Lierda Science and Technology Group LSD4WF WiFi Module User Manual

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LSD4WF User Manual

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Lierda Science & Technology LtdLSD SCIENCE & TECHNOLOGY CO., LTD.LSD4WF-2MD05101Low Power Wi-Fi Module User ManualModel ：LSD4WF-2MD05101Name ：Wi-Fi ModuleRevision ：v1.0FCC ID:N8NLSD4WF

Index1. Product overview.................................................................................................................................................31.1 General Description..................................................................................................................................31.2 Features........................................................................................................................................................32. Parameters.............................................................................................................................................................43. Package.................................................................................................................................................................. 44. Pin definition.........................................................................................................................................................55. Behavior of electricity.........................................................................................................................................66. Typical application...............................................................................................................................................77. Reference design................................................................................................................................................. 78. Developing tool................................................................................................................................................... 8

1. Product overview1.1 General DescriptionLSD4WF-2MD05101 is a Wi-Fi module for any electronic device to achieve networkingcapabilities. The module is fully in line with the 802.11b/g/n international standard specification, theinternal integrated high performance Cortex M4 and Wi-Fi chip make it easy to access the serial portequipment or MCU control equipment to network, so as to realize wireless networking.Built-in TCP/IP protocol stack, supports STA/AP/STA+AP coexistence working modes, supports802.11b/g/n protocol, supports wireless local upgrade and OTA remote firmware upgrade.32.8mmx23.1mmx3.2mm, using the stamp hole package, built-in board PCB antenna.1.2 FeaturesConfirm with 802.11b/g/n protocol.Built-in high performance M4 core MCU, highest frequency 100MHz, high speed dataprocessing ability.USART/GPIO/SPI/PWM multiple interface.QJoine high speed link configuration.Support STA/AP/STA+AP coexist work mode.Support WPA/WPA2/WEP encryption.Support wireless, Web page and OTA remote hardware upgrading.Support multiple net protocol communication.Provide abundant AT＋instruction set configuration.Optional built-in on board PCB antenna and external antenna interface.Dimension：32.8mmx23.1mmx3.2mm, Stamp hole paste.3.3V single power supply.CE/FCC.RoHS.

2. ParametersParametersWirelessParametersStandard 802.11 b/g/nFrequency 2.412GHz-2.462GHzEmitting powerReceivingSensitivity802.11b: -83 dBm (@1Mbps ,CCK)802.11g: -74dBm (@54Mbps, OFDM)802.11n: -61dBm (@HT20, MCS7)Antenna Built-in：On board PCB antennaHardwareParametersWorking Voltage 3.3V（3.0V~3.6V）Working Current Quiescent Current：~20mAEmitting peak Current：~200mAWorkingTemperature -40℃~ 85℃HardwareInterface USART/GPIO/SPI/PWMDimension 32.8mmx23.1mmx3.2mmSoftwareparametersWireless networktype STA/AP/STA+APSecurityMechanism WEP/WPA-PSK/WPA2-PSKEncryption WEP/AES/TKIPHardwareupgradingLocal wireless upgrading/ Web pageupgrading/ Remote upgradingNetwork Protocol IPv4, TCP/UDP/FTP/HTTPUserConfigurationQJoine Configuration，AT+instruction，WebpagePic1-1 LSD4WF-2MD05101 Basic Parameters3. PackagePic 1-2 LSD4WF-2MD05101 Front and back802.11b:+9.82dBm(@11Mbps)802.11g:+8.27dBm(@54Mbps)802.11n:+8.12dBm(@HT20,MCS7)

Unit：mmPic 1-3 LSD4WF-2MD05101 module package dimension4. Pin definitionPic 1-4 LSD4WF-2MD05101 Module pin layoutPin Pin definition Function

