/315 MHz 125 kbps/ASK typ. 2 dBm Pre-installed solar cell (except STM312 / STM312C) Illumination 50-100000 lux 2.1 V–5.0 V, 2.6 V needed for start-up typ. 4 days, energy storage fully charged, wake-up every 100 s, transmission of telegram every 1000 s on average1 typ. 2.5 min @ 400 lux / 25°C incandescent or fluorescent light 3x digital input, 2x WAKE input , 3x analog input Resolution: 3x 8 bit or 1x 10 bit, 1x 8 bit, 1x 6 bit R&TTE EN 300 220 (STM 31x) FCC CFR-47 Part 15 (STM 31xC) Physical dimensions PCB dimensions Module height Weight 43±0.2 x 16±0.3 x 1±0.1 mm 9 mm 3.3g (STM 312) – 6.2g (STM 311C), depending on variant Full performance of the PAS614L energy storage is achieved after a few days of operation at good illumination level. Performance degrades over life time, especially if energy storage is exposed to higher temperatures. Each 10K drop in temperature doubles the expected life span. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 5/28 USER MANUAL V0.6 STM 31X / STM 31XC © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 6/28 USER MANUAL V0.6 STM 31X / STM 31XC 1.4 Environmental conditions Operating temperature -20 °C … +60 °C Storage temperature Humidity 1.5 -20 °C … +60 °C 0% … 93% r.h., non-condensing Ordering Information Type STM 310 STM 311 STM 312 STM 310C STM 311C STM 312C Ordering Code S3001-D310 S3001-D311 S3001-D312 S3031-D310 S3031-D311 S3031-D312 © 2010 EnOcean | www.enocean.com Frequency 868.3 MHz 868.3 MHz 868.3 MHz 315.0 MHz 315.0 MHz 315.0 MHz STM 31x / STM 31xC User Manual V0.6 | Page 7/28 USER MANUAL V0.6 STM 31X / STM 31XC FUNCTIONAL DESCRIPTION 2.1 Simplified firmware flow chart and block diagram © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 8/28 USER MANUAL V0.6 STM 31X / STM 31XC Whip or helical antenna VCHAR VDD BALUN 16MHz Oscillator DOLPHIN EO3000I UVDDext WAKE0 LRN Power management RF Transmitter Transmit Indicator 868.3 MHz (STM31x) 315.0 MHz (STM31xC) LED Micro Controller Spontaneous wake-up DI_0 DI_1 DI_2 LRN button CW_1 CW_0 Cyclic Wake-up (every 100th, every 10th, every cyclic wake-up or SW defined) RESET AD_0 AD_1 AD_2 A/D Energy Storage Solar Cell VGC 2.2 SWPWR Presence Signal (every 1s ,10s , 100s, or SW defined) GND CP_0 CP_1 Pin out Energy Store LED LR N The figure above shows the pin out of the STM 31x hardware. The pins are named according to the naming of the EO3000I chip to simplify usage of the DOLPHIN API. The table in section 2.3 shows the translation of hardware pins to a naming that fits the functionality of the built-in firmware. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 9/28 USER MANUAL V0.6 STM 31X / STM 31XC 2.3 Pin description and operational characteristics STM 31x H ardw are Sym bol GND VDD STM 31x Firm w are Sym bol GND VDD VCHAR VCHAR VGC VGC SWPWR SWPWR (= switched DVDD) Function C haracteristics Ground connection Supply voltage 2.1 V – 5.0 V; Start-up voltage: 2.6 V Maximum ripple: see 2.6 Connection of external 3 V battery possible Charging input Input for external energy harvester (for use in STM 312). See 2.10. Voltage Gold Cap Connection of additional external energy storage or battery possible. See 2.10. DVDD supply volt- 1.8 V. Output current: max. 5 mA. age regulator out- Supply for external circuitry, available put switched via while not in deep sleep mode. SWPWR is transistor conswitched on 2ms (default) before sampling trolled by EO3000I of inputs and is switched off afterwards. WXIDIO pin. The delay time can be configured, see 2.7.2 (needed for stabilization of sensors) Ultra low power Not for supply of external circuitry! supply voltage For use with WAKE pins only, see section regulator output 3.1. Limited to max. 1 µA output current by internal 1.8 MΩ resistor! UVDDext (=UVDD with 1.8MΩ in series) UVDD IOVDD (not available at pin connector) RESET IOVDD Digital interface supply voltage Internal connection to EO3000I DVDD (typ. 1.8 V) See 2.3.1. RESET PROG_EN PROG_EN Reset input Programming I/F Programming I/F ADIO0 AD_0 Analog input ADIO1 AD_1 Analog input ADIO2 AD_2 Analog input ADIO3 DI_0 Digital input ADIO4 DI_1 Digital input Active high reset (1.8 V) Fixed internal 10 kΩ pull-down. HIGH: programming mode active LOW: operating mode Digital input, fixed internal 10 kΩ pulldown. Input read ~2 ms after wake-up. Resolution 8 bit. See also 2.7.2. Input read ~2 ms after wake-up. Resolution 8 bit (default) or 10 bit. See 2.7.2. Input read ~2 ms after wake-up. Resolution 8 bit (default) or 6 bit. See 2.7.2. Input read ~2 ms after wake-up. See 2.7.2. Internal pull-up Input read ~2 ms after wake-up. See 2.7.2. Internal pull-up © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 10/28 USER MANUAL V0.6 STM 31X / STM 31XC ADIO6 DI_2 Digital input ADIO7 LED SCSEDIO0 CW_1 Transmission indicator LED Programming I/F Encoding input for wake-up cycle SCLKDIO1 CW_0 Programming I/F Encoding input for wake-up cycle WSDADIO2 CP_1 Programming I/F Encoding input for retransmission RSDADIO3 CP_0 Programming I/F Encoding input for retransmission WAKE0 WAKE0 Programming I/F Wake input WAKE1 LRN LRN input Input read ~2 ms after wake-up. See 2.7.2. Internal pull-up Flashes during radio transmission. Active LOW. Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Change of logic state leads to wake-up and transmission of a telegram. Must be connected to UVDDext or GND! At time of delivery WAKE0 is connected to UVDDext via a jumper at the connector. See also 3.1. Change of logic state to LOW leads to wake-up and transmission of teach-in telegram. Internal pull-up to UVDD. See also 2.7.2, 2.8.2, and 3.1. 2.3.1 Interface supply voltage The IOVDD pin of EO3000I is internally connected to DVDD. For digital communication with other circuitry therefore a voltage of 1.8 V has to be used. While the module is in deep sleep mode the microcontroller with all its peripherals is switched off and DVDD, IOVDD, and SWPWR are not supplied. If DVDD=0 V and IOVDD is not supplied (e.g. while in sleep mode), do not apply voltage to ADIO0 to ADIO7 and the pins of the serial interface (SCSEDIO0, SCLKDIO1, WSDADIO2, RSDADIO3). This may lead to unpredictable malfunction of the device. For I/O pins configured as analog pins the IOVDD voltage level is not relevant! See also 2.3.2. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 11/28 USER MANUAL V0.6 STM 31X / STM 31XC 2.3.2 Analog and digital inputs Parameter Analog Input Measurement range Conditions / Notes Min Single ended Typ 0.05 Input coupling Measurement bandwidth Input resistance RVDD0.05 DC 100 Single ended against RGND @ 1 kHz Input capacitance Single ended against RGND @ 1 kHz Effective measurement resolution Configurable, see 2.7.2 Related to the reference Relative measurement accuracy voltage within specified input range Digital Input Mode 10 2.4 pF 10 0.6 bit 132 1/3 IOVDD 200 kΩ Parameter Supply voltage at VDD Voltage gold cap Supply voltage from external energy harvester Ground connection Voltage at every analog input pin Voltage at RESET, WAKE0/1, and every digital input Min -0.5 1.5 -0.5 -0.5 Max 5.5 3.3 3.6 Units Parameter Min Supply voltage at VDD and VDDLIM 2.1 Voltage gold cap 1.5 Supply voltage from external energy harvester Supply current from external energy harvester Continuous Short term (<10 min) Ground connection Voltage at every analog input pin Voltage at RESET, WAKE0/1, and every digital input Max 5.0 3.3 Units Maximum ratings (operating) Symbol VDD VGC VCHAR ICHAR GND VINA VIND 10 Absolute maximum ratings (non operating) Symbol VDD VGC VCHAR GND VINA VIND 2.5 90 Input LOW voltage @IOVDD=1.7 … 1.9 V Units kHz MΩ 2/3 IOVDD Input HIGH voltage Pull up resistor Max © 2010 EnOcean | www.enocean.com 50 2.0 3.6 µA mA STM 31x / STM 31xC User Manual V0.6 | Page 12/28 USER MANUAL V0.6 STM 31X / STM 31XC 2.6 Power management and voltage regulators Symbol Parameter Conditions / Notes Voltage Regulators Ripple on VDD, where VDDR Min(VDD) > VON UVDD Ultra Low Power supply RVDD RF supply Internal signal only DVDD Digital supply Internal signal only Threshold Detector VON Turn on threshold Automatic shutdown if VOFF Turn off threshold VDD drops below VOFF Min Typ Max Units 50 mVpp 1.7 1.7 1.8 1.8 1.8 1.9 1.9 2.3 1.85 2.45 1.9 2.6 2.1 Threshold detector STM 31x provides an internal ultra low power ON/OFF threshold detector. If VDD > VON, it turns on the ultra low power regulator (UVDD), the watchdog timer and the WAKE# pins circuitry. If VDD ≤ VOFF it initiates the automatic shut down of STM 31x. For details of this mechanism please refer to the Dolphin Core Description documentation. 