USR-WIFI232-A/B/C User Manual
http://www.usriot.com
Jinan USR IOT Technology Limited
Page 51 of 93
5.2.1.1 Switch to Configuration Mode
Two steps to finish switching from transparent transmission mode to configuration mode.
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UART
UART
UART
UART input
input
input
input “
“
“
“+++
+++
+++
+++”
”
”
”,,,, after
after
after
after module
module
module
module receive
receive
receive
receive “
“
“
“+++
+++
+++
+++”
”
”
”,,,, and
and
and
and feedback
feedback
feedback
feedback “
“
“
“a
a
a
a”
”
”
” as
as
as
as confirmation.
confirmation.
confirmation.
confirmation.
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UART
UART
UART
UART input
input
input
input “
“
“
“a
a
a
a”
”
”
”,,,, after
after
after
after module
module
module
module receive
receive
receive
receive “
“
“
“a
a
a
a”
”
”
” and
and
and
and feedback
feedback
feedback
feedback “
“
“
“+ok
+ok
+ok
+ok”
”
”
” to
to
to
to go
go
go
go into
into
into
into AT+
AT+
AT+
AT+
instruction
instruction
instruction
instruction set
set
set
set configuration
configuration
configuration
configuration mode.
mode.
mode.
mode.
Figure 45
Switch
Switch
Switch
Switch to
to
to
to Configuration
Configuration
Configuration
Configuration Mode
Mode
Mode
Mode
Notes:
Notes:
Notes:
Notes:
1. When user input “+++” (No “Enter” key required), the UART port will display feedback
information “a”, and not display input infor++” as above UART display.
2. Any other input or wro ng step to UART port will cause the module still works as original mode
(transparent transmission).
5.2.2
AT+ Instruction Set Overview
User can input AT+ Instruction through hyper terminal or other serial debug terminal, also can
program the AT+ Instruction to script. User can also input “AT+H” to list all AT+ Instruction and
description to start.