Hangzhou Gubei Electronics Technology 3301SBSL WT1SBSL User Manual

Hangzhou Gubei Electronics Technology Co.,Ltd WT1SBSL

Contents

User manual_1

 BiTrend™ EssentialSeriesWi-Fi Module User Manual WT1SBSL
1www.ibroadlink.com Hangzhou Gubei Electronics Technology Co., Ltd. Copyright Information The information contained in this document is the proprietary information of Hangzhou Gubei Electronics Technology Co., Ltd. (hereinafter referred as BroadLink). Further, no portion of this document may be altered or edited in any form or by any meanswithout the prior written consent of BroadLink, the copyrightholder. Further BroadLink reserves the right to make modifications, additions anddeletions to this document due to typographical errors, inaccurate information, orimprovements to products mentioned in the document at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this document or published as errata sheet. Version History V 1.0.0 22/01/2016 1stissue of preliminary document
2www.ibroadlink.com Table of Contents 1. Introduction.................................................................................................................................31.1 Overview............................................................................................................................31.2 Applications.......................................................................................................................41.3 Key Features......................................................................................................................42. Product Overview.......................................................................................................................52.1 Product Picture.................................................................................................................52.2 Block Diagram...................................................................................................................53. Electrical Characteristics.............................................................................................................63.1 Absolute Maximum Ratings – Voltage & Current........................................................63.2Current consumption........................................................................................................63.3 Absolute maximum ratings – Temperature...................................................................73.4Absolute maximum ratings – ESD...................................................................................74. Module Interfaces.......................................................................................................................84.1 PIN Layout.........................................................................................................................84.2 PIN Definitions..................................................................................................................85. Reference Design........................................................................................................................96. AntennaCharacteristics............................................................................................................106.1 Antenna Selection..........................................................................................................106.2 Minimizing Radio Interference.....................................................................................116.3 Specification of On-Board Antenna.............................................................................12Appendix A Glossary（Quentin respible）...............................................................................13Appendix B Reference paper（Quentin respible）..................................................................15Contact Us.....................................................................................................................................16
3www.ibroadlink.com 1. Introduction 1.1 Overview BiTrend™ Essentialis the industrial leading 2.4Ghz 802.11 b/g/n embedded Wi-Fi module which delivers unmatched performance and codeless development in a compact package, providing a quick, easy and cost effective way for developers and manufacturers to add Wi-Fi connectivity for home automation, lighting control, energy efficiency and other IOT applications. BiTrend™ Essential family combines a 2.4Ghz 802.11 b/g/n radio transceiver with a 32-bit microprocessor and embedded with MAC, baseband processing and optimized Wi-Fi network stack. It is an ideal solution for developers and manufacturers with limited RF and embedded programming expertise as it significantly reduces RF design time and removes the burden of testing and certification. Benefitted from BroadLink’s turn-key solution, BiTrend™ Essential is an ideal solution for developers with limited Wi-Fi or RF expertise or for those seeking faster time to market. It reduces RF design time and removes the burden of testing and certification. BiTrend™ Essential is fully compliant