2.7 Configuration 2.7.1 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. Wake-up cycle time CW_0 CW_1 Wake-up cycle time NC GND 1 s ±20% GND NC 10 s ±20% NC NC 100 s ±20% GND GND No cyclic wake-up © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 13/28 USER MANUAL V0.6 STM 31X / STM 31XC Redundant retransmission Via CP_0 and CP_1 an internal counter is set which is decreased at every wake-up signal. Once the counter reaches zero the redundant retransmission signal is sent. CP_0 CP_1 GND NC Number of wake-ups that trigger a redundant retransmission Every timer wake-up signal NC NC Every 7th - 14th timer wake-up signal, affected at random NC GND Every 70th - 140th timer wake-up signal, affected at random GND GND No redundant retransmission A radio telegram is always transmitted after wake-up via WAKE pins! After transmission the counter is reset to a random value within the specified interval. According to FCC 15.231a) a redundant retransmission at every timer wake-up to determine the system integrity is only allowed in safety and security applications! In this case the total transmission time must not exceed two seconds per hour, which means that a combination with a 1 s wake-up cycle time is not allowed! If applied in other (non-safety, non-security) applications a minimum of 10 s between periodic transmissions is required. In addition the device has to comply with the lower field strength limits of 15.231e). The limited modular approval of STM 31xC is not valid in this case. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 14/28 USER MANUAL V0.6 STM 31X / STM 31XC 2.7.2 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 2.7.1 Configuration via serial interface Value can be set from 1 s to 65534 s Redundant Retransmission cycle See section 2.7.1 Min…Max values for random interval If Min=Max -> random switched off Threshold values for analog inputs No The default values are: 5 LSB at AD_1 input, 6 LSB at AD_0 and 14 LSB at AD_2. The threshold value can be set between 0 and full scale for every input individually. Resolution of the analog inputs No Default: AD_0: 8 bit, AD_1: 8 bit, AD_2: 8 bit Option: AD_0: 10 bit, AD_1: 6 bit, AD_2: 8 bit Input mask No A digital input mask for ignoring changes on digital input pins. At default all input bits are checked. Delay time between SWPWR on and sampling moment No Value can be set from 0 ms to 508 ms in steps of 2 ms. Default delay time is 2 ms. Source of AD_2 No Select if AD_2 contains measurement value of external ADIO2 pin or from internal VDD/4 Edge of wake pin change causing a telegram transmission No Every change of a wake pin triggers a wake-up. For both wake pins it can be configured individually if a telegram shall be sent on rising, falling or both edges. Manufacturer ID and EEP No (EnOcean Equipment Profile) Information about manufacturer and type of device. This feature is needed for “automatic” interoperability of sensors and actuators or bus systems. Unique manufacturer IDs are distributed by the EnOcean Alliance. Wake up cycle (transmission of telegram if threshold value exceeded) (for stabilization of external sensor measurement values) The interface is shown in the figure below: GND USB Dolphin Studio, or EOP © 2010 EnOcean | www.enocean.com USB <= > SPI interface SPI VDD Reset PROG_EN ADIO7 SCSEDIO0 SCLKDIO1 WSDADIO2 RSDADIO3 STM 31x STM 31x / STM 31xC User Manual V0.6 | Page 15/28 USER MANUAL V0.6 STM 31X / STM 31XC EnOcean provides EOPx (EnOcean Programmer, a command line program) and Dolphin Studio (Windows application for chip configuration, programming, and testing) and the USB/SPI programmer device as part of the EDK 300 developer´s kit. 2.8 Radio telegram 2.8.1 Normal operation Telegram content (seen at serial interface of RCM 130/TCM 3x0 or at DOLPHIN API): ORG = 0x07 (Telegram type “4BS”) Data_Byte1..3 3x8bit mode: DATA_BYTE3 DATA_BYTE2 DATA_BYTE1 = Value of AD_2 analog input = Value of AD_1 analog input = Value of AD_0 analog input 1x8bit, 1x6it, 1x10bit mode: DATA_BYTE3 = Value of AD_2 DATA_BYTE2 = Upper 2 bits of AD_0 and value of AD_1 DATA_BYTE1 = Lower 8 bits Value of AD_0 analog input DATA_BYTE3 AD_2 DATA_BYTE2 DATA_BYTE1 AD_1 AD_0 DATA_BYTE0 = Digital sensor inputs as follows: Bit 7 Bit 0 Reserved, set to 0 DI_3=1 DI_2 DI_1 DI_0 ID_BYTE3 ID_BYTE2 ID_BYTE1 ID_BYTE0 module module module module identifier identifier identifier identifier (Byte3) (Byte2) (Byte1) (Byte0) The voltages measured at the analog inputs can be calculated from these values as follows: U=(Value of AD_x)/(2n)x1.8 V n=resolution of channel in bit Please note the limitations in the measurement range of the A/D converter as shown in 2.3.2. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 16/28 USER MANUAL V0.6 STM 31X / STM 31XC 2.8.2 Teach-in telegram In case of a wake-up via WAKE1 pin (LRN input) the module transmits a teach-in telegram. If the manufacturer code is not set, the module transmits a normal telegram according to 2.8.1 with the difference that DI_3=0. If a manufacturer code is set, this teach-in telegram contains special information as described below. With this special teach-in telegram it is possible to identify the manufacturer of a device and the function and type of a device. There is a list available from the EnOcean Alliance describing the functionalities of the respective products. ORG = 0x07 (Telegram type “4BS”) DATA_BYTE0..3 see below LRN Type = 1 LRN = 0 DI0..DI2: current status of digital inputs Profile, Type, Manufacturer-ID defined by manufacturer RE0..2: set to 0 ID_BYTE3 ID_BYTE2 ID_BYTE1 ID_BYTE0 ORG module module module module Data_Byte3 Function 6 Bit 2.9 identifier identifier identifier identifier Data_Byte2 Type Manufacturer7 Bit ID 11 Bit (Byte3) (Byte2) (Byte1) (Byte0) Data_Byte1 Data_Byte0 ID LRN Type RE2 RE1 RE0 LRN DI2 DI1 DI0 1Bit 1Bit 1Bit 1Bit 1Bit 1Bit 1Bit 1Bit Transmit timing The setup of the transmission timing allows avoiding possible of other EnOcean transmitters as well as disturbances from transmission cycle, 3 identical subtelegrams are transmitted sion of a subtelegram lasts approximately 1.2 ms. The delay sion bursts is affected at random. collisions with data packages the environment. With each within 40 ms. The transmisbetween the three transmis- If a new wake-up occurs before all sub-telegrams have been sent, the series of transmissions is stopped and a new series of telegrams with new valid measurement values is transmitted. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 17/28 USER MANUAL V0.6 STM 31X / STM 31XC 2.10 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. An external 3 V battery can be connected at VDD (STM 312 only) or at VGC. 2.11 Energy consumption 100 10 Current[m A ] 0.1 0.01 0.001 0.0001 0.00001 10 20 30 40 50 60 70 80 90 100 Tim e [m s] Current Consumption of STM 31x Charge needed for one measurement and transmit cycle: ~130 µC Charge needed for one measurement cycle without transmit: ~30 µC (current for external sensor circuits not included) 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. