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Lierda Science & Technology Group Co., LTD
User’s manual
Address: Lierda Building, 425 Dengyun Road, Hangzhou, China Tel:0571-88800000 Fax: 0571- 89908080
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1 Product Overview ................................................................................................................................................... 1
1.1 Features ............................................................................................................................................. 1
1.2 Parameters ................................................................................................................................................... 1
1.3 Applications ................................................................................................................................................. 1
2 Hardware Overview ........................................................................................................................................... 2
2.1 Appearance ........................................................................................................................................ 2
2.2 Product structure size ........................................................................................................................ 2
2.3 Distribution Pin Description ............................................................................................................... 3
3 Functional Description ....................................................................................................................................... 6
3.1 Networking features ..........................................................................................................................
3.1.1 AP Networking ........................................................................................................................... 7
3.1.2 AP Ne
tworking ........................................................................................................................... 7
3.2 Passthrough mode ............................................................................................................................. 7
4 Instructions for use ............................................................................................................................................ 7
4.1 Network Connection .......................................................................................................................... 7
4.1.1 Serial Port Configuration ............................................................................................................ 8
4.2 Creating Socket .................................................................................................................................. 8
4.2.1 Creating a SocketA ..................................................................................................................... 8
4.2.2 Creating a SocketB ..................................................................................................................... 9
4.2.3 Pass
through Mode ................................................................................................................... 10
5 Warning ........................................................................................................................................................... 10
6
Address: Lierda Building, 425 Dengyun Road, Hangzhou, China Tel:0571-88800000 Fax: 0571- 89908080
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1 ProductOverview
LSD4WF-3211I5SSisLSDTechnologyCo., Ltd. developedultra-low-power embedded WIFImodule, using the
industry's lowest power, high-performanceembeddedprocessorsWIFInetwork. Integratedhardwaremodulewithin
theMAC, radiotransceiverunit, poweramplification unit, developedfor usersto useM4 coreunitsupports802.11b /
g / nprotocol standards; LSD4WF-3211I5SS modulara low-powerWIFImodule, can help customersachieve
productupgradewirelessnetwork communicationstothebasicserial communication.
1.1 Features
Supports802.11 b / g / nprotocol standards, WPA / WPA2 encryption;
supportSmartconfigconfiguration anda APkeyconfiguration;
integratedTCP / IPprotocol stack,reducing theprogramming burden;
containCortex M4core,friendly developmentenvironment;
Simplylinkprovide networkprogramminglibraryandM4 coredriver library;
provide a richperipheral interfaces, UART / SPI / I2C / I2S / PWM, etc.
low power
UnderLPDSmode, the operating current 2ma;
ultra-smallsize of23 * 32mm,surface mountpackage;
Easy to useIAR / CCScompiler environment;
consumption,HIB, the operating current 4ua;
1.2Parameters
optionalexternal interfaceUART / SPI / I2C / I2S
own internalnetworkMAC
network protocolstandard802.11 b / g / n20
2.4Gnetworkoperating frequency
transmitpower: 802.11b: 15dBm+/-1.5dB
802.11g: 11dBm+/-1.5dB
802.11n20: 10dBm+/-1.5dB
Receiving sensitivity: 802.11b -94.5dbm (8% PER)
802.11g -73dbm10% PER 54M@OFDM
802.11n -70dbm
Undercurrent--HIBmode: 4ua;
Undercurrent--Idle Connectmode: 2ma (DITM = 1);
hardwareencryption: WEP, WPA, WPA2;
antennaconfigurations:on-boardPCBantenna andexternal antennaonboard;
modulepin count: 48pin;
module size: 23.1 * 32.8mm;
10%PER MCS7
1.3Applications
Smart HomeApplications
white goods
handheldnetworkdevices
wirelessnetworking applications
remoteequipment monitoring
Address: Lierda Building, 425 Dengyun Road, Hangzhou, China Tel:0571-88800000 Fax: 0571- 89908080
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Address: Li
rda Building,
425 Dengyun
Road, Hangz
hou, China Tel:05
1-88800000 Fax:0571-89908080