User's Manual

1. Function Description
EMW3280 Wi-Fi modules developed by MXCHIP integrate the TCP/IP protocol, IEEE
802.11b/g MAC and PHY. Wireless network function can be deployed on user's products easily.
EMW3280 will save your development time and greatly improve your product’s competitiveness.
EMW3280 modules can run in the industrial temperature rang: -40℃ to 85℃. The highest
baudrate of UART interface is 921600. It has two transfer modes: TCP, UDP, and support EMSP
commands to configure its parameters.
1.1. Features
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Single operation voltage: 3.3V.
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Power consumption: <220mA under run mode, current <1mA under standby mode.
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CPU frequency: 120MHz，flash size: 1M bytes，RAM size128k bytes.
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Two working modes: command mode and data transmission mode.
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Complete Wi-Fi wireless communications solutions, to reduce the resource requirements of
the application processor;
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Multipul configuration methods: build-in web pages，EMW tool box(PC software) and
EMSP commands；
RF features
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WLAN standard: IEEE 802.11b/g/n, Wi-Fi compatible.
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RF frequency: 2.4G ISM.
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Support AP chient mode, soft AP mode and Ad-hoc mode.
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WEP40 and WEP104 encryption (64/128bit), support open system or shared key.
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WPA/WPA2 PSK encryption, use AES or TKIP encryption algorithm.
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Auto recover from Wi-Fi disconnection.
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Time interval from reset to Wi-Fi connection is less than 2 seconds.
UART features
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UART Baudrate：1200－921600；
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Highest transmission speed: 90kbytes/s(send or receive), 60kbytes/s(send & receive both).
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upport UART hardware flow control that provide the reliable data transmission
TCP/IP features
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Support DNS service.
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Support DHCP client and DHCP server.
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Support network data transmission protocol: TCP, UDP；
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TCP server or client.
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Reliable TCP link management: Automatic reconnect when the connection was lost.
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As a TCP server, allow 3 TCP connection from the clients.
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UDP broadcast or unicast.
! ! EMW3280 Wi-Fi module
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