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 18/28 USER MANUAL V0.6 STM 31X / STM 31XC From these values the following performance parameters have been calculated: Wake cycle [s] 10 10 10 100 100 100 Operation Time in darkness [h] Transmit when storage interval fully charged 10 100 10 100 10 100 0.5 1.7 2.1 5.1 16 20 43 98 112 Required reload time [h] at 200 lux within 24 h for continuous operation Current Illuminain µA 24 h operation tion level required after 6 h in lux for for concontinuous tinuous illumination at x lux operation operation storage too sm all storage too sm all storage too sm all storage too sm all 21 16.8 7.8 3.6 storage too sm all storage too sm all storage too sm all storage too sm all 700 560 260 120 100 5220 1620 1250 540 175 140 65 30 25 130.5 40.5 31.3 13.5 4.4 3.5 1.6 0.8 0.6 Assumptions: Internal storage PAS614L-VL3 with 0.25 F, Umax=3.2 V, Umin=2.2 V, T=25 °C Consumption: Transmit cycle 100 µC, measurement cycle 30 µC Pre-installed solar cell ECS 300, operating values 3 V and 5 µA @ 200 lux fluorescent light Current proportional to illumination level (not true at very low levels!) These values are calculated values, the accuracy is about +/-20%! © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 19/28 USER MANUAL V0.6 STM 31X / STM 31XC APPLICATIONS INFORMATION 3.1 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 31x is in “Deep Sleep Mode” and the logic levels of WAKE0 and / or WAKE1 is changed, STM 31x starts up. As the there is no internal pull-up or pull-down at the WAKE0 pin, it has to be ensured by external circuitry, that the WAKE0 pin is at a defined logic level at any time. At time of delivery a jumper is connected between WAKE0 and UVDDext. WAKE1 provides an internal 1.8 MΩ pull-up. See figure below. WAKE1 UVDD WAKE0 EO3000I 1M8 WAKE1 LRN Button GND 1M8 UVDDext WAKE0 STM 31x Jumper installed at time of delivery 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 of approximately 1 µA is flowing. It is possible to connect an additional external button in parallel between WAKE1 and GND if a different position of the button in the device is required. WAKE0 is connected to UVDDext via a jumper at time of delivery. If the module is mounted onto a host PCB the jumper has to be removed. The circuitry on the host PCB then has to ensure that WAKE0 is always in a defined position. There are two ways to use WAKE0: Connect WAKE0 to UVDDext and connect an external button between WAKE0 and GND. As long as the button is pressed a current of 1 µA will flow. Connect a 3 terminal switch and switch WAKE0 to either GND or UVDDext. In this case there is no continuous flow of current in either position of the switch. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 20/28 USER MANUAL V0.6 STM 31X / STM 31XC If more digital inputs with WAKE functionality are needed in an application, WAKE0 can be combined with some of the digital inputs as shown below: © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 21/28 USER MANUAL V0.6 STM 31X / STM 31XC 3.2 Antenna options 3.2.1 Whip antenna (STM 310, STM 310C, STM 312, STM 312C) Specification of the whip antenna; L=150 mm @ 315 MHz, L=86 mm @ 868 MHz Antenna layout recommendation: STM 31x without host PCB STM 31x with host PCB 868MHz: > 1cm 315MHz: > 2cm 868MHz: > 2cm 315MHz: > 4cm Glass, wood, concrete, metal Host PCB GND plane 868MHz: > 2cm 315MHz: > 4cm © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 22/28 USER MANUAL V0.6 STM 31X / STM 31XC 3.2.2 Helical antenna (STM 311, STM 311C) 868 MHz 315 MHz Antenna recommendation: STM 31x without host PCB STM 31x with host PCB 868MHz: > 5mm 315MHz: > 10mm Plastic 868MHz: > 2mm 315MHz: > 4mm © 2010 EnOcean | www.enocean.com Host PCB GND plane Glass, wood, concrete, metal STM 31x / STM 31xC User Manual V0.6 | Page 23/28 USER MANUAL V0.6 STM 31X / STM 31XC 3.3 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. Since the expected transmission range strongly depends on this system conditions, range tests should categorically be performed before notification of a particular range that will be attainable by a certain application. The following figures for expected transmission range are considered by using a PTM, a STM or a TCM radio transmitter device and the TCM radio receiver device with preinstalled whip antenna and may be used as a rough guide only: Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls Plasterboard walls / dry wood: Typically 30 m range, through max. 5 walls Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls Ferroconcrete walls / ceilings: Typically 10 m range, through max. 1 ceiling Fire-safety walls, elevator shafts, staircases and supply areas should be considered as screening. The angle at which the transmitted signal hits the wall is very important. The effective wall thickness – and with it the signal attenuation – varies according to this angle. Signals should be transmitted as directly as possible through the wall. Wall niches should be avoided. Other factors restricting transmission range: Switch mounted on metal surfaces (up to 30% loss of transmission range) Hollow lightweight walls filled with insulating wool on metal foil False ceilings with panels of metal or carbon fiber Lead glass or glass with metal coating, steel furniture The distance between EnOcean receivers and other transmitting devices such as computers, audio and video equipment that also emit high-frequency signals should be at least 0.5 m A summarized application note to determine the transmission range within buildings is available as download from www.enocean.com. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 24/28 USER MANUAL V0.6 STM 31X / STM 31XC AGENCY CERTIFICATIONS The modules have been tested to fulfil the approval requirements for CE (STM 31x) and FCC/IC (STM 31xC) 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! 4.1 CE Approval The STM 31x module bears the EC conformity marking CE and conforms to the R&TTE EUdirective on radio equipment. The assembly conforms to the European and national requirements of electromagnetic compatibility. The conformity has been proven and the according documentation has been deposited at EnOcean. The modules can be operated without notification and free of charge in the area of the European Union and in Switzerland. EnOcean RF modules must not be modified or used outside their specification limits. EnOcean RF modules may only be used to transfer digital or digitized data. Analog speech and/or music are not permitted. EnOcean RF modules must not be used with gain antennas, since this may result in allowed ERP or spurious emission levels being exceeded. The final product incorporating EnOcean RF modules must itself meet the essential requirement of the R&TTE Directive and a CE marking must be affixed on the final product and on the sales packaging each. Operating instructions containing a Declaration of Conformity has to be attached. If the STM 31x transmitter is used according to the regulations of the 868.3 MHz band, a so-called “Duty Cycle” of 1% per hour must not be exceeded. Permanent transmitters such as radio earphones are not allowed. The module must be used with only the following approved antenna(s). Model STM 310 STM 312 STM 311 © 2010 EnOcean | www.enocean.com Type Pre-installed Wire/Monopole Pre-installed helical antenna STM 31x / STM 31xC User Manual V0.6 | Page 25/28 USER MANUAL V0.6 STM 31X / STM 31XC 4.2 FCC (United States) certification STM 31xC 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. The module transmits short radio packets comprised of control signals, (in some cases the control