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1. Overview
3YV 9%68 ;* MW E ;0%2 1SHYPI [MXL 9%68 WIVMEP MRXIVJEGI
LS-UART-WiFi is a WLAN Module with UART serial interface by LinkSprite (www.linksprite.com).
1.1.
Main Functions
1.1.1 Summary
SOC chip based solution: cost-effective high quality and stable, built-in WiFi protocol stack and
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serial transfer protocol;
Simple interface: 5V, ground, RX, TX four-wire connection;
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Small dimension 22 * 60 * 7 mm;
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Simple and efficient serial user interface, easy for development.
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Can be easily driven by 8,16, 32-bit microcontroller such as MSC51/PIC/ARM7.
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Simple programming.
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1.1.2 Specifications
Support UART data interface, baud rate: 19.2k / 38.4k / 57.6k / 115.2k bps;
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Support 802.11b wireless data rate up to 11Mbps;
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Support Integrated 802.11 MAC protocol functions;
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Support STA applications in basic networks;
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Support OPEN / WEP authentication method;
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Support shared key encryption method wep64/wep128 data transmission;
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Support automatic networking mode and manual networking mode.
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In the automatic mode, the module can automatically scan the target network, and can
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automatically reconnect when disconnected
In manual mode, user can control to connect or disconnect flexibly;
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Support RAW / UDP / TCP format of network data transmission;
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Support 7 groups of basic parameter settings, can connect up to seven target networks;
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Support parameter configuration through the user interface;
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Support online firmware upgrade
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Support external antenna, UFL interface. Maximum transmission power is 100mW, and receiving
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sensitivity is -90dBm;
1.2.
Typical Applications
1.2.1. Wireless POS Machine
In a Wireless Bus System using WLAN techniques, terminals can be car held or hand held.
When buses reach the terminal, wireless POS machine detects the identification automatically,
and then connects to the AP. Operational Data in POS machine is uploaded to the Data Center
Server in Bus terminal through AP.
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