At Command Mode; Wireless Characteristics; Automatic Frequency Selection Function; Security Mechanism - Waveshare UART-WIFI232-B2 User Manual

UART-WIFI232-B2 User Manual
Set by AT command:
AT+TMODE=modbus
There are also corresponding settings pages in the webpage:

6.1.5 AT COMMAND MODE

In AT command mode, users can query the current status of WIFI serial server or set the
parameters of WIFI serial server by sending AT command.

6.2 WIRELESS CHARACTERISTICS

6.2.1 AUTOMATIC FREQUENCY SELECTION FUNCTION

When UART-WIFI232-B2 works in STA mode, UART-WIFI232-B2 will automatically adjust to the
same channel as AP according to the wireless channel of AP, and access it.
When UART-WIFI232-B2 works in AP mode, it can be set to automatic frequency selection mode,
so when UART-WIFI232-B2 is started, a better wireless channel will be selected according to the
surrounding environment.

6.2.2 SECURITY MECHANISM

The UART-WIFI232-B2 serial server supports a variety of wireless network encryption methods, which
can fully guarantee the safe transmission of data, including:
1.WPA-PSK/TKIP
2.WPA-PSK/AES
3.WPA2-PSK/TKIP
Figure Modbus RTU<=>Modbus TCP
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