with IEEE 802.11 b/g/n standard and certified with CE, FCC and RoHS. BiTrend™ Essential is a highly integrated Wi-Fi SoC(system on Chip) single chip, which supportsIEEE802.11b/g/n single stream, providing GPIO for intelligent control, and UART interfaces for device communication. BiTrend™ Essential has 8Mbits flash and integrates power amplifier, low noise amplifier, and RF switch to reduce the module size and RF design capability required. And also integrate power manage unit for single 3.3V power source for cost effective design. BiTrend™ Essential embedded 32-bit RISC MCU for 802.11b/g/n drivers, supplicant, TCP/IP protocol stack, and networking applications, can be operated in station mode and softAP mode. The WT1SBSL is an ideal solution for embedded device to enable networking service with minimized design effort.
4www.ibroadlink.com RFreceiverRFtransmitterBasebandMAC / Packet buffer / security engineUARTSystem controlRF_INRF_OUTPRF_OUTNUARTGPIO/LEDFigure 1. WT1SBSL block diagram 1.2 Applications  Smart home appliances  Remote Control  Medical/Health Care  Network consumer devices 1.3 Key Features a． Support IEEE802.11b/g/n b． Support UARTtransparent transfer c． Support STA\AP d． Patent SmartConfig™ technology e． Support IPv4, TCP/UDP/ DNS/DHCP f． PCB printed antenna g． Power source: 3.3V h． Peripherals: 1*UART 5*GPIO 1*RESET i． Dimension 31mm*17.7mm*3.6mm j． ESD: 2KV k． Absolute maximum ratings
5www.ibroadlink.com 2. Product Overview 2.1 Product Picture 2.2 Block Diagram MTK7681802.11 b/g/nSoCSPI FLASHBalun Circuit40MHz OSCResetMultiplex CircuitUART Filter CircuitPCBAntennaGPIO
6www.ibroadlink.com 3. Electrical Characteristics 3.1 Absolute Maximum Ratings – Voltage & Current Using products above the absolute maximum ratings may cause permanent damage to the device. These are maximum ratings only and functional operation of the device at these conditions is not implied. Exposure to maximum rating conditions for extended periods may aect the reliability of the device. SymbolRatingMINTYPMAXUnitVDD333.3VSupplyVoltage2.973.33.63V Symbol Ratings Max Unit IVDD Tota l currentintoVDDpowerlines(source) 90 mA IVSS Tota l currentoutofVSSgroundlines(sink) 90 IIO OutputcurrentsunkbyanyI/Oandcontrolpin 10 OutputcurrentsourcebyanyI/Osandcontrolpin10 3.2Current consumption Symbol Condition Performance TYP UnitIRF IDLE mode 80 mAIRF RX Active, HT40, MCS7 151 mAIRF TX HT40, MCS7 @ 15dBm（pulse） 210 mAIRF TX CCK 11Mbps @ 18dBm（pulse） 250 mANote: All result is measured at the antenna port and VDD33 is 3.3V
7www.ibroadlink.com 3.3 Absolute maximum ratings – Temperature Symbol Rati Max Unit TSTG Storagetemperature –40 to+125 ℃ TA Workingtemperature -10 to+70 ℃ Humidity Non condensing, relative humidity 90%（RH） 3.4Absolute maximum ratings – ESD Symbol Ratings Conditions Class Max Unit VESD(HBM) Electrostatic discharge voltage (human body model) TA = +25 °C conforming to JESD22-A114 2 2000 V
8www.ibroadlink.com 4. Module Interfaces 4.1 PIN Layout WT1SBSL has one group of pins2X7. The layout of PINs are shown in the figure below. Figure6.WT1SBSLpin-out 4.2 PIN Definitions PIN Assignment PINPINNAMENOTEPin1GNDPin2VCC3.3VPin3RST_NModule software reset,AvailableatlowlevelPin4UART_TXUARTOnlyforPassthroughPin5UART_RXPin6GPIO3Pin7GPIO4FeedwatchdogPin8GPIO4FeedwatchdogPin9GPIO3Pin10GPIO2
9www.ibroadlink.com Pin11GPIO1Module software reset,AvailableatHighlevelPin12GPIO0UsuallyuseasWi‐FiLEDPin13VCC3.3VPin14GND 5. Reference Design In addition to the standard serial port，the peripheral MCU also need to provide two GPIO pins to connect with the GPIO4 pin and the RST pin of the WIFI module respectively,when the WIFI module works properly,the GPIO4 pin will keep outputting message of dog feeding,if the peripheral MCU did not receive the message,the module will reset and restart through pulling down the RST pin by the other GPIO pin. If the peripheral MCU uses power source of 5V,it needs to add a level switching circuit in the connection of the serial port and the related circuit. The module needs a large current about 250mA when transmitting data,please ensure that the power source can provide sufficient current. WIFIMODULEPeripheral MCU
10www.ibroadlink.com 6. AntennaCharacteristics 6.1 Antenna Selection The WT1SBSL supports on-board PCB printed antenna.When the Operating Frequencyis between 2.4G~2.5GHz, S11 of antenna port is less than-10dB and peak gainis about 1. 5dBi. Figure 7. Antenna radiation pattern simulation Figure 8. Antenna port S11simulation curve In practical use, WT1SBSL is welded on user’s boardand value of S11 has some changes.
11www.ibroadlink.com 6.2 Minimizing Radio Interference When integrating the Wi-Fi module with on board PCB printed antenna, make sure the three points below: 1. The area under the antenna end of the module should be keep clear of metallic components, connectors, vias, traces and other materials that can interfere with the radio signal. 2. The area around the antenna end the module protrudes at least 10mm from the mother board PCB and any metal enclosure. 3. When planning PCB layout, it is recommended that user places the antenna of Wi-Fi module as close as possible to the edge of boarder to ensure the good performance of antenna, which is shown in the picture below.