signal may be accompanied with data) such as those used with alarm systems, door openers, remote switches, and the like. The module does not support continuous streaming of voice, video, or any other forms of streaming data; it sends only short packets containing control signals and possibly data and is typically powered by a solar cell in ambient light. The module is designed to comply with, has been tested according to 15.231(a-c), and has been found to comply with each requirement. Thus, a finished device containing the STM 31xC radio module can be operated in the United States without additional Part 15 FCC approval (approval(s) for unintentional radiators may be required for the OEM’s finished product), under EnOcean’s FCC ID number. This greatly simplifies and shortens the design cycle and development costs for OEM integrators. The module can be triggered manually or automatically, which cases are described below. Manual Activation The radio module can be configured to transmit a short packetized control signal if triggered manually. The module can be triggered, by pressing a switch, for example. The packet contains one (or more) control signals that is(are) intended to control something at the receiving end. The packet may also contain data. Depending on how much energy is available from the energy source, subsequent manual triggers can initiate the transmission of additional control signals. This may be necessary if prior packet(s) was (were) lost to fading or interference. Subsequent triggers can also be initiated as a precaution if any doubt exists that the first packet didn’t arrive at the receiver. Each packet that is transmitted, regardless of whether it was the first one or a subsequent one, will only be transmitted if enough energy is available from the energy source. Automatic Activation The radio module also can be configured to transmit a short packetized control signal if triggered automatically, by a relevant change of its inputs, for example. Again, the packet contains a control signal that is intended to control something at the receiving end and may also contain data. As above, it is possible for the packet to get lost and never reach the receiver. However, if enough energy is available from the energy source, and the module has been configured to do so, then another packet or packets containing the control signal may be transmitted at a later, unpredictable time. © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 26/28 USER MANUAL V0.6 STM 31X / STM 31XC 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. The end-user must not be provided with instructions to remove, adjust or install the module. The Original Equipment Manufacturer (OEM) must ensure that FCC labeling requirements are met. This includes a clearly visible label on the outside of the final product. Attaching a label to a removable portion of the final product, such as a battery cover, is not permitted. The label must include the following text: STM 310C, STM 312C: Contains FCC ID: SZV-STM310C The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (i.) this device may not cause harmful interference and (ii.) this device must accept any interference received, including interference that may cause undesired operation. STM 311C: Contains FCC ID: SZV-STM311C The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (i.) this device may not cause harmful interference and (ii.) this device must accept any interference received, including interference that may cause undesired operation. When the device is so small or for such use that it is not practicable to place the statement above on it, the information required by this paragraph shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. However, the FCC identifier or the unique identifier, as appropriate, must be displayed on the device. 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 au- thority to operate the equipment. The OEM must ensure that timing requirements according to 47 CFR 15.231(a-c) are met. The OEM must sign the OEM Limited Modular Approval Agreement with EnOcean The module must be used with only the following approved antenna(s). © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 27/28 USER MANUAL V0.6 STM 31X / STM 31XC Model STM 310C STM 312C STM 311C 4.3 Type Pre-installed Wire/Monopole Gain 1.0 dBi Pre-installed helical antenna -9 dBi IC (Industry Canada) certification In order to use EnOcean’s IC number, the OEM must ensure that the following conditions are met: Labeling requirements for Industry Canada are similar to those required by the FCC. The Original Equipment Manufacturer (OEM) must ensure that IC labeling requirements are met. A clearly visible label on the outside of a non-removable part of the final product must include the following text: STM 310C, STM 312C: Contains IC: 5713A-STM310C STM 311C Contains IC: 5713A-STM311C The OEM must sign the OEM Limited Modular Approval Agreement with EnOcean © 2010 EnOcean | www.enocean.com STM 31x / STM 31xC User Manual V0.6 | Page 28/28 USER MANUAL V0.60 Scavenger Transmitter Module STM 330 / STM 330C September 7, 2010 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.com Subject to modifications STM 330 / STM 330C User Manual V0.60 September 7, 2010 4:00 PM Page 1/27 USER MANUAL V0.60 STM 330 / STM 330C REVISION HISTORY The following major modifications and improvements have been made to the first version of this document: No 0.55 0.60 Major Changes Initial version New drawings added; Agency certifications added 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 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. By agreement we will take packing material back if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or that we are not obliged to accept, we shall have to invoice you for any costs incurred. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 2/27 USER MANUAL V0.60 STM 330 / STM 330C TABLE OF CONTENT 1.1 1.2 1.3 1.4 1.5 GENERAL DESCRIPTION................................................................................. 4 Basic functionality ......................................................................................... 4 Technical data .............................................................................................. 5 Physical dimensions....................................................................................... 5 Environmental conditions ............................................................................... 7 Ordering Information ..................................................................................... 7 FUNCTIONAL DESCRIPTION............................................................................ 8 2.1 Simplified firmware flow chart and block diagram .............................................. 8 2.2 Pin out ......................................................................................................... 9 2.3 Pin description and operational characteristics ................................................ 10 2.3.1 Interface supply voltage........................................................................... 11 2.3.2 Analog and digital inputs .......................................................................... 12 2.3.3 Temperature sensor................................................................................. 12 2.4 Absolute maximum ratings (non operating) .................................................... 12 2.5 Maximum ratings (operating)........................................................................ 13 2.6 Power management and voltage regulators .................................................... 13 2.7 Configuration .............................................................................................. 