User's Manual

HF-A11x V3.1 User Manual
Shanghai High-Flying Electronics Technology Co., Ltd
www.hi-flying.com
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For above networking, HF-A11x module works as STA
（Firmware is Z-Version）,and module
configured as bridge mode. When module connect to AP, all devices connected to module
Ethernet interface will get assigned IP address from AP (For example: 192.168.1.101).For
module works as bridge mode, it can be treated as a transparent device and PC1, PC2 can
communicate without any limit. But in this networking, HF-A11x module needs assign a static
LAN IP address (For example: 192.168.1.10) if module also needs communication with AP or
configuration through web page.
2.7. Work Mode
HF-A11x modules provide two kinds of work mode: Transparent transmission mode and
Agreement Transmission mode. Transparent transmission mode achieves a plug and play serial
data port, and reduces user complexity. Agreement Transmission mode can keep 100% accurate
data transmitting. User can configure dedicated work mode base on actual requirement, and
save the configuration information to the flash of HF-A11x, then module will go into the appointed
work mode after power up.
For a module which already finished parameters setting, it will try to connect a wireless network
and server with these parameters after power up, and serial interface is also active with pre-
configured parameters. Then all the data is transferred directly between serial interface and Wifi
interface without any interpreted.
The parameters which need to configure include:
¾ Wireless Network Parameters
 Wireless Network Name
（SSID）
 Security Mode
 Encryption Key
¾ TCP/UDP Linking Parameters
 Protocol Type
 Link Type
（Server or Client）
 Target Port ID Number
 Target Port IP Address
¾ Serial Port Parameters
 Baud Rate
 Data Bit
 Parity (Check) Bit
 Stop Bit
 Hardware Flow Control
¾ Work Mode Selection
 Transparent transmission or Agreement Transmission mode
Transparent transmission demo as showing in the following figure, a HF-A11x module can be
taken as a virtual serial line when UART interface working in transparent transmission mode. And
user device will realize wireless data transmition almost without any changes.