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Bluetooth V5.0 BLE RS-232 adapter (4 dBm)
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User Manual
New Bluetooth V5.0 BLE RS-232 adapter
Model: S2B5232E (External Ant.)
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/even/odd
4. Stop bit: 1/2
5. Data bit: 8
6. Range: 300 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 female
9. Antenna Gain: max. 2 dB
10. Profiles: GATT Serial
11. Frequency: 2.400 to 2.4835 GHz
12. Tx. Power: Max. 4 dBm
13. Rx. Sensitivity: -9
6 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 is designed by
NRF52832 and
will link with OS platform, ex. iOS, Android,
Windows or etc.. The data bit, baud rate, parity, stop bit,
flow control, central or peripheral will be configured by the
command, DIP switch or APP. The adapter will support small
to medium quantity of data.

The Bluetooth V5.0 BLE support the GATT service. The
profile is different with the V2.1 SPP, serial port profile. It will
need the APP. The sample code will be offered with the
2. AT command via RS-232 interface (Please check the user manual)
3. APP via GATT service
Test Video