14 2.7.1 Configuration via pins .............................................................................. 14 2.7.2 Configuration via serial interface ............................................................... 15 2.8 Radio telegram ........................................................................................... 17 2.8.1 Normal operation .................................................................................... 17 2.8.2 Teach-in telegram ................................................................................... 17 2.9 Transmit timing .......................................................................................... 17 2.10 Charging circuitry ................................................................................... 18 2.11 Energy consumption ............................................................................... 18 APPLICATIONS INFORMATION ...................................................................... 20 3.1 Using the WAKE pins ................................................................................... 20 3.2 Temperature sensor .................................................................................... 21 3.3 Set point control and occupancy button.......................................................... 21 3.4 Antenna ..................................................................................................... 22 3.4.1 Whip antenna ......................................................................................... 22 3.5 Transmission range ..................................................................................... 23 AGENCY CERTIFICATIONS ............................................................................ 24 4.1 CE Approval................................................................................................ 24 4.2 FCC (United States) certification ................................................................... 25 4.3 IC (Industry Canada) certification.................................................................. 27 © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 3/27 USER MANUAL V0.60 STM 330 / STM 330C GENERAL DESCRIPTION 1.1 Basic functionality The extremely power saving RF transmitter module STM 330 of EnOcean is optimized for realization of wireless and maintenance free temperature sensors, or room operating panels including set point dial and occupancy button with a minimum number of external components. The module provides an integrated calibrated temperature sensor. Power supply is provided by a small solar cell, an external energy harvester, or an external 3 V battery. An energy storage is installed to bridge periods with no supply from the energy harvester. The module provides a user configurable cyclic wake up. After wake up the internal microcontroller reads the status of the temperature sensor and optional set point dial. A radio telegram will be transmitted in case of a significant change of measured temperature or set point values or if the external occupancy button is pressed. 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 to the cyclic wake-up, a wake up can be triggered externally using the input for the occupancy button or the internal LRN button. The firmware can be configured to use different EEPs according to the availability set point dial and occupancy button. Features with built-in firmware Pre-installed solar cell On-board energy storage and charging circuit On-board LRN button On-board TX indicator LED Calibrated internal temperature sensor Input for external occupancy button and set point dial Configurable wake-up and transmission cycle Wake-up via Wake pins or LRN button Features accessible via API Using the Dolphin API library it is possible to write custom firmware for the module. The API provides: Integrated 16 MHz 8051 CPU with 32 KB FLASH and 2 kB SRAM Integrated temperature sensor Various power down and sleep modes down to typ. 0.2 µA current consumption Up to 13 configurable I/Os 10 bit ADC, 8 bit DAC © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 4/27 USER MANUAL V0.60 STM 330 / STM 330C 1.2 Technical data Antenna Frequency Radio Standard Pre-installed whip antenna 315.0 MHz (STM 330C)/868.3 MHz (STM 330) EnOcean 868 MHz/315 MHz Data rate/Modulation type Conducted Output Power Power Supply @ VDD 125 kbps/ASK typ. 2 dBm Pre-installed solar cell Illumination 50-100000 lux 2.1 V–5.0 V, 2.6 V needed for start-up Initial operation time in darkness @ typ. 4 days, energy storage fully charged, wake-up every 25°C 100 s, transmission of telegram every 1000 s on average1 Operation start up time with empty typ. 2.5 min @ 400 lux / 25°C energy store incandescent or fluorescent light Input Channels Internal: temperature sensor, LRN button External: occupancy button, set point dial Temperature sensor Measurement range 0-40°C, resolution 0.15K Acccuracy typ. ±0.5K between 15°C and 25°C typ. ±1K between 0°C and 40°C EnOcean Equipment Profiles configurable EEPs: 07-02-05 (default), 07-10-05, 07-10-03 Connector Radio Regulations 1.3 20 pin R&TTE EN 300 220 (STM 330) FCC CFR-47 Part 15 (STM 330C) Physical dimensions PCB dimensions Module height Weight 43±0.2 x 16±0.3 x 1±0.1 mm 9 mm 4.5g (STM 330), 4.7g (STM 330C) Full performance of the PAS614L energy storage is achieved after a few days of operation at good illumination level. Performance degrades over life time, especially if energy storage is exposed to higher temperatures. Each 10K drop in temperature doubles the expected life span. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 5/27 USER MANUAL V0.60 STM 330 / STM 330C © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 6/27 USER MANUAL V0.60 STM 330 / STM 330C 1.4 Environmental conditions Operating temperature -20 °C … +60 °C Storage temperature Humidity 1.5 -20 °C … +60 °C 0% … 93% r.h., non-condensing Ordering Information Type STM 330 STM 330C Ordering Code S3001-D330 S3031-D330 © 2010 EnOcean | www.enocean.com Frequency 868.3 MHz 315.0 MHz STM 330 / STM 330C User Manual V0.60 | Page 7/27 USER MANUAL V0.60 STM 330 / STM 330C FUNCTIONAL DESCRIPTION 2.1 Simplified firmware flow chart and block diagram © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 8/27 USER MANUAL V0.60 STM 330 / STM 330C VCHAR VDD Whip antenna BALUN 16MHz Oscillator DOLPHIN EO3000I UVDDext OCC LRN Power management RF Transmitter 868.3 MHz (STM330) 315.0 MHz (STM330C) Micro Controller Spontaneous wake-up Transmit Indicator LED LRN button CW_1 CW_0 Cyclic Wake-up (every 1s ,10s , 100s, or SW defined) (every 100th, every 10th, every cyclic wake-up or SW defined) RESET SET A/D Energy Storage Solar Cell VGC 2.2 SWPWR Presence Signal GND CP_0 CP_1 Pin out Energy Store LED LR N The figure above shows the pin out of the STM 330 hardware. The pins are named according to the naming of the EO3000I chip to simplify usage of the DOLPHIN API. The table in section 2.3 shows the translation of hardware pins to a naming that fits the functionality of the built-in firmware. