USR-WIFI232-A/B/C User Manual
http://www.usriot.com
Jinan USR IOT Technology Limited
Page 81 of 93
U S R -W I F I 2 3 2 -
A/B/C
User
Device
U A R T
U S R -W I F I 2 3 2 -
A/B/C
U A R T
AP SSID ：U S R -W I F I 2 3 2 -
A P _x x x x
LAN IP :1 0 .1 0 .1 0 0 .2 5 4
Net Prot :Tcp Server
Protocol Port :8 8 9 9
STA SSID :U S R -W I F I 2 3 2 -
A P _x x x x
WAN IP :D H C P
Net Prot :
Tcp client
1 0 .1 0 .1 0 0 .2 5 4 :8 8 9 9
LAN IP :1 0 .1 0 .9 9 .2 5 4
1#
2#
User
Device
Figure 56
Transparent
Transparent
Transparent
Transparent Serial
Serial
Serial
Serial Port
Port
Port
Port Application
Application
Application
Application
For left side USR-WIFI232-A/B/C module, configured as AP mode and use default SSID and IP
address, network protocol configured as TCP/Server mode, and protocol port ID: 8899.
For right side USR-WIFI232-A/B/C module, configured as STA mode and setting the same SSID
（
”USR-WIFI232-A/B_xxxx” for this example
）
with left side USR-WIFI232-A/B/C module, enable
DHCP network and network protocol configured as TCP/Client mode, protocol port ID: 8899. Target IP
address part setting the same IP address with left side USR-WIFI232-A/B/C module (“10.10.100.254”
for this example).
When right side USR-WIFI232-A/B/C boot up, it will find wireless AP (SSID
：
USR-WIFI232-A/B_xxxx
for this example) and open TCP/Client network protocol to connect with left side module’s TCP/Server.
All these operation will be automatic and after finished, the two user devices connected to USR-
WIFI232-A/B/C module through serial port can communicate each other and think the connection
between them is fully transparent.
Note:
Note:
Note:
Note: LAN
LAN
LAN
LAN IP
IP
IP
IP address
address
address
address and
and
and
and WAN
WAN
WAN
WAN port
port
port
port should
should
should
should in
in
in
in different
different
different
different segment,
segment,
segment,
segment, as
as
as
as picture
picture
picture
picture shown,
shown,
shown,
shown, we
we
we
we change
change
change
change
to
to
to
to 10.10.99.254
10.10.99.254
10.10.99.254
10.10.99.254 (the
(the
(the
(the address
address
address
address get
get
get
get from
from
from
from left
left
left
left module
module
module
module WAN
WAN
WAN
WAN port
port
port
port DHCP
DHCP
DHCP
DHCP is
is
is
is 10.10.100.xxx)
10.10.100.xxx)
10.10.100.xxx)
10.10.100.xxx)
6.2.4
Wireless Data Acquisition Card Application
For this wireless data acquisition card application, one PC works as data server and every data
acquisition card connects with a USR-WIFI232-A/B/C module to support wireless connection function.
