Switch To Configuration Mode; At+ Instruction Set Overview - Jinan USR IOT Technology USR-WIFI232-A2 User Manual

4.13.1.1 Switch to Configuration Mode

Two steps to finish switching from transparent transmission mode to configuration mode.
UART input "+++", after module receive "+++", and feedback "a" as confirmation.

UART input "a", after module receive "a" and feedback "+ok" to go into AT+

instruction set configuration mode.
Notes:
1. When user input "+++" (No "Enter" key required), the UART port will display feedback
information "a", and not display input information"+++" 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).

4.13.2 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.
Jinan USR IOT Technology Limited
USR-WIFI232-A2 User Manual
Switch to Configuration Mode
Figure 38
Page 44 of 76
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