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 9/27 USER MANUAL V0.60 STM 330 / STM 330C 2.3 Pin description and operational characteristics STM 330 H ardw are Sym bol GND VDD STM 330 Firm w are Sym bol GND VDD VCHAR VCHAR VGC VGC SWPWR SWPWR (= switched DVDD) Function C haracteristics Ground connection Supply voltage 2.1 V – 5.0 V; Start-up voltage: 2.6 V Maximum ripple: see 2.6 Connection of external 3 V battery possible Charging input Input for external energy harvester. See 2.10. Voltage Gold Cap Connection of additional external energy storage or battery possible. See 2.10. DVDD supply volt- 1.8 V. Output current: max. 5 mA. age regulator out- Supply for external circuitry, available put switched via while not in deep sleep mode. SWPWR is transistor conswitched on 0.25ms before sampling of trolled by EO3000I inputs and is switched off afterwards. WXIDIO pin. Ultra low power Not for supply of external circuitry! supply voltage For use with WAKE pins only, see section regulator output 3.1. Limited to max. 1 µA output current by internal 1.8 MΩ resistor! UVDDext (=UVDD with 1.8MΩ in series) UVDD IOVDD (not available at pin connector) RESET IOVDD Digital interface supply voltage Internal connection to EO3000I DVDD (typ. 1.8V) See 2.3.1 RESET PROG_EN PROG_EN Reset input Programming I/F Programming I/F ADIO0 SET Analog input Active high reset (1.8 V) Fixed internal 10 kΩ pull-down. HIGH: programming mode active LOW: operating mode Digital input, fixed internal 10 kΩ pulldown. For connection of an external set point dial. See 3.3 Internal pull-up Internal pull-up ADIO1 ADIO2 Not used Not used ADIO3 ADIO4 ADIO6 ADIO7 LED SCSEDIO0 CW_1 Not used Not used Not used Transmission indicator LED Programming I/F Encoding input for wake-up cycle Internal pull-up Internal pull-up Internal pull-up Flashes during radio transmission. Active LOW. Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Programming I/F © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 10/27 USER MANUAL V0.60 STM 330 / STM 330C SCLKDIO1 WSDADIO2 RSDADIO3 CW_0 Encoding input for wake-up cycle CP_1 Programming I/F Encoding input for retransmission CP_0 Programming I/F Encoding input for retransmission WAKE0 OCC Programming I/F Wake input WAKE1 LRN LRN input Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Configuration interface. Leave open or connect to GND. See 2.7.1. Internal pull-up Input for external occupancy button. Change of logic state leads to wake-up and transmission of a telegram if correct EEP selected. See 2.7.2. Must be connected to UVDDext or GND! At time of delivery WAKE0 is connected to UVDDext via a jumper at the connector. See also 3.1. Change of logic state to LOW leads to wake-up and transmission of teach-in telegram. Internal pull-up to UVDD. See also 2.8.2 and 3.1. 2.3.1 Interface supply voltage The IOVDD pin of EO3000I is internally connected to DVDD. For digital communication with other circuitry therefore a voltage of 1.8 V has to be used. While the module is in deep sleep mode the microcontroller with all its peripherals is switched off and DVDD, IOVDD, and SWPWR are not supplied. If DVDD=0 V and IOVDD is not supplied (e.g. while in sleep mode), do not apply voltage to ADIO0 to ADIO7 and the pins of the serial interface (SCSEDIO0, SCLKDIO1, WSDADIO2, RSDADIO3). This may lead to unpredictable malfunction of the device. For I/O pins configured as analog pins the IOVDD voltage level is not relevant! See also 2.3.2. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 11/27 USER MANUAL V0.60 STM 330 / STM 330C 2.3.2 Analog and digital inputs Parameter Analog Input Measurement range Input coupling Measurement bandwidth Input resistance Input capacitance Relative measurement accuracy Conditions / Notes Min Single ended Typ 0.05 Max RVDD0.05 DC 100 Single ended against RGND @ 1 kHz Single ended against RGND @ 1 kHz Related to the reference voltage within specified input range Units kHz MΩ 10 10 pF 0.6 Digital Input Mode 2/3 IOVDD Input HIGH voltage Input LOW voltage Pull up resistor @IOVDD=1.7 … 1.9 V 90 132 1/3 IOVDD 200 kΩ 2.3.3 Temperature sensor Parameter Measurement range Min 15-25°C 0-40 Accuracy 2.4 Conditions / Notes Typ Max 40 Units °C Max 5.5 3.3 3.6 Units 0.5 Absolute maximum ratings (non operating) Symbol VDD VGC VCHAR GND VINA VIND Parameter Supply voltage at VDD Voltage gold cap Supply voltage from external energy harvester Ground connection Voltage at every analog input pin Voltage at RESET, WAKE0/1, and every digital input © 2010 EnOcean | www.enocean.com Min -0.5 1.5 -0.5 -0.5 STM 330 / STM 330C User Manual V0.60 | Page 12/27 USER MANUAL V0.60 STM 330 / STM 330C 2.5 Maximum ratings (operating) Symbol VDD VGC VCHAR ICHAR GND VINA VIND 2.6 Parameter Min Supply voltage at VDD and VDDLIM 2.1 Voltage gold cap 1.5 Supply voltage from external energy harvester Supply current from external energy harvester Continuous Short term (<10 min) Ground connection Voltage at every analog input pin Voltage at RESET, WAKE0/1, and every digital input Max 5.0 3.3 50 2.0 3.6 Units µA mA Power management and voltage regulators Symbol Parameter Conditions / Notes Voltage Regulators Ripple on VDD, where VDDR Min(VDD) > VON UVDD Ultra Low Power supply RVDD RF supply Internal signal only DVDD Digital supply Internal signal only Threshold Detector VON Turn on threshold Automatic shutdown if VOFF Turn off threshold VDD drops below VOFF Min Typ Max Units 50 mVpp 1.7 1.7 1.8 1.8 1.8 1.9 1.9 2.3 1.85 2.45 1.9 2.6 2.1 Threshold detector STM 330 provides an internal ultra low power ON/OFF threshold detector. If VDD > VON, it turns on the ultra low power regulator (UVDD), the watchdog timer and the WAKE# pins circuitry. If VDD ≤ VOFF it initiates the automatic shut down of STM 330. For details of this mechanism please refer to the Dolphin Core Description documentation. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 13/27 USER MANUAL V0.60 STM 330 / STM 330C 2.7 Configuration 2.7.1 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. Wake-up cycle time CW_0 CW_1 Wake-up cycle time NC GND 1 s ±20% GND NC 10 s ±20% NC NC 100 s ±20% GND GND No cyclic wake-up Redundant retransmission Via CP_0 and CP_1 an internal counter is set which is decreased at every wake-up signal. Once the counter reaches zero the redundant retransmission signal is sent. CP_0 CP_1 GND NC Number of wake-ups that trigger a redundant retransmission Every timer wake-up signal NC NC Every 7th - 14th timer wake-up signal, affected at random NC GND Every 70th - 140th timer wake-up signal, affected at random GND GND No redundant retransmission A radio telegram is always transmitted after wake-up via WAKE pins! After transmission the counter is reset to a random value within the specified interval. According to FCC 15.231a) a redundant retransmission at every timer wake-up to determine the system integrity is only allowed in safety and security applications! In this case the total transmission time must not exceed two seconds per hour, which means that a combination with a 1 s wake-up cycle time is not allowed! If applied in other (non-safety, non-security) applications a minimum of 10 s between periodic transmissions is required. In addition the device has to comply with the lower field strength limits of 15.231e). The limited modular approval of STM 330C is not valid in this case. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 14/27 USER MANUAL V0.60 STM 330 / STM 330C 2.7.2 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 Configuration via serial interface Wake up cycle See section 2.7.1 Value can be set from 1 s to 65534 s Redundant Retransmission cycle See section 2.7.1 Min…Max values for random interval If Min=Max -> random switched off Threshold values for inputs No The default values are: Temperature measurement: ±0.5K Set point measurement: ±10 digits No Every change of a wake pin triggers a wake-up. For both wake pins it can be configured individually if a telegram shall be sent on rising, falling or both edges. Manufacturer ID and EEP No (EnOcean Equipment Profile) Information about manufacturer and type of device. This feature is needed for “automatic” interoperability of sensors and actuators or bus systems. Unique manufacturer IDs are distributed by the EnOcean Alliance. (transmission of telegram if threshold value exceeded) Edge of wake pin change causing a telegram transmission The interface is shown in the figure below: USB Dolphin Studio, or EOP USB <= > SPI interface SPI GND VDD Reset PROG_EN ADIO7 SCSEDIO0 SCLKDIO1 WSDADIO2 RSDADIO3 STM 330 EnOcean provides EOPx (EnOcean Programmer, a command line program) and Dolphin Studio (Windows application for chip configuration, programming, and testing) and the USB/SPI programmer device as part of the EDK 300 developer´s kit. The configuration page of DolphinStudio is shown in the figure below. