UConnect S2B2232FIV2 Bluetooth RS232 Serial Adapter User Manual

June 5, 2024
UConnect

Bluetooth RS-232 adapter user manual
2022.04.13
Bluetooth V2.1 SPP RS-232 Serial Adapter
Model: S2B2232FIV2 (Internal antenna, Female DB9)

Package content:

Bluetooth RS-232 adapter

White Box Dimension: 11 x 6 x 5 (cm) Total Package Weight: 95 g (Internal antenna)

Package Contents:

  •  Bluetooth RS-232 adapter x 1
  • A4 User manual x 1
  • Mini USB Cable x 1

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 mode

Bluetooth RS‐232 adapter user manual
2.2 Rear Side:

Power supply:

3.1 Voltage: 5~28 VDC, Don’t exceed the limit.
3.2 There’re 3 ways to power the adapter: Mini USB, 2P Terminal Block (Blue), and pin9 of DB9, please choose one. Don’t power the adapter with more than one source.
3.3 The mini USB to type A cable is inside the standard package.

Guide:

4.1 Default value:

  • Baud rate: 9,600 bps
  •  Data bit: 8
  •  Parity: none
  •  Stop bit: 1
  •  Flow control: none
  •  Device Name: 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 command “role=m”.

4.2 If the PC is not built in the Bluetooth, please source the Bluetooth USB dongle or use the same adapter set as the “master”. The built-in Bluetooth of NB supports class 2  only, 10 meters. If you need more than 10 meters in 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 sliding the switch, you can set the adaptor either as a DTE (towards antenna connector) or a DCE (towards  DB9 connector). In most situations, switch to “DTE” if connect with the remote device.
4.4 Slave mode (default): Start the searching from the PC or smartphone and connect it.
4.5 Reset Button: Pressed with a clip or pin into the hole on the top cover. Restore the factory settings (after over three seconds’ press).

Setup Command set (any capital or lowercase combination is available)

Bluetooth RS‐232 adapter user manual

Command Value Description
? List all the command set
ADDRESS=? This command is used to display the Bluetooth address of the

local

adaptor. Ex. 3C:61:A8:60:BA:72

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 the auto-connection feature. It is available only when the adaptor is in the master role. All the slaves with the head of the mac. 0012, 0019, or 3C61 will be connected w/o authenticating the pin value. Refer: to page 6 section 7.
| Y| The Master role adapter will connect the latest paired Bluetooth device

automatically.

(Default)| N| The user will connect the Bluetooth device manually.
| ?| Inquire about the current setting.
BAUD=| | This command is used to specify the baud rate of the COM port.
The command will need a 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 about 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 about 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 typing 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 replies “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.
| 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 about the current setting.
FLOW=| | This command enables or disables flow control signals (CTS/RTS) of the UART port. Note, that the setting is not affected by DEFAULT. The command will need a 1-second delay.
(Default)| N| Disable flow control.
| Y| Enable flow control.
| ?| Inquire about the current setting
KEY=| | The key value will be created by the smartphone or Win10 devices when paired with the slave adapter. Please type the same 6 numbers shown on the smartphone or Win10 devices within 15 seconds.
(Default)| N|
| Y|
| ?|
MAC=| | The mac. The address will be customized by the user. The master will connect the 2nd slave with the same mac. address if the 1st 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. Max. 32 bytes. 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 a length from 5 to 32.
| R| Restore the default settings name=“Serial Adapter”.
| ?| Inquire about the name of the local adaptor.
ONE=| | The master will link with one pair 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”. Refer page 6 section 7.
(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 about the current setting
PARITY=| | This command is used to specify the parity bit setting of the 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 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)| (None)| The default is not authenticated by default.
| xx….xx| “xx….xx” is a 4~32 digit string or English character (no matter the capital or lower case)
| ?| Inquire about the current PIN.
PROMPT=| | The command is used to decide whether result messages are prompted when Setup commands are executed.
(Default)| Y| Prompt result messages.
| N| Not prompt any 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 a 1-second delay.
| M| Set the adaptor to the master role. Refer: to page 6 section 7.
(Default)| S| Set the adaptor to the slave role.
| ?| Inquire about 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=| | Enquire all the current settings of the adapter.
| ?| Display the current setting of the adapter
STOP=| | This command is used to specify one or two stop bits of the COM port.

The command will need a 200ms delay.

(Default)| 1| One-stop bit.
| 1.5| One point five-bit
| 2| Two stop bits.
| ?| Inquire about the current setting.
VERSION=?| | This command is used to inquire about the firmware version.

Remark: If you need to customize the command, please call.

RS232 Interface

6.1 Pin-out: Female type

6.2 Signals:

Pin| Signal| DTE Direction| DCE Direction| Description
---|---|---|---|---
1| N/A| | |
2| TxD| Input| Output| Received data
3| RxD| Output| Input| Transmitted data
4| N/A| | |
---|---|---|---|---
5| GND| | | Ground
6| N/A| | |
7| CTS| Output| Input| Request to send (Default)
8| RTS| Input| Output| Clear to send
9| VCC| | | Power Input (5~40 VDC)

7. Master mode applications: Set one adapter as the master role by the command “role=m”. The “auto=y” and “one=y” command is available under the role=m. The “one=y” command is available under the “auto=y”. The pin code must be the same for the paired master and slave.
7.1 “AUTO=Y”: Auto link any slave with the start mac. Address “0012” or “0019”. The “0018” is not available. The master will re-link other slaves when the master or slave restarts. The “auto=y” command is available under the “role=m”.

7.2 “ONE=Y”: The master will link with the first link slave after the restart. It will auto-link any slave with the start mac. Address “0012” or “0019”. The “0018” is not available. The master will link with the new slave when reset to the default value. The “one=y” command is available under the “role=m” or “auto=y”
Bluetooth RS‐232 adapter user manual

Configuration and test:

9.1 PC software: Please contact the supplier.

9.2 3rd party Terminal: Download the “Teraterm” software to set the AT command or test the data transmission. ASCII characters only.
Download link: https://ttssh2.osdn.jp/index.html.en
Bluetooth RS‐232 adapter user manual

9.3 3rd party Terminal: Download the “Accessport” software to set the AT command or test the data transmission. ASCII or Hex characters is available.
Download link: http://www.sudt.com/en/ap/

9.4 Smartphone:

9.4.1 APP Download: Android:

|
---|---
https://play.google.com/store/apps/details?id=com.uconnect.ble5serial| https://apps.apple.com/us/app/ble2serial/id1593360257?l=zh

Bluetooth RS‐232 adapter user manual
2022.04.13
Federal Communications Commission (FCC) Statement:
You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. this device may not cause harmful interference, and
  2. this device must accept any interference received, including interference that may cause undesired operation of the device. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
    – Reorient or relocate the receiving antenna.
    – Increase the separation between the equipment and receiver.
    – Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
    – Consult the dealer or an experienced radio/TV technician for help.

FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

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