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Bluetooth V5.0 BLE RS-422/485 adapter (4 dBm)
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User Manual
New Bluetooth V5.0 BLE RS-422/485 adapter
Model: S2B5485E (External Dipole Antenna)
S2B5485I (Internal Antenna) (Option)
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)
Configuration Interfaces: (Please choose 1 of 3 ways)
1. DIP Switch on the Rear side (Default, please refer the pin no. on the above
Configuration APP:
1. Baud rate, Parity, Stop bit, Flow control
2. Data communication test
3. Enable central to link peripheral
Male DB9:
Top View:
Rear View:
Test APP
The Bluetooth V5.0 BLE RS232 adapter supports
the iOS, Android, Windows or etc.. The central or
peripheral will be configured by the command, DIP
switch or APP. The HW or FW will be customized
by the requirements, please contact us. The
Modbus of RS-485 support the check sum on
slave side.
2. AT command via RS-232 interface (Please check the user manual)
3. APP via GATT service
Test Video
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)