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 15/27 USER MANUAL V0.60 STM 330 / STM 330C Please select STM33x and press “Read configuration” button before modifying the entries! © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 16/27 USER MANUAL V0.60 STM 330 / STM 330C 2.8 Radio telegram 2.8.1 Normal operation In normal operation STM 330 transmits telegram data according to the selected EEP (EnOcean Equipment Profile). For details please refer to the EnOcean Equipment Profiles 2.0 specification. http://www.enocean-alliance.org/fileadmin/redaktion/enocean_alliance/pdf/EnOcean_Equipment_Profiles_2.0.pdf 2.8.2 Teach-in telegram In case of a wake-up via WAKE1 pin (LRN input) the module transmits a teach-in telegram. If the manufacturer code is not set, the module transmits a normal telegram according to 2.8.1 with the difference that DI_3=0. If a manufacturer code is set, this teach-in telegram contains special information as described below. With this special teach-in telegram it is possible to identify the manufacturer of a device and the function and type of a device. The following EnOcean Equipment Profiles are supported by STM 330. They have to be selected according to the availability of external occupancy button and set point control by the method described in 2.7.2: 07-02-05 Temperature sensor 0-40°C (default) 07-10-03 Temperature sensor 0-40°C, set point control 07-10-05 Temperature sensor 0-40°C, set point, and occupancy control For details please refer to the EnOcean Equipment Profiles 2.0 specification. http://www.enocean-alliance.org/fileadmin/redaktion/enocean_alliance/pdf/EnOcean_Equipment_Profiles_2.0.pdf 2.9 Transmit timing The setup of the transmission timing allows avoiding possible of other EnOcean transmitters as well as disturbances from transmission cycle, 3 identical subtelegrams are transmitted sion of a subtelegram lasts approximately 1.2 ms. The delay sion bursts is affected at random. © 2010 EnOcean | www.enocean.com collisions with data packages the environment. With each within 40 ms. The transmisbetween the three transmis- STM 330 / STM 330C User Manual V0.60 | Page 17/27 USER MANUAL V0.60 STM 330 / STM 330C 2.10 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. An external 3V battery can be connected at VGC. 2.11 Energy consumption 100 10 Current[m A] 0.1 0.01 0.001 0.0001 0.00001 10 20 30 40 50 60 70 80 90 100 Tim e [m s] Current Consumption of STM 33x Charge needed for one measurement and transmit cycle: ~130 µC Charge needed for one measurement cycle without transmit: ~30 µC (current for external sensor circuits not included) © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 18/27 USER MANUAL V0.60 STM 330 / STM 330C 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. From these values the following performance parameters have been calculated: Wake cycle [s] 10 10 10 100 100 100 Operation Time in darkness [h] Transmit when storage interval fully charged 10 100 10 100 10 100 0.5 1.7 2.1 5.1 16 20 43 98 112 Required reload time [h] at 200 lux within 24 h for continuous operation Current Illuminain µA 24 h operation tion level required after 6 h in lux for for concontinuous tinuous illumination at x lux operation operation storage too sm all storage too sm all storage too sm all storage too sm all 21 16.8 7.8 3.6 storage too sm all storage too sm all storage too sm all storage too sm all 700 560 260 120 100 5220 1620 1250 540 175 140 65 30 25 130.5 40.5 31.3 13.5 4.4 3.5 1.6 0.8 0.6 Assumptions: Internal storage PAS614L-VL3 with 0.25 F, Umax=3.2 V, Umin=2.2 V, T=25 °C Consumption: Transmit cycle 100 µC, measurement cycle 30 µC Pre-installed solar cell ECS 300, operating values 3 V and 5 µA @ 200 lux fluorescent light Current proportional to illumination level (not true at very low levels!) These values are calculated values, the accuracy is about +/-20%! © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 19/27 USER MANUAL V0.60 STM 330 / STM 330C APPLICATIONS INFORMATION 3.1 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 330 is in “Deep Sleep Mode” and the logic levels of WAKE0 and / or WAKE1 is changed, STM 330 starts up. As the there is no internal pull-up or pull-down at the WAKE0 pin, it has to be ensured by external circuitry, that the WAKE0 pin is at a defined logic level at any time. At time of delivery a jumper is connected between WAKE0 and UVDDext. WAKE1 provides an internal 1.8MΩ pull-up. See figure below. WAKE1 UVDD WAKE0 EO3000I 1M8 WAKE1 LRN Button GND 1M8 UVDDext WAKE0 STM 330 Jumper installed at time of delivery 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 of approximately 1 µA is flowing. It is possible to connect an additional external button in parallel between WAKE1 and GND if a different position of the button in the device is required. WAKE0 is connected to UVDDext via a jumper at time of delivery. If the module is mounted onto a host PCB the jumper has to be removed. The circuitry on the host PCB then has to ensure that WAKE0 is always in a defined position. There are two ways to use WAKE0: Connect WAKE0 to UVDDext and connect an external button between WAKE0 and GND. As long as the button is pressed a current of 1 µA will flow. Connect a 3 terminal switch and switch WAKE0 to either GND or UVDDext. In this case there is no continuous flow of current in either position of the switch. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 20/27 USER MANUAL V0.60 STM 330 / STM 330C 3.2 Temperature sensor STM 330 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 circulation of air inside the housing. Only then the measurement will represent the temperature of the environment. Heating of the chip due to its current consumption is negligible as the chip only consumes 200nA while in sleep mode. Temperature measurement every second is not recommended as in this case effects of heating of the chip might become visible. 3.3 Set point control and occupancy button UVDDext OCC GND STM 330 ADIO0 SWPWR In order to control the set point, an external potentiometer has to be connected as shown below. In addition this figure shows how to connect the occupancy button. 