LoRa® Modules and ICs for Long Range, Low-Power Designs 


The SAM R34/R35 is a highly integrated family of LoRa technology devices that include an ultra-low-power, a high-performance 32-bit microcontroller (MCU), a LoRa transceiver and a software stack. With their certified reference designs and proven interoperability with major LoRaWAN® gateway and network providers, the SAM R34/35 devices significantly reduce time to market for Internet of Things (IoT) end devices. 

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LoRa Module or IC: What Is the Best Option for Your Design?


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WLR089U0 Module

Ultra-Low-Power, Regulatory-Certified Turnkey LoRa Solution

  • Based on the ATSAMR34J18 ultra-low-power IC
  • FCC, IC and RED certified
  • Integrated u.FL antenna connector for ease of use
  • Integrated RF switch to support 868 and 915 MHz bands
  • 256 KB Flash, 40 KB RAM for application and LoRaWAN stack
  • Low power consumption of less than 800 nA with RAM retention
  • Integrated TCXO for higher precision
  • Compact 17 × 13.5 mm size SMT package
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SAM R34 LoRa Technology ICs

Ultra-Low-Power and Small LoRa Technology ICs

  • Highly integrated ICs with ultra-low-power Arm® Cortex®-M0+ based MCU and LoRa technology radio
  • Up to 256 KB Flash and 40 KB RAM to accommodate application code and stack
  • 862 MHz to 1020 MHz coverage with 20 dBm max output power
  • Ultra-low-power sleep modes as low as 790 nA
  • Compact 64-pin 6 × 6 mm BGA package
  • Certified reference design package

Product Selection Tools


Take a deep dive into device specifications and compare products side by side using our product selection tools.

Why Design with the SAM R34/35 Family?


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Create Smaller Nodes

  • Integrated 32-bit Arm Cortex-M0 based MCU and Sub-GHz radio
  • Up to 256 KB Flash and 40 KB RAM
  • Compact 6 × 6 mm BGA package ICs and small 17.5 × 13.5 mm SMT module
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Increase Battery Life

  • Ultra-low-power 32-bit Arm Cortex-M0 based MCU
  • Sleep currents down to 790 nA
  • Low-power RAM with battery backup
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Reduce Your Design Risk

  • Certified module with u.FL connector
  • Certified IC reference design package
  • Interoperability-tested software
  • Trusted supply chain

SAMR34/35 Product Features


WLR089U0 and SAM R34/35 Software Features


Microchip LoRaWAN stack:

  • Developed, maintained and supported by Microchip
  • Supports Class A and Class C modes of operation
  • LoRaWAN 1.0.4 regional parameters
  • Multi-region support: US915, EU868, AS923, AU915, KR920, IN865 bands supported
  • Proven operation with leading network providers including Actility, Senet, The Things Network and Everynet
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Getting Started


We Have All the Tools Needed to Jumpstart Your Project

Our comprehensive selection of tools and accessible support makes LoRa product development easy. Our resources include:

  • Modules, SoCs and other devices
  • Development boards 
  • Detailed documentation 
  • Demo applications 
  • Design check service 
  • Technical support
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Development Tools


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WLR089 Xplained Pro Development Kit

Part Number: EV23M25A

  • FCC-, RED- and ISED-certified WLR089U0 module
  • On-board debugger (EDBG)
  • On-board power management system
  • Supported by Microchip Studio IDE
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SAM R34 Xplained Pro Evaluation Kit

Part Number: DM320111

  • ULP ATSAMR34J18B LoRa® device
  • FCC, ISED and RED certified development board
  • On-board TCXO, XPRO, GPIO and status LEDs
  • Supported by Microchip Studio IDE
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Microchip Studio Integrated Development Environment (IDE)

  • For AVR® and SAM MCUs
  • Seamless and easy-to-use environment
  • Import your Arduino® sketches
  • Extend access to Microchip Gallery

Markets and Applications


The SAM R34/R35 family’s ultra-low power performance combined with rich set of radio and peripheral features make it an excellent choice for a variety of long-range applications where longevity of battery life is of paramount importance.

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Smart Agriculture

  • Cattle tracking
  • Irrigation monitoring
  • Smart tractors
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Supply Chain and Logistics

  • Container tracking
  • Cold chain monitoring
  • Vehicle tracking
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Smart City

  • Street lighting
  • Waste management
  • Metering and leak detection