Cermetek Microelectronics, Inc Page 20 of 42
Document NO. 607-00xx Revision A (12/13)
Serial Port Parameters (AT+UART)
Baud Rate
Data Bit
Parity (Check) Bit
Stop Bit
Hardware Flow Control
Work Mode Selection (AT+TMODE)
Transparent transmission
Transparent transmission mode is illustrated in Figure 18. The CH232BGN modules serve as a
wireless serial link. Data is sent between user devices without modification.
Figure 18: CH232BGN Transparent Transmission Operation
2.10. Parameters Configuration
CH232BGN module supports two methods of configuring parameters; Over the web and through
the serial port using AT+ commands. The user configures the CH232BGN on-line through an
integrated web page. When the module is connected to a wireless network, parameters can be
configured from a PC connected to the same wireless network. Configuration through the serial
port is done with AT+ commands. See Section 4 for full descriptions of the AT+ commands.
