RM126x Ultra-Low Power LoRaWAN Module

Recommended for New Design (RND)

Overview

The Laird Connectivity RM126x series of modules (RM1261 and RM1262) is based on Silicon Labs EFM32 SoC and the Semtech SX126x radio. They provide a low power, long range solution for you to easily develop your LoRaWAN implementation. The RM126x series supports LoRaWAN classes A, B and C,  and also includes a LoRa Point to Point (LoRa P2P) capability which enables you to create your own private ultra-long range radio network between two RM126x modules.

The RM126x series modules are small form factor PCB modules with a built in MHF4 connector, TCXO and a DC-DC converter. The module is designed to operate in both hosted and hostless modes.

  • Hosted Mode – When connected to an external microcontroller, it can be simply and easily programmed with our AT command set.
  • Hostless Mode – Utilizing the powerful Cortex-M33 core which includes 512kB flash and 32K of RAM. Full support is offered by Silicon Labs' Simplicity Studio for development purposes with a range of sample applications being offered by Laird Connectivity to simplify customer development.
  • Small Form Factor – 14mm x 13mm PCB module designed for compact IoT devices.
  • LoRa P2P Communication – Enables you to create your own proprietary wireless network.
  • Quick to market - Built in TCXO, DC-DC converter and on board MHF4 antenna connector.
  • Ultra-Low Power Consumption - Years of use on a single battery.
  • Qualified Laird Connectivity Sub Ghz Antennas - FlexPIFA and i-FlexPIFA antennas under development for use with RM126x. 

Register For a Chance to Win: RM126x DVKs

Start prototyping your next IoT application today. Stay up to date and register for a chance to win one of 6 RM126x Series development kits.

The RM1262 kit contains:

  • RM1262 DVK Board (exposes all available HW interfaces)
  • 1x USB cable
  • 1x Laird Connectivity i-FlexPIFA antenna (902-928 MHz)

The RM1261 kit contains:

  • RM1261 DVK Board (exposes all available HW interfaces)
  • 1x USB cable
  • 2x Laird Connectivity i-FlexPIFA antenna (863-870 MHz and 902-928 MHz)

Register to Win

453-00140-md.png

Specifications

Chipset
Silicon Labs EFR32
Dimension (Length - mm)
14
Dimension (Width - mm)
13
Dimension (Height - mm)
2
Connector
MHF4
Certifications
RM1262: FCC, ISED, AS/NZS
RM1261: EU, UKCA, NCC, MIC, IN
Data Rate
LoRa 125kHz
LoRa 250kHz
LoRa 500kHz
FSK 50kbps (as per RP002-1.0.3 )
Frequency Range (Max)
870 MHz
Frequency Range (Min)
863 MHz
Frequency Range 2 (Max)
928 MHz
Frequency Range 2 (Min)
902 MHz
LoRa Version Class
Version V1.0.4 LoRa MAC Class A,B & C
Operating Temp (Max) (°C)
+85 °C
Operating Temp (Min) (°C)
-40 °C
Part NumberChipset (MCU)Chipset (Wireless)ConnectorFrequency Range (Max)Frequency Range (Min)Frequency Range 2 (Max)Frequency Range 2 (Min)PackagingPower Consumption (Tx)
RM1262 453-00142
453-00139R
Recommended for New Design (RND)
Buy Now
Silicon Labs EFR32 Semtech SX1262 MHF4 928 MHz902 MHzTape / Reel Up to 22dBm
RM1262 453-00142
453-00139C
Recommended for New Design (RND)
Buy Now
Silicon Labs EFR32 Semtech SX1262 MHF4 928 MHz902 MHzCut Tape Up to 22dBm
RM1261 453-00140
453-00140R
Recommended for New Design (RND)
Buy Now
Silicon Labs EFR32 Semtech SX1261 MHF4 870 MHz863 MHz928 MHz902 MHzTape / Reel Up to 14dBm
RM1261 453-00140
453-00140C
Recommended for New Design (RND)
Buy Now
Silicon Labs EFR32 Semtech SX1261 MHF4 870 MHz863 MHz928 MHz902 MHzCut Tape Up to 14dBm

