High-Flying
HF-LPT120 Low Power WiFi Module User Manual
Shanghai High-Flying Electronics Technology Co., Ltd(www.hi-flying.com)
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HF-LPT120’s default interval time is 50ms. (If the UART data interval is less than 300ms, the data may
be packaged into one fragment ) User can also set this interval to fast through AT command. The
UART data may be divided as fragment.
Through AT command: AT+UARTTE=fast/normal, We recommend to use just normal parameter.
2.3.2.
UART Auto-Frame
HF-LPT120 support UART auto-frame function. If user select open this function and setting auto-frame
trigger length and auto-frame trigger time parameters, then module will auto framing the data which
received from UART port and transmitting to the network as pre-defined data structure.
Auto-frame trigger length
: The fixed data length that module used to transmitting to the
network.
Auto-frame trigger time:
After the trigger time, if UART port received data can’t reach auto-
frame trigger length, then module will transmitting available data to the network and bypass
the auto-frame trigger length condition.
Detailed UART auto-frame function can refer to AT+ instruction set ―UARTF/UARTFT/UARTFL‖
introduction.
2.4.
Encryption
Encryption is a method of scrambling a message that makes it unreadable to unwanted parties,
adding a degree of secure communications. There are different protocols for providing encryption, and
the HF-LPT120 module supports following:
WEP
WPA-PSK/TKIP
WPA-PSK/AES
WPA2-PSK/TKIP
WPA2-PSK/AES
2.5.
Parameters Configuration
HF-LPT120 module supports two methods to configuration parameters
: Web Accessing
and
AT+instruction set.
Web accessing means users can configure parameters through Web browser. When HF-LPT120
module connected to wireless network, parameters configuration is done on a PC connected to the
same wireless network.
AT+instruction set configuration means user configure parameters through serial interface command.
Refer to ―AT+instruction set‖ chapter for more detail.
2.6.
Firmware Update
（
Reserved, See Appendix C
）
HF-LPT120 module supports two on-line upgrade methods:
Webpage Wi-Fi Upgrade
