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Serial Bluetooth 5 Smart® Adapter - RS232
Low Energy BLE - Long Range

  • Model: S2B5232E
  • In Stock


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This serial Bluetooth adapter is similar to our USBLE232DEXA adapter; the main difference is that this adapter is built around a Nordic NRF52832 processor which is Bluetooth 5 capable.

This adapter is a Bluetooth version 5 Low Energy (BLE) adapter, also commonly called Bluetooth Smart®. It will allow you to communicate with most serial RS232 devices using a Bluetooth Smart® enabled device such as an iPad/iPhone, Android, Windows tablet or any other Bluetooth Smart enabled device.
Notice that this adapter REQUIRE a Bluetooth Smart® compatible device / application to be able to connect and transfer data with iOS, Android and Windows.
If you don't have a Bluetooth Smart® / Bluetooth BLE device then you can use one of our standard SPP (Serial Port Profile) v2.0 Bluetooth serial adapters instead.

Bluetooth Low Energy 4.0 or higher (BLE) / Bluetooth Smart® is supported by most newer tablets, phones, computers and other Bluetooth enabled devices, including the following devices: Android 4.3+, iPad 3+, iPhone 4S+ and iPad Mini.
The following operating systems support Bluetooth Smart®: iOS 5 and later, Windows Phone 8.1, Windows 8 and later, Android 4.3 and later, BlackBerry 10, Linux 3.4 and later through BlueZ 5.0.

This Bluetooth Smart® wireless serial adapter has a maximum communication range of up to 160 feet (50m) and applications includes automation, home applications, automotive, laboratory, office use and many more, only your imagination is the limit.

The adapter can be configured as a central or peripheral (master or slave) device. It also has multiple other port parameters and functions such as baud rate, flow control, parity, data bits and status request which can be configured/requested by DIP switches or through the COM port using AT commands and a terminal program.
Alternatively the parameters can also be configured using a free downloadable app for either iOS or Android.

Overall features
  • Bluetooth Smart® compatible
  • Supports Bluetooth Low Energy 5 (BLE)
  • DIP switches for most settings
  • iOS and Android app available for configuration
  • Can be configured via COM port with AT commands
  • Works as a peripheral or central device
  • Can be powered by: included mini USB cable
  • External antenna for optimal range
  • Communication range up to 50m (line-of-sight)
  • DCE/DTE controlled by switch
  • LED control lights
  • Supports CTS/RTS flow control
  • Works with most serial RS232 devices
Included items
  • Serial Bluetooth adapter
  • Mini USB cable (for power)
  • Datasheet


Useful optional accessories
(not included)

Battery pack
Rechargeable battery pack

null modem adapter
Null modem adapter
Part number S2B5232E
Operating systems iOS 5 and later, Windows Phone 8.1, Windows 8 and later, Android 4.3 and later, BlackBerry 10, Linux 3.4 and later through BlueZ 5.0.
Processor Nordic NRF52832
Data payload 251 bytes
Interface type RS232
Mode Central or Peripheral (Master or Slave)
Works with iPad/iPod? Yes
Baud Rate 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400
Parity None, even
Stop bits 1
Data bits 8
Flow control None, CTS/RTS
Operating distance Up to 50m (line-of-sight) under ideal conditions
LED lights TX, RX, Link and Power
DEC/DTE Manual switch
Parameters configurable by - Over the air by iOS and Android app
- Via COM port by AT commands
- DIP switches
RS232 Signals TX, RX, CTS, RTS, GND
Works with NMEA 0183 Yes
Beacon reader No
No. of simultaneous connected peripherals 1
Serial port 1-port male D-sub 9-pin
Bluetooth version 5
Programming interfaces GATT / UUID
Frequency range 2.4GHz ISM ( 2.40000 – 2.4835GHz)
TX Power Max. 4 dBm
RX Sensitivity -96 dBm typical
TX current consumption 16.6 mA (radio only, 4 dbm)
Antenna 2.4Ghz, 2dBi di-pole with Reverse Polarity SMA (RP-SMA) male connector (inside threads / center receptacle)
Antenna connector type on adapter Reverse Polarity SMA (RP-SMA) female connector (outside threads / male pin)
Antenna Gain max. 2 dB
Power supply Mini USB (5VDC)
Screw terminals (5 - 40VDC)
DB9 pin 9 (5 - 40VDC)
Operating temp. -40°F to 185°F (-40°C to 85°C)
Dimensions 87mm x 34mm x 18mm
Total package weight 105g
Certifications CE, FCC, Rohs

For alternative wireless serial solutions please see our full selection of wireless RS232 adapters.


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