Wireless Networking; Sta - Waveshare WIFI232 User Manual

WAVESHARE ELECTRONICS
WIFI232 User Manual
If the sending data is 1234.In the 80 port of 192.168.1.1 will receive the following data
POST /set HTTP /1.1
Connection:keep-alive
User-Agent:lwip1.3.2
Content-Length:4
Host:192.168.1.1:80
1234
If the HTTP type is GET, the 80 port 192.168.1.1 receive data
POST /set1234 HTTP /1.1
Connection:keep-alive
User-Agent:lwip1.3.2
Content-Length:0
Host:192.168.1.1:80
Data received from server will be directly sent to the serial port,without any treatment.

4.3 Wireless Networking

WIFI232 module can be configured as both wireless STA and AP base on network type. Logically
there are two interfaces in WIFI232. One is for STA, and another is for AP. When WIFI232 works
as AP, other STA equipments are able to connect to wireless LAN via WIFI232 module. Wireless
Networking with WIFI232 is very flexible.
Following figure shows the functional architecture of WIFI232 module:
Figure 16 WIFI232 Functional Architecture
Notes:
AP: that is the wireless Access Point, the founder of a wireless network and the center of the
network nodes. The wireless router we use at home or in office may be an AP.
STA: short for Station, each terminal connects to a wireless network (such as laptops, PDA and
other networking devices) can be called with a STA device.

4.3.1 STA

Infrastructure: it‟s also called basic network. It built by AP and many STAs which join in.
The characters of network of this type are that AP is the center, and all communication between
STAs is transmitted through the AP. The figure following shows such type of networking.
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