Development Kits

  • 453-00139-K1

    453-00139-K1

    Development Kit, RM1262, SX1262, MHF4

    Learn More
  • 453-00140-K1

    453-00140-K1

    Development Kit, RM1261, SX1261, MHF4

    Learn More

Documentation

Name Part Type Last Updated
Product Brief - RM126X Series All Product Brief 05/18/2023
Datasheet - RM126x LoRaWAN Module All Datasheet 05/17/2023
RM126X SCH Symbol (Altium format) All Technical Drawings 05/23/2023
RM126X PCB footprint (DXF and Altium format) All Technical Drawings 05/23/2023
Schematic & PCB Assembly - DVK-RM1262 Devboard All Technical Drawings 05/23/2023
Schematic & PCB Assembly - DVK-RM1261 Devboard All Technical Drawings 05/23/2023
3D Model - RM1261, SX1261, MHF4 (453-00140) All Technical Drawings 05/23/2023
3D Model - RM1262, SX1262, MHF4 (453-00139) All Technical Drawings 05/23/2023
User Guide - RM126x Development Kit All Documentation 05/24/2023
Application Note - Peripheral Interface Guide - Lyra, Lyra 24, and RM126x Series All Application Note 08/02/2023
Application Note - Using Radio Test Firmware - RM126x Series All Application Note 08/08/2023
ISED Canada Certifications - RM1262 All Certification 08/08/2023
AS/NZS Certifications - RM1262 All Certification 08/08/2023
EU Certifications - RM1261 All Certification 08/08/2023
NCC Certifications - RM1261 All Certification 08/08/2023
MIC Certifications - RM1261 All Certification 08/08/2023
India Certifications - RM1261 All Certification 08/08/2023
FCC Certifications - RM1262 All Certification 08/08/2023
Regulatory Information Guide - RM1262 Series All Certification 08/09/2023
Regulatory Information Guide - RM1261 Series All Certification 08/09/2023
User Guide - RM126x AT Interface Application All Documentation 09/13/2023
User Guide - Firmware Options and Upgrading - RM126x Series All Documentation 08/22/2023
Firmware - RM126x Series (GitHub) All Software 08/15/2023
Release Notes - RM126x Series v x.4.1.421 All Documentation 09/13/2023
Application Note - Configuring the EVK UART Baud Rate - Lyra 22/Lyra 24/RM126x All Application Note 09/15/2023

Certified Antennas

FAQ

How can I build my own UART DFU utility (also known as uart_dfu or bt_host_uart_dfu) under Windows and/or Linux?

The UART DFU utility (also known as uart_dfu or bt_host_uart_dfu) is provided by Silicon Labs. It is a console application which enables firmware updates over a serial UART connection.

This host example is available in C and part of the official Gecko SDK (GSDK). In Windows the application can be built using, for example, MinGW or Cygwin. Under Linux or Mac the program can be compiled with the GCC toolchain.

Before starting, please make sure that Simplicity Studio 5 is installed on your Windows or Linux system. The Gecko SDK − 32-bit and Wireless MCUs technology / software component is mandatory, and the latest available version can be downloaded through the Installation Manager in Simplicity Studio at any time if needed.

Windows

You can either find the UART DFU host example under C:\SiliconLabs\SimplicityStudio\v5\developer\sdks\gecko_sdk_suite\\app\bluetooth\example_host\uart_dfu or C:\Users\\SimplicityStudio\SDKs\gecko_sdk\app\bluetooth\example_host\bt_host_uart_dfu. Depending on your Simplicity Studio 5 installation and configuration paths may be different. Otherwise, try to search for the uart_dfu folder on your Windows system.

  1. Download the latest available Mingw-w64 compiler binaries for Windows and extract them e.g. under C:\mingw64 with 7-Zip. In our example we are using the x86_64-12.2.0-release-posix-seh-rt_v10-rev0.7z release on a Windows 10 Enterprise (21H2) x64 system.
  2. Search under Windows for the Edit environment variables for your account shortcut or quick access item. Under User Variables, modify the Path variable. Click Edit and New and add your MinGW-w64 installation path to it. In our example it is C:\mingw64\bin. The bin folder is very important here. Click OK and save your environment variables. There is no need to reboot your computer. All environment variable changes are applied immediately.
  3. Next open a Command Prompt (cmd.exe) window, update the environment variables with the set PATH=C:\mingw64\bin;%PATH% command and navigate into the UART DFU host example folder. In our example we are using the cd C:\Users\Laird\SimplicityStudio\SDKs\gecko_sdk\app\bluetooth\example_host\bt_host_uart_dfu command.
  4. Now build the UART DFU host example by entering the mingw32-make command. This will take a few seconds. The bt_host_uart_dfu.exe binary can be found in a subfolder called "exe" once successfully completed.
  5. Use the cd exe command to navigate into the exe directory. For testing, enter bt_host_uart_dfu.exe which should print a similar usage information text as following: bt_host_uart_dfu.exe -t | -u [-b ] [-f] [-l ] [-h]

Linux

You can either find the UART DFU host example under /opt/SiliconLabs/SimplicityStudio/v5/developer/sdks/gecko_sdk_suite//app/bluetooth/example_host/uart_dfu or //SimplicityStudio/SDKs/gecko_sdk/app/bluetooth/example_host/bt_host_uart_dfu. Depending on your Simplicity Studio 5 installation and configuration paths may be different. Otherwise, try to search for the uart_dfu folder on your Linux filesystem.

