Ubiquitous Connect
©2021 All rights reserved by Uconnect
Bluetooth V2.1 & V5.0 Dual mode BLE RS-232 adapter
Send Inquiry
User Manual
Bluetooth V2.1 & V5.0 Dual mode BLE RS-232 adapter
Model: S2DB232E (External Antenna)
Model: S2DB232I (Internal Antenna)
Configuration Interfaces: (Please choose 1 of 3 ways)
1. DIP Switch on the Rear side (Default, please refer the pin no. on the
above picture.)
Configuration APP:
1. Baud rate, Parity, Stop bit, Flow control
2. Data communication test
3. Enable central to link peripheral
Male DB9:
Top View:
Test APP
2. AT command via RS-232 interface (Please check the user manual)
3. APP via GATT service
Test Video
BLE Central, BLE peripheral, RS-232, Serial port converter, BLE data transmission
UUID_1800_SERV = ("00001800-0000-1000-8000-00805F9B34FB")
 UUID = 2A00, Device name, Default: BLE232
UUID_180A_SERV = ("0000180A-0000-1000-8000-00805F9B34FB")
 UUID= 2A26, Firmware version, Format: x.x.x, ASCII/read only
 UUID= 2A24, BLE version, Format: x.x, ASCII/read only, Value: 4.2 or 5.0
UUID_BLE_SERV = ("0003ABCD-0000-1000-8000-00805F9B0131") (Self defined UUID)
 UUID_BLE5DATA = ("00031201-0000-1000-8000-00805f9b0130"), Data from
BLE232_TxData (Notification)
 UUID_BLE5SENT = ("00031202-0000-1000-8000-00805f9b0130"),//Data to
BLE232_RxData max244bytes/package(write only)
 UUID_BLE5ADDR = ("00031204-0000-1000-8000-00805f9b0130"), Target Peripheral
Mac. Address, 6bytes,(read/write)
 UUID_BLE5NAME = ("00031205-0000-1000-8000-00805f9b0130"), Device name, Max.
15bytes, UTF-8,(read/write)
 UUID_BLE5PIN  = ("00031206-0000-1000-8000-00805f9b0130"), Pin code, 6bytes,
 UUID_BLE5RBT  = ("00031210-0000-1000-8000-00805f9b0130");Reboot, 2bytes,
 UUID_BLE5CONF = ("00031203-0000-1000-8000-00805f9b0130"), Configuration,
4bytes, (read/write)
Byte0 (Read Only)
Product model
Baud Rate
Port setting
0xAA: RS232
0xAF: RS485/422
unit: bps
0x00: 1200
0x01: 2400
0x02: 4800
0x03: 9600
0x04: 19200
0x05: 38400
0x06: 57600
0x07: 115200
0x08: 230400
  bit 0: Parity (0: NONE 1: EVEN)
bit 1: Flow control (0: Disabled
1: Enabled) (for RS232 model
bit 2: N/A
bit 3: Port Type (0: RS485 1:
RS422) (Available on RS485
model only)
bit 4: BLE Role (0: Peripheral 1:
Central) (indication Only)
bit 5: ControlSet (0: set by APP
or command 1: set by 9P switch)
(indication Only)
1. Baud Rate: Supports 1.2/2.4/4.8/9.6/19.2/38.4/57.6/115.2/230.4/460.
8/921.6 Kbps (Default: 9600 bps)
3. Parity: none(Default)/even (w/o Odd)
4. Stop bit: 1 only
5. Data bit: 8 only
6. Range: 70 m ,in open space for reference only
7. Signal: TxD, RxD, GND, CTS/RTS (H/W Flow control)
8. RS-232 Interface: D-SUB 9-pin male
9. Antenna Gain: max. 2 dBm
10. Profiles: GATT Serial
11. Frequency: 2.400 to 2.4835 GHz
12. Tx. Power: Max. +4 dBm
13. Rx. Sensitivity: -96 dBm typical
14. Power Supply: 5~40 VDC
15. Current Consumption: max. 30 mAh (for reference)
16. Operation Temperature: –40 °C to +85 °C
17. Dimensions: 81.6 mm (L) x 31.75 mm (W) x 17 mm (H)
18, Re-chargeable battery is option
The Bluetooth V5.0 Dual mode BLE RS232 adapter
supports the Bluetooth V2.1 SPP or V5.0 BLE
profile. The iOS, Android, Windows OS is available.
The central, master, peripheral or slave is
configured by the command, DIP switch or APP. The
HW or FW will be customized by the requirements,
please contact us.