12www.ibroadlink.com 6.3 Specification of On-Board Antenna OperatingFrequency 2.4G~2.5GHz VSWR(max) 2 Peak Gain 1.45dBi AntennaType PIFA
13www.ibroadlink.com Appendix A Glossary（Quentin respible） ADCAnalog‐to‐DigitalConverterAESAdvancedEncryptionStandardANTAntenna APWirelessAccessPointBPSKBinaryPhaseShiftKeyingDBPSKDifferential binary phase shift keyingDC Direct CurrentCCKComplementaryCodeKeyingCDMChargeDeviceModelDHCPDynamic Host Configuration ProtocolCMOSComplementaryMetalOxideSemiconductorDNSDetermination of non-significanceDQPSK Differential quadrature phase shift keying DSSS Demand assigned signaling and switching subsystem DTIMDigital Transmission Interface ModuleEMSP Enhanced Modular Signal ProcessorESD Electrostatic Discharge EVM Error Vector Magnitude FCC Federal Communications Commission FER Floating Error GND Ground GPIO General Purpose Input/Output HBM Human body model IEEE Institute of Electrical and Electrionics Engineers IO Input/Output IOT Individual operation test IPv4 Internet Protocol version 4 LED Light-emitting diode LVTTL Low Voltage Transistor Transistor Logic MAC Medium Access Control layer MCS Modulation and coding scheme MCU Microcontroller Unit MIMO Multiple-Input Multiple-Output MSL Multilayer Switching Protocol NC Numerical Control NRST Negative Reset OFDM Orthogonal Frequency Division Multiplexing OSC Oscillator PCB Printed Circuit Board PIFA Planar inverted F antenna QPSK Quadrature Phase Shift Keyin RC Resistance- capacitance RF Radio Frequency
14www.ibroadlink.com RISC Reduced Instruction Set Computer RoHS Restriction of Hazardous Substances RX Receiver SDIO Serial Digital Input/Output SoC System on Chip SPDT Single-Pole Double-Throw SPI Serial Peripheral Interface STA Spanning Tree Algorithm TCP Transfer Control Protocol TKIP Temporal Key Integrity Protocol TX Transmitter IP Internet Protocol UART Universal Asynchronous Receiver/Transmitter UDP User Datagram Protocol UFL a miniature coaxial RF connector for high-frequency signals manufactured by Hirose Electric Group VSWR Voltage Standing Wave Ratio WEP Wired Equivalent Privacy WEPA Welded Electronic Packaging Association WEP64 64 bit Wired Equivalent Privacy WEP128 128 bit Wired Equivalent Privacy WPA2 Wi-Fi Protected Access 2 XTAL External Crystal Oscillator QAM Quadrature Amplitude Modulation 802.11 b/g/n The IEEE 802.11 b/g/n 
15www.ibroadlink.com Appendix B Reference paper（Quentin respible） [1] IEEE 802.11b/g/n- published IEEE 802.11-2007wireless networking standard and published IEEE 802.11-2012 standard for Information technology - Clause 19 of the publishedIEEE 802.11-2007 standard, and Clause 19 of the published IEEE 802.11-2012 standard. 
16www.ibroadlink.com Contact Us Hangzhou Gubei Electronics Technology Co., Ltd. Room 106, Building 1, No. 611 Jianghong Road, Binjiang, Hangzhou, Zhejiang, P.R.China T: +86-571-85159281 F: +86-571-86631817 E: intl@broadlink.com.cn W: www.ibroadlink.com.cn ThisdevicecomplieswithPart15oftheFCCRules/IndustryCanadalicence‐exemptRSSstandard(s).Operationissubjecttothefollowingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation.LeprésentappareilestconformeauxCNRd'IndustrieCanadaapplicablesauxappareilsradioexemptsdelicence.L'exploitationestautoriséeauxdeuxconditionssuivantes:(1)l'appareilnedoitpasproduiredebrouillage,et(2)l'utilisateurdel'appareildoitacceptertoutbrouillageradioélectriquesubi,mêmesilebrouillageestsusceptibled'encompromettrelefonctionnement.Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser'sauthoritytooperatetheequipment.ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgeneratesusesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowingmeasures:
17www.ibroadlink.com —Reorientorrelocatethereceivingantenna.—Increasetheseparationbetweentheequipmentandreceiver.—Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.—Consultthedealeroranexperiencedradio/TVtechnicianforhelp.MPERequirementsTosatisfyFCC/ICRFexposurerequirements,aseparationdistanceof20cmormoreshouldbemaintainedbetweentheantennaofthisdeviceandpersonsduringdeviceoperation.Toensurecompliance,operationsatcloserthanthisdistanceisnotrecommended.Lesantennesinstalléesdoiventêtresituéesdefaconàcequelapopulationnepuisseyêtreexposéeàunedistancedemoinde20cm.Installerlesantennesdefaconàcequelepersonnelnepuisseapprocherà20cmoumoinsdelapositioncentraledel’antenne.LaFCCdeséltats‐unisstipulequecetappareildoitêtreentouttempséloignéd’aumoins20cmdespersonnespendantsonfunctionnement.RegionSelectionLimitedbylocallawregulations,versionforNorthAmericadoesnothaveregionselectionoption.InformationfortheOEMIntegratorsThisdeviceisintendedforOEMintegratorsonly.Pleaseseethefullgrantofequipmentdocumentforrestrictions.LabelInformationtotheEndUserbytheOEMorIntegratorsIftheFCCIDofthismoduleisnotvisiblewhenitisinstalledinsideanotherdevice,thentheoutsideofthedeviceintowhichthemoduleisinstalledmustbelabelwith“ContainsFCCID:2ACDZ‐3301SBSLandIC:21239‐3301SBSL”

Navigation menu