BT RS-232 Series User manual

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
1
Bluetooth V2.1 SPP RS-232 Serial Adapter V2.0
Model: S2B2232IV2 (Internal antenna, Male DB9)
Model: S2B2232EV2 (External antenna, Male DB9)
1. Package content:
Bluetooth RS-232 adapter
White Box Di ension: 11 x 6 x 5 (c )
Total Package Weight: 95 g
(Internal
antenna) 105 g (External antenna)
Package Contents:
Bluetooth RS-232 adapter x 1
A4 User anual x 1
Mini USB Cable x 1
2. Profile:
2.1 Top view:
LED Status Description
Red LED solid on Power On
Blue LED solid on Bluetooth Link
Blue LED flash Bluetooth not Link
Both LED off DFU ode
DB9 (Male)
Mini USB (Power)
▲
▲▲
▲ (5~40 VDC)
▼ GND
Reset to Default
LED:
Link: Blue
PWR/Data: Red
Radio Frequency area:
Don’t cover any etal
aterial or painting.
(Internal antenna type)

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
2
2.2 Rear Side:
3. Power supply:
3.1 Voltage: 5~40 VDC, Don’t exceed the limit.
3.2 There’re 3 ways to power the adapter: Mini USB, 2P Ter inal Block (Blue) and pin9 of DB9,
please choose one. Don’t power the adapter by more than one source.
3.3 The ini USB to type A cable is inside the standard package.
4. Guide:
4.1 Default value:
Baud rate: 9,600 bps
Data bit: 8
Parity: none
Stop bit: 1
Flow control: none
Device Na e: Serial Adapter
Pin: (None), The value will be authenticated by each other for the S2B2232FIV2 or
S2B2232FEV2 only.
Mode: Default is “Slave”, The adapter can be configured the “Master” by the co and
“role= ”.
4.2 If the PC not built in the Bluetooth, please source the Bluetooth USB dongle or use the sa e
adapter set as the “ aster”. The built in Bluetooth of NB supports class 2 only, 10 eters. If you
need 100 eters range, you will connect two adapters.
4.3 Slide Switch of “DTE/DCE”
Use the slide switch to swap the “TX/RX” and “CTS/RTS”. By slide the switch, you can set the
adaptor either as a DTE (towards antenna connector) or a DCE (towards DB9 connector). In
ost situation, switch to “DTE” if connect with the re ote device.
4.4 Slave ode (default): Start the searching fro the PC or s artphone and connect it.
4.5 Master ode: Set by the co and “search=y” to find the Bluetooth slave devices and connect.
4.6 Reset Button: Pressed with a clip or pin into the hole on the top cover. Restore the factory
settings (after over three seconds’ press).
▲ DCE
▼ DTE

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
3
5. Setup Command set (any capital or lowercase combination is available)
Command
Value
Description
?
List all the command set
ADDRESS=? This command is used to display the Bluetooth address of the local
adaptor.
AT Check the connection status between control terminal and the RS-232
adapter. Response: “OK” when the connection is ok. Response:
“ERROR” when the connection is not ok.
AUTO= This command is used to enable/disable auto-connection feature. It is
available only when the adaptor is in the master role. All the slaves with
the same pin code will be connected.
Y The Master role adapter will connect the latest paired Bluetooth device
automatically.
(Default) N The user will connect the Bluetooth device manually.
? Inquire the current setting.
BAUD= This command is used to specify the baud rate of COM port.
The command will need 200 ms delay.
1200 1200 bps
2400 2400 bps
4800 4800 bps
(Default) 9600 9600 bps
19200 19200 bps
38400 38400 bps
57600 57600 bps
115200 115200 bps
230400 230400 bps
? Inquire the current baud rate.
BIT= Data bit
5 5 data bits
6 6 data bits
7 7 data bits
(Default) 8 8 data bits
? Inquire the data bit setting.
CONNECT= This command is used to
establish a connection manually. It is available
only when the adaptor is in the master role.
1~8 Connect the adaptor to a Bluetooth device in the neighborhood found
through “SEARCH=?”
xxxxxxxxxxxx
Connect the remote adapter by type the MAC address directly without
searching.
? Display the MAC address of the latest paired device.
DEFAULT=Y This command is used to restore the default settings and originate a
warm start.
DFU= Y Switch to the firmware upgrade procedure, please disconnect the COM
port when the adapter reply “OK”. Send the firmware file by the
“Accessport” software, please check the link on page 6 section 9.3.
ECHO= This command is used to specify whether the adaptor echoes
characters received from the UART back to the DTE/DCE.