  1. Make sure that the build-essential package is installed on your Linux system with the sudo apt install build-essential command. In our example we are using a Ubuntu 22.04 LTS x64 system.
  2. Next open a Terminal window and navigate into the UART DFU host example folder. In our example we are using the cd /root/SimplicityStudio/SDKs/gecko_sdk/app/bluetooth/example_host/bt_host_uart_dfu command.
  3. Now build the UART DFU host example by entering the make command. This will take a few seconds. The bt_host_uart_dfu binary can be found in a subfolder called "exe" once successfully completed.
  4. Use the cd exe command to navigate into the exe directory. For testing, enter ./bt_host_uart_dfu which should print a similar usage information text as following: bt_host_uart_dfu -t | -u [-b ] [-f] [-l ] [-h]

What is Laird Connectivity's product lifecycle EOL and PCN policy?

Laird Connectivity is committed to the long-term supply of all its standard embedded wireless modules and packaged products. Laird Connectivity’s products are specifically designed to meet the needs of the industrial and medical markets, which typically require 7 – 10 years product lifecycle. Although Laird Connectivity can’t guarantee that a component used in our products will not be obsoleted and cannot be reasonably substituted, Laird Connectivity can assure customers we will continue to sell our product when we have customer demand and can obtain the necessary components to build our products.

View our full policy here. 

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Distributor Part In Stock Region Buy
DigiKey 453-00139-K1 25 North America Buy Now
Mouser 453-00139-K1 15 North America Buy Now
Farnell 453-00139-K1 10 EMEA Buy Now
Newark 453-00139-K1 10 North America Buy Now
element14 APAC 453-00139-K1 10 APAC Buy Now
Symmetry Electronics 453-00139-K1 5 North America Buy Now
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Avnet 453-00139C 250 North America Buy Now
Symmetry Electronics 453-00139C 250 North America Buy Now
Mouser 453-00139C 244 North America Buy Now
Farnell 453-00139C 0 EMEA Buy Now
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DigiKey 453-00139R 2000 North America Buy Now
DigiKey 453-00139R 2000 North America Buy Now
DigiKey 453-00139R 2000 North America Buy Now
Avnet 453-00139R 1000 North America Buy Now
Mouser 453-00139R 1000 North America Buy Now
Symmetry Electronics 453-00139R 0 North America Buy Now
DigiKey 453-00140-K1 27 North America Buy Now
Farnell 453-00140-K1 10 EMEA Buy Now
Newark 453-00140-K1 10 North America Buy Now
element14 APAC 453-00140-K1 10 APAC Buy Now
Mouser 453-00140-K1 7 North America Buy Now
Symmetry Electronics 453-00140-K1 5 North America Buy Now
Avnet 453-00140-K1 0 North America Buy Now
Farnell 453-00140C 250 EMEA Buy Now
Farnell 453-00140C 250 EMEA Buy Now
Mouser 453-00140C 250 North America Buy Now
Newark 453-00140C 250 North America Buy Now
Symmetry Electronics 453-00140C 250 North America Buy Now
element14 APAC 453-00140C 250 APAC Buy Now
element14 APAC 453-00140C 250 APAC Buy Now
Avnet 453-00140C 0 North America Buy Now
DigiKey 453-00140R 1995 North America Buy Now
DigiKey 453-00140R 1995 North America Buy Now
DigiKey 453-00140R 1000 North America Buy Now
Mouser 453-00140R 985 North America Buy Now
Avnet 453-00140R 0 North America Buy Now
Symmetry Electronics 453-00140R 0 North America Buy Now

Distributors

Distributor Phone Number Region Website
Alpha Micro UK Only +44 1256-851770
EMEA Website
Arrow Electronics 1-855-326-4757
+44 2039 365486
APAC, North America, South America, EMEA Website
Avnet 1-480-643-2000
+44 1628 512900
APAC, North America, South America, EMEA Website
Braemac Australia, New Zealand, South East Asia +61 2 9550 6600
+64 9 477 2148
APAC Website
Cal-Chip Connect 1-215-942-8900
North America Website
Digi-Key 1-800-344-4539
North America, South America, APAC, EMEA Website
EBV Elektronik EMEA Website
Farlink Technology China, Hong Kong +86 13266922199
APAC Website
Farnell 1-800-936-198
+44 3447 11 11 22
EMEA Website
Future Electronics 1-800-675-1619
1-514-428-8470
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Glyn +49-6126-590-0
EMEA Website
Jetronic China, Hong Kong and Taiwan 852-27636806 
APAC Website
Laird Connectivity 1-847-839-6925
+44 1628 858941
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M2M Germany +49-6081-587386-0
EMEA Website
Martinsson +46 8 7440300
EMEA Website
McCoy South East Asia +65 6515 2988
APAC Website
Mouser 1-800-346-6873
+44 1494 427500
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RS Components +852-2421-9898
+44 3457-201201
North America, South America, APAC, EMEA Website
Ryoyo Japan +81-3-3543-7711
APAC Website
Solid State Supplies UK Only +44 (0) 1527 830800
EMEA Website
Supreme Components International India, South East Asia +65 6848-1178
APAC Website
Symmetry Electronics 1-866-506-8829
North America Website
Tekdis Australia and New Zealand +61 3 8669 1210
APAC Website
Telsys +972 3 7657666
EMEA Website