10k Set Point © 2010 EnOcean | www.enocean.com Occupancy STM 330 / STM 330C User Manual V0.60 | Page 21/27 USER MANUAL V0.60 STM 330 / STM 330C 3.4 Antenna 3.4.1 Whip antenna Specification of the whip antenna; L=150 mm @ 315 MHz, L=86 mm @ 868 MHz Antenna layout recommendation: STM 330 without host PCB STM 330 with host PCB 868MHz: > 1cm 315MHz: > 2cm Glass, wood, concrete, metal 868MHz: > 2cm 315MHz: > 4cm 868MHz: > 2cm 315MHz: > 4cm © 2010 EnOcean | www.enocean.com Host PCB GND plane STM 330 / STM 330C User Manual V0.60 | Page 22/27 USER MANUAL V0.60 STM 330 / STM 330C 3.5 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. Since the expected transmission range strongly depends on this system conditions, range tests should categorically be performed before notification of a particular range that will be attainable by a certain application. The following figures for expected transmission range are considered by using a PTM, a STM or a TCM radio transmitter device and the TCM radio receiver device with preinstalled whip antenna and may be used as a rough guide only: Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls Plasterboard walls / dry wood: Typically 30 m range, through max. 5 walls Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls Ferroconcrete walls / ceilings: Typically 10 m range, through max. 1 ceiling Fire-safety walls, elevator shafts, staircases and supply areas should be considered as screening. The angle at which the transmitted signal hits the wall is very important. The effective wall thickness – and with it the signal attenuation – varies according to this angle. Signals should be transmitted as directly as possible through the wall. Wall niches should be avoided. Other factors restricting transmission range: Switch mounted on metal surfaces (up to 30% loss of transmission range) Hollow lightweight walls filled with insulating wool on metal foil False ceilings with panels of metal or carbon fiber Lead glass or glass with metal coating, steel furniture The distance between EnOcean receivers and other transmitting devices such as computers, audio and video equipment that also emit high-frequency signals should be at least 0.5 m A summarized application note to determine the transmission range within buildings is available as download from www.enocean.com. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 23/27 USER MANUAL V0.60 STM 330 / STM 330C AGENCY CERTIFICATIONS The modules have been tested to fulfil the approval requirements for CE (STM 330) and FCC/IC (STM 330C) 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! 4.1 CE Approval The STM 330 module bears the EC conformity marking CE and conforms to the R&TTE EUdirective on radio equipment. The assembly conforms to the European and national requirements of electromagnetic compatibility. The conformity has been proven and the according documentation has been deposited at EnOcean. The modules can be operated without notification and free of charge in the area of the European Union and in Switzerland. EnOcean RF modules must not be modified or used outside their specification limits. EnOcean RF modules may only be used to transfer digital or digitized data. Analog speech and/or music are not permitted. EnOcean RF modules must not be used with gain antennas, since this may result in allowed ERP or spurious emission levels being exceeded. The final product incorporating EnOcean RF modules must itself meet the essential requirement of the R&TTE Directive and a CE marking must be affixed on the final product and on the sales packaging each. Operating instructions containing a Declaration of Conformity has to be attached. If the STM 330 transmitter is used according to the regulations of the 868.3 MHz band, a so-called “Duty Cycle” of 1% per hour must not be exceeded. Permanent transmitters such as radio earphones are not allowed. The module must be used with only the following approved antenna(s). Model Type STM 330 Pre-installed whip antenna © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 24/27 USER MANUAL V0.60 STM 330 / STM 330C 4.2 FCC (United States) certification STM 330C 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. The module transmits short radio packets comprised of control signals, (in some cases the control signal may be accompanied with data) such as those used with alarm systems, door openers, remote switches, and the like. The module does not support continuous streaming of voice, video, or any other forms of streaming data; it sends only short packets containing control signals and possibly data and is typically powered by a solar cell in ambient light. The module is designed to comply with, has been tested according to 15.231(a-c), and has been found to comply with each requirement. Thus, a finished device containing the STM 330C radio module can be operated in the United States without additional Part 15 FCC approval (approval(s) for unintentional radiators may be required for the OEM’s finished product), under EnOcean’s FCC ID number. This greatly simplifies and shortens the design cycle and development costs for OEM integrators. The module can be triggered manually or automatically, which cases are described below. Manual Activation The radio module can be configured to transmit a short packetized control signal if triggered manually. The module can be triggered, by pressing a switch, for example. The packet contains one (or more) control signals that is(are) intended to control something at the receiving end. The packet may also contain data. Depending on how much energy is available from the energy source, subsequent manual triggers can initiate the transmission of additional control signals. This may be necessary if prior packet(s) was (were) lost to fading or interference. Subsequent triggers can also be initiated as a precaution if any doubt exists that the first packet didn’t arrive at the receiver. Each packet that is transmitted, regardless of whether it was the first one or a subsequent one, will only be transmitted if enough energy is available from the energy source. Automatic Activation The radio module also can be configured to transmit a short packetized control signal if triggered automatically, by a relevant change of its inputs, for example. Again, the packet contains a control signal that is intended to control something at the receiving end and may also contain data. As above, it is possible for the packet to get lost and never reach the receiver. However, if enough energy is available from the energy source, and the module has been configured to do so, then another packet or packets containing the control signal may be transmitted at a later, unpredictable time. © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 25/27 USER MANUAL V0.60 STM 330 / STM 330C 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. The end-user must not be provided with instructions to remove, adjust or install the module. The Original Equipment Manufacturer (OEM) must ensure that FCC labeling requirements are met. This includes a clearly visible label on the outside of the final product. Attaching a label to a removable portion of the final product, such as a battery cover, is not permitted. The label must include the following text: Contains FCC ID: SZV-STM310C The enclosed device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (i.) this device may not cause harmful interference and (ii.) this device must accept any interference received, including interference that may cause undesired operation. When the device is so small or for such use that it is not practicable to place the statement above on it, the information required by this paragraph shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. However, the FCC identifier or the unique identifier, as appropriate, must be displayed on the device. 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 au- thority to operate the equipment. The OEM must ensure that timing requirements according to 47 CFR 15.231(a-c) are met. 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 Type Pre-installed Wire/Monopole © 2010 EnOcean | www.enocean.com Gain 1.0 dBi STM 330 / STM 330C User Manual V0.60 | Page 26/27 USER MANUAL V0.60 STM 330 / STM 330C 4.3 IC (Industry Canada) certification In order to use EnOcean’s IC number, the OEM must ensure that the following conditions are met: Labeling requirements for Industry Canada are similar to those required by the FCC. The Original Equipment Manufacturer (OEM) must ensure that IC labeling requirements are met. A clearly visible label on the outside of a non-removable part of the final product must include the following text: Contains IC: 5713A-STM310C The OEM must sign the OEM Limited Modular Approval Agreement with EnOcean © 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 27/27
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