The BLE-USB module is small-sized wireless Bluetooth low energy (LE) converter based on the Bluetooth 4.0 standard that allow USB interface to be converted to Bluetooth LE piconet network. The BLE-USB has two transmission modes – advertisement and connection mode. Users not only can send advertising packet in the advertisement mode but also can send connection packet in the connection mode. It supports different roles in each transmission mode. One is broadcaster and observer in advertisement mode, and the others is central and peripheral in connection mode. User can use AT command to setup the BLE-USB. The AT command not only can set role of Bluetooth LE, but also it can set some connection parameters (e.g. RF power level, broadcast parameters and slave amount).

The BLE-USB also provide slave security mechanism. The mechanism can obstruct illegal master, and the slave will ignore connection request from illegal master. In addition, ICPDAS provides software utility to easily configure and test the BLE-USB modules via USB.


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  • Frequency: ISM 2.4 GHz
  • Standard: Bluetooth 4.0
  • Fully Compliant with the USB 1.1/2.0 (High Speed)
  • Baud Rate :9600~115200 bps
  • Operating Temperatures: -40 °C ~ +80 °C
  • Supports multiple connections – Max slave is 3
  • Supports two types of communication- advertisements and connection
  • Provides AT commands to setup the module
  • Provides status / RF link indication LEDs
  • GUI Configuration Software (Windows Version)
  • No External Power Supply and Antenna required


ICP DAS provides the BLE-USB configuration utility for Windows OS.
  • Parameters configuration
  • Firmware upgrade
  • Easy test to transmit/receive
  • Setting files management

Hardware Specifications

LED indication Status / RF link
RF Specification
Frequency Band 2.4 GHz ISM(2402~2480 MHz)
Tx power -20~4 dBm
Rx sensitivity -94 dBm
Antenna type 1.0 dBi chip antenna
Transmit Range 20 m
RF data rate 85 kbps
Max. Slaves Supported 3
Bluetooth LE Interface
Version Bluetooth 4.0
Connection Role Central/Peripheral – connection mode
Observer /Broadcaster – broadcast mode
Communication Interface
Interface USB 2.0
USB Connector Type-A Plug
Compatibility USB 1.1 and 2.0 standard
Driver Support Windows 98/2000/XP/Vista/7/10
WinPAC (WinCE6.0/7.0)
LinPAC (Linux kernel 3.0.0-19)
Baud Rate 9600~115200 bps
Data Format N,8,1
Operating Voltage USB Socket Powered
Power Consumption 0.1 W(Max.)
Casing Plastic
Dimensions (W x L x H) 19.8 mm x 58.4 mm x 9 mm
Operating Temperature -25 ~ +75°C
Storage Temperature -25 ~ +75°C
Relative Humidity 5 ~ 95% RH, Non-condensing

Ordering Informations

USB to Bluetooth LE Converter (RoHS)


BLUE-USB datasheet