V4.1 bluetooth module
USR-BLE100/ In stock

UART Seiral to Bluetooth Module, Low Cost Ble Bluetooth Module 4.0 4.1

SMD Type
Ble4.1 protocol
Operation temperature Range of -40°C- 85°C

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USR-BLE100 is an ultra-low power V4.1 bluetooth module. It is used for point-to-point data transparent transmission. User’device can communicate immediately after simple setup without concerning about transport protocol. The module supports master and slave mode. User not only can use both master and salve for transparent transmission, also can develop APP on the basis of standard BLE protocol. The module supports one-to-many broadcast, and has built-in iBeacon protocol. User can make it an iBeacon equipment with simple setup.


  • Support standard BLE protocol
  • Low power broadcast mode of 1.3uA, sleep mode of 150nA,a variety of wake-up methods
  • Master/slave mode, quick switch
  • Setup methods: serial AT command,transparent transmission AT command
  • Support one-to-many data broadcast mode, built-in iBeacon protocol
  • Support Mesh networking mode to realize bluetooth self-organized network
  • Support UART Interface
  • 1.9V~5.5V single supply
  • Support power detection function


  • Wearable smart devices
  • Industrial data acquisition
  • Intelligent instrument
  • Sports smart devices
  • Medical intelligent device
  • Smart mobile terminal
  • Indoor localization
  • Information identification
  • iBeacon
  • Homekit
Wireless Parameter
Wireless Standard802.15.1
Frequency Range2.402GHz-2.480GHz
Transmit Power-18dBm to +3dBm
User can configure the power
Receiving Sensitivity-89dBm
Antenna SelectionExternal: I-PEX connector
Internal: on-board antenna
Hardware Parameter
Data InterfaceUART: 2400bps - 115200bps
Working Voltage1.9V~5.5V
Working Current60nA~12mA
Working Temp-40°C- 85°C
Storage Temp-40°C- 125°C
Software Parameter
Device TypeMaster/slave device
Security Mechanism128 bit AES engine
EncryptionPC1 encryption
Working ModeMaster device,slave device,broadcast mode
Setting CommandAT+ command structure
User ConfigurationSerial AT command,transparent transmission AT command
Application SoftwareSupport customization

User Manual

[Datasheet] USR-BLE100 Datasheet | download
[User Manual] USR-BLE100 User Manual | download
[User Manual] USR-BLE100 Hardware Manual | download
[AT Command] USR-BLE100 AT Command Set | download
[User Manual] USR-BLE100 Software Design Manual | download

Application Software

[USR-BLE-Updata] Bluetooth Module Serial Upgrade Tool | download
[USR-BLE-Assistent] Bluetooth Module Debugger IOS Version | download
[USR-BLE-Assistent] Bluetooth Module Debugger Android Version | download
[USR-TCP-Test_android] Testing Software | download
[USR-TCP-Test] Testing Software | download
[USR-VCOM] Virtual Serial Software V3.7.1.520 | download

Product Certificate

[Certificate] BLE Series CE FCC Certificate | download

Company File

[Product Catalog] USR Product Catalog | download


All USR products will be tested by R&D first, then production test again.(ESD Test,Surge/EFT Test, High/Low Temperature Test, EMC and LVD environment reliability test, etc.) Click here to watch test videos.
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USR products are exported to more than 100 countries and regions, get approvals like CE, FCC, ROHS, CCC, KC, IC, SRRC, etc.
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