1 GND Ground pin2 SWCLK Program download port5 SWDIO Program download port9 VCC Power supply pin (DC_3.3V)17 GND Ground pin20 GPIO3/USART_CK/TIM1_CH1 Multiplex pin:IO port/USART / Timer25 WKUP Module wake up27 GPIO1/USART_CTS/TIM1_CH4/SPI4_MISO Multiplexed pin：IO port/USART /timer/SPI port28 GPIO9/SPI4_SCK/TIM1_CH1N Multiplex pin：IO port/SPI port/timer29 GPIO8/SPI4_NSS/TIM1_BKIN Multiplex pin：IO port/SPI port/timer30 GPI07/ADC1_1/TIM2_CH2&TIME5_CH5/SPI4_MOSI Multiplex pin：IO port/ADC/timer/SPI port31 VCC Power supply pin (DC_3.3V)32 GND Ground pin34 VCC Power supply pin（DC_3.3V）39 USART_TX USARTport Data sendng port40 GPIO2/USART_RTS/TIM1_ETR Multiplex pin：IOport/USARTport/timer41 USART_RX USARTportdata receiver42 GPIO1/USART_CTS/TIM1_CH4/SPI4_MISO Multiplex pin：IOport/USARTport/timer/SPIport43 GPI04/ADC1_9/TIM3_CH4/nLink Multiplex pin：IOport/ADC/timer44 GPI05/ADC1_8/TIM3_CH3/nReady Multiplex pin：IOport/ADC/timer45 GPI06/ADC1_4/nReload Multiplex pin:IOport/ADC47 RST/nReset Reset pin48 GND Ground pinTable 1-1 LSD4WF-2MD05101 Module pin definition5. Behavior of electricityParameters Minimum Typical value Maximum UnitWorking voltage 3.0 3.3 3.6 VStandby current 5 mAStatic current 20 mATX current 200 mA

RX current 50 mATable1-2 LSD4WF-2MD05101 behavior of electricity6. Typical applicationPic1-5 LSD4WF-2MD05101 Typical circuit connectionPin State RemarkNRST411 Input, valid in low level Module reset pin with internal pull resistornlink Output (connected to LED) Check the network state of module or indicationfor batch upgrade or configurationnReload Input, valid in low level Connect button to chip pin for factory settingrestoringSleep_RQ Input, standby control Connect button to chip pin for module dormancymanagingSleep_ON Output, standby state indication Indication of dormancy state, connected withLEDUSART_TX/USART_RXSerial port transceiver port Serial port transceiver portTable 1-3 Connection introduction of cardinal pin7. Reference designPCB onboard antenna is built in LSD4WF-2MD05101 module, users should using onboard antennadesign need to be cautious that：1, No components or GND on antenna area of user board2, Keep antenna away from metal, stay over 10mm away from surrounding higher components.3, Antenna can’t be covered by metal case and it should be over 10mm away from plastic casing.

External interface introduction, table: 1-4Function Item DescriptionExternalinterfaceUSB2TTL UART to USB debugging port, can be used forpower supplyUSB DEBUG USB2.0 debugging interface(reserved)DC5-18V 5~18V DC inputCOM1 RS232 interfaceRS485 RS485 interfaceJMP1 PreserveJMP2 PreserveJMP3 4Pin USB and RS232 debugging choosing port, leftchoose USBJPM6 3Pin RS485 与RS232 debugging choosing port, nowire jumper choose RS232EXT_PORT LSD4WF-2MD05101 GPIO interface expandJTAG JTAG data debugging interfaceBattery Lithium battery supply interfaceLEDindicationlightPower 3.3V power indicationSleep_ONModule standby indicationOn：Module is in standby modeOff：Module is workingnReadyModule start or updating ready indicationOn：Module started upOff：Module not startedBlink：Remote updating, blink frequency inproportion to download speednLinkModule connection indicationOn：Wi-Fi connected；Off：Wi-Fi unconnected；ButtonWPS Function reservenReset ResetSleep_RQ Function reservenReload Press button for over 4 seconds to restore to factorysettings.Table 1-4 External interface introduction of LSD4WF-2MD05101developing board

(OEM)Integratorhastoassurecomplianceoftheentireend‐productincl.theintegratedRFModule.Additionalmeasurements(15B)and/orequipmentauthorizations(e.gVerification)mayneedtobeaddresseddependingonco‐locationorsimultaenoustransmissionissuesifapplicable.Integratorisremindedtoassurethattheseinstallationinstructionswillnotbemadeavailabletotheend‐userofthefinalhostdevice.Withthelowoutputpower,thisRFModulemeetstheFCCSARexemptionandcanbethereforeintegratedintoany(portable,mobile,fixed)hostdevice.Thefinalhostdevice,intowhichthisRFModuleisintegrated"hastobelabelledwithanauxilliarylablestatingtheFCCIDoftheRFModule,suchas"ContainsFCCID:". Dependingonthesizeofthefinalend‐product,the§15.19FCCstatement"Thisdevicecomplieswithpart15oftheFCCrules.Operationissubjecttothefollowingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation."shouldbeplacedalsoonthedeviceoralternativelywithinaprominentlocationoftheusersmanualThe§15.21"Changes or modifications to this unit not expresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser’sauthoritytooperatetheequipment."statementhastobeincludedinaprominentlocationoftheusersmanualN8NLSD4WF

NOTE: 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: —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. 

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