Serial Bluetooth Adapter


Model: UCBT232B
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If you need to communicate with a RS232 serial device but don't want to use cables, then you can use this serial Bluetooth adapter to create a rock-solid and secure wireless communication link for up to 300 feet.
A wireless link can be created between a computer and a single serial device or between a computer and multiple serial devices or, since this serial Bluetooth adapter does not require drivers, you can even setup a link between two or more serial devices, without using a computer. See our setup examples for the serial Bluetooth adapter.

Another great feature of this serial Bluetooth adapter is that you can connect to it with built-in Bluetooth or if your computer/device does not have built-in Bluetooth you can connect to it by using a standard external USB Bluetooth dongle. Either way the setup procedure is easy with Windows 7's built-in management software or any third-party Bluetooth management software such as BlueSoleil or Toshiba BT Stack.
If you pair two serial Bluetooth adapters directly with each other then no Bluetooth management software is needed. This is also referred to as a direct wireless cable replacement.

This serial Bluetooth adapter has several power options. It can be powered by either the included USB cable, but it can also be powered by an external mini USB power supply. Alternatively this adapter can be powered by an external 3.7 - 5.0V battery. Battery connection cable is included, but the battery is not included. Finally this adapter can also be powered through pin 9 at the serial DB9 connector.

A large number of parameters such as baud rate, data bits, security, master/slave settings, flow, PIN and many other parameters can be adjusted to suit your needs. Please see the datasheet for all parameters. DTE/DCE is set by a slide switch on the side of the adapter.

The parameters are programmed by standard AT commands with a terminal program such as Hyper Terminal or TeraTerm however a nice feature is that by enabling a specific parameter this adapter can also be programmed via Bluetooth.

You can use this serial Bluetooth adapter with the majority of serial devices, as long as the serial device supports the SPP (Serial Port Profile) profile. Most industrial and commercial serial devices such as CNC machines, PLC's, manufacturing machinery, scales, scanners and printers support this profile.

This serial to Bluetooth adapter can be used in pairs as a direct cable replacement:
serial bluetooth adapter setup 1

or as a single adapter creating a wireless link with a Bluetooth enabled device or PC:
serial bluetooth adapter setup 2

Overall features
  • Works with any operating system as long as the device/computer supports SPP (Serial Port Profile)
  • Four power options (USB, battery, power supply or DB pin 9)
  • Communication range up to 330 feet (100 meters)
  • Configurable by Terminal software
  • LED indication lights
  • Connects up to 7 pairs to same unit without interference

Model number UCBT232B
Operating system Windows 10, 8, Windows 7, Vista, XP, 2000, 98, Linux, Mac.
Processor CSR BC04
Serial interface RS232 (TX and RX), Female D-Sub 9-pin
Baud rates 1200, 4800, 9600, 19200, 38400, 57600, 115200
Stop bits 1 or 2
Data bits 7 or 8
Parity None, odd, even
Operating distance Up to 330 feet (100 meters)
Bluetooth stack Serial Port Profile (SPP)
PIN PIN code available for pairing
Flow control CTS/RTS configurable by software
NMEA 183 compatible Yes
Can pair while serial interface receives data Yes
Full duplex RS232 Yes, can send and receive simultaneously both when connected over Bluetooth and when used in pairs.
Parameter configuration Through the serial port or over Bluetooth
Bluetooth standard V2.0 Class 1, + EDR
Frequency range 2.4GHz - 2.4835 GHz ISM Band
Hopping 1.600/sec, 1MHz channel space
Modulation GFSK-1, DQPSK-2, 8-DPSK-3 Mbps
Tx power Max. 18dBm (class 1)
Rx sensivity -86 dBm typical
Antenna Internal chip
Antenna gain max 1 to 2 dBi
DEC/DTE Manual switch
Power +5 to 5.5VDC powered by:
Option 1: USB cable (included)
Option 2: Pin 9 on DB9 connector
Option 3: External battery (not included)
Option 4: Mini USB adapter (not included)
Current draw Max 90mA
Indication LEDs TX, RX and Power
Operating temp. -20C ~ 75C
Dimensions 35 x 45 x 15 mm
Certifications CE, FCC
Warranty 2-year Limited Warranty
ECCN 4A994.a
Schedule B 8471.80.1000
HTS 8517.18.0050

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

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