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
4
N Command characters received from the UART are not echoed back to
the DTE/DCE.
(Default) Y Command characters received from the UART are echoed back to the
DTE/DCE.
? Inquire the current setting.
FLOW= This command enable or disable flow control signals (CTS/RTS) of the
UART port. Note, the setting is not affected by DEFAULT.
The command will need 1 second delay.
(Default) N Disable flow control.
Y Enable flow control.
? Inquire the current setting
KEY= The key value will be created by the smart phone or Win10 devices
when pairing with the slave adapter. Please type the same 6 numbers
shown on the smart phone or Win10 devices within 15 seconds.
(Default) N
Y
?
MAC= The mac. Address will be customized by the user. The master will
connect the 2
nd
slave with the same mac. address if the 1
st
slave
damaged.
xxxxxxxxxxxx The head of the address 0012, 0018, 0019 is available only.
?
NAME= This command is used to specify a name for the adaptor.
You can specify a friendly name using 0 to 9, A to Z, a to z, space and
–, which are all valid characters. Note that “first space or -, last space or
– isn’t permitted”. The default name is “Serial Adaptor”.
(Default) Serial
Adapter
Default device name
xx….xx “xx….xx” is a character string with the length from 2 to 30.
R Restore the default settings name=“Serial Adapter”.
? Inquire the name of the local adaptor.
ONE= The master will link with one paired or any nearby slave automatically.
All the slaves with the same pin code will be connected. Once
connected, the master will not change the paired slave until reset to
default from the slave. The command is available under the command
“auto=y”.
(Default) N The master will link with any nearby slave automatically.
Y The master will link with the paired slave which is linked by the master
before automatically.
? Inquire the current setting
PARITY= This command is used to specify parity bit setting of COM port.
(Default) N None parity bit
O Odd parity
E Even parity
?
PIN= This command is used to specify a PIN. The default PIN is (None) and
the length is not smaller than 4. The master will connect the slave first

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
5
and check the pin value sent from the slave. The command is available
for the S2B2232FE(I)V2 only. The master will connect the slave if the
pin value is the same between both.
(Default) 1234
xx….xx “xx….xx” is a 4~16 digit string or English character (in capital or lower
case)
? Inquire the current PIN.
PROMPT= The command is used to decide whether result messages are prompted
when Setup commands are executed. The result messages are:
OK/ERROR for command execution, or CONNECT/DISCONNECT/Try
Connect Device for connection status.
(Default) Y Prompt result messages.
N Not prompt result messages.
? Inquire the current setting.
ROLE= This command is used to specify whether the adaptor is in the master
or slave role. If the device role is changed, the adaptor will reboot and
all paired addresses will be cleared. The command is available when
the adapter is in DIP=N status. The command will need 1 second delay.
M Set the adaptor to the master role.
(Default) S Set the adaptor to the slave role.
? Inquire the current role of the adaptor.
SEARCH=? This command is used to search for any Bluetooth device in the
neighborhood within one minute. If any device is found, its name and its
12-digit-address will be listed. The search ends with a message “Inquiry
ends. xx device(s) found.” This command is available only when the
adaptor is in the master role by manual.
STATUS= Inquire all the current setting of the adapter.
? Display the current setting of the adapter
STOP= This command is used to specify one or two stop bits of COM port.
The command will need 200ms delay.
(Default) 1 One stop bit.
1.5 One point five bit
2 Two stop bits.
? Inquire the current setting.
VERSION=? This command is used to inquiry the firmware version.
Remark: If you need to customize the command, please call.
6. RS232 Interface
6.1 Pin-out: Male type
2: RX 7: RTS
3: TX 8: CTS
5: GND 9: VCC

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
6
6.2 Signals:
Pin Signal DTE Direction DCE Direction Description
1 N/A
2 RxD Output Input Transmitted data
3 TxD Input Output Received data
4 N/A
5 GND Ground
6 N/A
7 RTS Input Output Clear to send
8 CTS Output Input Request to send (Default)
9 VCC Power Input (5~40 VDC)
7. Master ode applications: Set one adapter as the aster role by the co and “role= ”. The
“auto=y” and “one=y” co and is available under the role= . The “one=y” co and is available
under the “auto=y”. The pin code ust be the sa e for the paired aster and slave.
7.1 “AUTO=Y”: Auto link any slave with the start ac. Address “0012” or “0019”. The “0018” is not
available. The aster will re-link other slaves when the aster or slave restart. The “auto=y”
co and is available under the “role= ”.
7.2 “ONE=Y”: The aster will link with the first link slave after restart. It will auto link any slave with
the start ac. Address “0012” or “0019”. The “0018” is not available. The aster will link with the
new slave when reset to default value. The “one=y” co and is available under the “role= ” or
“auto=y”.

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
7
7.3 Bridge: Extend the trans ission range.
9. Configuration and test:
9.1PC software: Please contact the supplier.
9.2 3
rd
party Ter inal: Download the “Terater ” software to set the AT co and or test the data
trans ission. ASCII characters only.
Download link: https://ttssh2.osdn.jp/index.ht l.en

BT V2.1 RS-232 adapter user manual V2.2_Male 2021.12.15
8
9.3 3
rd
party Ter inal: Download the “Accessport” software to set the AT co and or test the data
trans ission. ASCII or Hex characters is available.
Download link: http://www.sudt.co /en/ap/
9.4 S artphone:
Device List Ter inal Configuration Serial Port
9.4.1 APP Download: Android: iOS: