Sentrius RM186 / RM191 - LoRa + Bluetooth v4.0 Enterprise IoT modules

RM1xx modules offer a powerful, convenient solution for long-range Enterprise IoT (EIoT) deployments, combining Bluetooth® v4.0 with LoRaWAN™ in one module.

Laird RM1xx modules aggregate and transmit data from Bluetooth® Smart (BLE) devices and sensors over LoRa® to gateways as far as 15 km (~10 miles) away. This bridges the personal area network to the wide area network in a unique way. The RM1xx will be LoRa® Alliance certified and fully interoperable with any LoRaWAN™-adherent gateway.

Key features:

  • Designed for the EIoT - Innovative combination of BT™ v4.0 and LoRa® makes the RM1xx the bridge between Bluetooth Smart devices and a network that intelligently uses their data.
  • Ultra-low power usage schemes - Allows years of use on a single battery.
  • Laird's unique smartBASIC language - Makes it extremely easy to create event-driven, hostless applications.
  • Upgradable firmware - Prepare for the future with access to feature and security updates.
  • Compliant with FCC, CE regulations - Available as the RM186 (CE) or RM191 (FCC).

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.


  • Antenna Options
    Available antenna options include Laird antenna part number 0600-00060: Dipole Antenna, 863 - 928MHz, coaxial cable to u.FL connector
  • Applications
    Smart Metering and Remote Sense, Industrial Automation/Monitoring and Control, Agricultural and Rural (Farm Sense/Control)
  • Bluetooth Version
    V4.0 -Bluetooth Smart- Central mode OR Peripheral Mode
  • Connector Type
    U.FL
  • Frequency
    863 - 870 MHz (LoRaWAN EU), 902 - 928 (LoRaWAN US), 2.402 - 2.480 GHz (BLE)
  • Industries
    Industrial / Production
  • Logical Interfaces
    SMT
  • Max Transmit Power
    RM186 (Europe): 14dBm to 0dBm ERP (2dBi dipole). RM191 (US): 15dBm to 0dBm ERP (2dBi dipole). BLE: 3dBm radiated (by on-board chip antenna)
  • Output Power
    2mW and 25mW (EU), 2mW and 32mW (US)
  • Product Line
    900MHz / 868 MHz Module with LoRa + Central or Peripheral BLE
  • Protocols
    LoRa Class A and Bluetooth Low Energy
  • Wireless Specification
    LoRa MAC Class A Specification, Bluetooth V4.0 - Central Mode OR Peripheral Mode
Part No. Description Pack Size
RM186-SM Intelligent LoRa/BLE module (868MHz LoRa for Europe) featuring smartBASIC Tray of 40
RM191-SM Intelligent LoRa/BLE module (915MHz LoRa for USA/Canada) featuring smartBASIC Tray of 40
DVK-RM186-SM Development kit for RM186-SM LoRa/BLE module (868MHz LoRa for Europe) Each
DVK-RM191-SM Development kit for RM191-SM LoRa/BLE module (915MHz LoRa for USA/Canada) Each
QPK-nRF5x-01 Laird development board for FW upgrade of BL6xx and RM1xx series wireless modules. Includes: programming board, 1 x USB-A to USB micro cable & 1 x 10-pin flexi cable. REACH & RoHS. Each

The Laird DVK-RM1xx development kit provides a platform for rapid wireless connectivity prototyping, providing multiple options for the development of LoRa and Bluetooth Low Energy (BLE) applications.

AlphaMicro_Laird_DVK-RM186-SM_01_300px

The kit contains the following items:

Development board The development board has the required RM1xx module soldered onto it and exposes all the various hardware interfaces available
Power options
  • USB cable - Type A to micro type B. (The cable also provides serial communications via the FTDI USB - RS232 converter chip on the development board.)
  • DC barrel plug with clips for connection to external power supply (7-12V)
  • 3x AAA battery holder fitted on underside of development board
2 pin jumpers for pin headers x 5 Supplied 2 pin jumpers spares. The jumpers are for 2.54 mm pitch headers used on DVK-RM1xxV1 development board.
Fly lead x 6 Supplied to allow simple connection of any RM1xxmodule pin (available on Plated Though Holes on J28, J29, J1(J3, J4, J5, J9), J7, J8, J10, J13, J14) to any Arduino pin (available on Plated Though Holes on J15, J23, J16, J17, J20, J24, J21)
External LoRa® dipole antenna Externa multiband LoRa dipole antenna, 0.9dBi, 863-928MHz, (Laird part # 0600-00060)
Web link card Provides links to additional information including the RM1xx user manual, firmware, terminal utilities, schematics, quick start guides, and firmware release notes and much more.

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Last updated: 22 May 2018