LoRa®-based Solutions Make Low-Power Wide-Area Networks Possible

Overview

LoRa®-based Solutions

LoRa® is a spread spectrum modulation technique derived from chirp spread spectrum (CSS) technology developed by Semtech Corporation. Our LoRa® -based solutions use the sub-GHz frequency band of frequencies below 1 GHz), and can cover a wide area with low power consumption.

LoRa® realizes a maximum transmission rate of 11 kbps and a maximum transmission distance of around 20 km. LoRa® supports a wider transmission area than Wi-SUN.

The LoRaWAN® open specification is a low power, wide area networking (LPWAN) protocol based on LoRa® Technology. The LoRaWAN® is an open global standard maintained by the LoRa Alliance®, an open non-profit association.

 

Transmission distance

Applications of LoRa®-based Solutions

LoRa® is suitable for wireless data communications that send small amounts of data over long distances at a low data rate periodically or not so frequently.

Applications of LoRa Solutions

  • Gas meter
  • Water flow meter
  • Vending machine data collection

Applications of LoRa Solutions

  • Structural change notification
  • Building/parking facility management
  • Warehouse inventory management

Applications of LoRa Solutions

  • Agriculture/livestock management
  • Livestock feeding management
  • Livestock location monitoring

Applications of LoRa Solutions

  • Healthcare data management
  • People tracking
Tools

Development Environment for Easy Development and Evaluation

The software development environment consists of the RL78/G14 Fast Prototyping Board and the Semtech SX1261/1262 Shield.

 

Product Information

 

Notes on using the RF transceiver:

The use of wireless receivers and transmitters is restricted by international standards and domestic regulations. Wireless receivers and transmitters must therefore be used in accordance with the applicable laws and regulations of the country in which they are being used.

Solutions

LoRa®-based Solutions for Low Power

One of Renesas’ solutions comprises a low power RL78 Family microcontroller (RL78/G14 MCU) and a LoRa® transceiver (Semtech SX1261/SX1262) for low power operation. This solution contributes to the realization of IoT sensor end-devices with long battery life.

 

Example of connection

LoRaWAN® Average Current (Estimation): LoRaWAN® Class A Operation - TX + RX (ACK)

Low power consumption of LoRaWAN® stack

  • LoRaWAN® stack shifts RF part to the most suitable low consumption mode automatically according to the internal operating state.
  • MCU part can be shifted to a low consumption mode during frame sending and receiving.
  • Low power timer function optimized for intermittent operation is supported. This can also be used from an application.

Software for Ease of Design

Renesas offers software for controlling a LoRa® transceiver (Semtech SX1261/SX1262) using a low power RL78/G14 MCU. Two software packages are available. For applications that require interoperability, there is the LoRaWAN® protocol stack based on the LoRaWAN® specification. Control is performed using AT commands. For applications for which interoperability is not necessary, there is a radio driver for LoRa® for custom protocol implementation.

 

Software for ease of design

Wireless Communication Tools for Ease of Evaluation

Renesas offers tools that make evaluating characteristics easy. Renesas LPWA Studio can perform continuous CW/Modulation transmission, PER (Packet Error Rate) / BER (Bit Error Rate) measurement, and RSSI measurement. It also has a sniffer function that captures LoRa®/GFSK modulation frames over the air and displays analysis results. Renesas also offers a tool that estimates power consumption.

 

Renesas LoRa Studio

Technical Standards

LoRa®  LoRa alliance logo

The development of LPWA wireless networks continues to progress with the proliferation of IoT. Various standardization and promotion organizations are making vigorous efforts to create specifications and promote widespread adoption of their specifications to create a global IoT market.

The LoRa Alliance® is advancing LoRaWAN® standardization and its promotion, and is engaged in efforts to develop low-power wide-area wireless networks that use frequency bands that do not require licensing.

Renesas is a contributor member of the LoRa Alliance®, and will continue to contribute to both the standardization and promotion activities of LoRaWAN®, which is expected to further expand in the future.

LoRaWAN® networks simplify system building. LoRaWAN® is a wireless specification that achieves low-power wide-area (LPWA) wireless networks for the Internet of Things (IoT) as an open global standard.

Example of Application

Learn more about LoRa®-based Network Applications

Are you looking for a complete asset tracking solution from device to cloud?

How to Deploy a LoRa Network 
for your IoT Application

How to Deploy a LoRa®-based Network for your IoT Application

Learn how to leverage the advantages of a LoRa®-based network, the RX family of MCUs, an array of powerful sensors, and the Medium One cloud solution to send data over long distances to be monitored and analyzed in the Cloud in real-time.

Download White Paper

Building a Complete LoRa<sup>®</sup>-based  Network from Sensor to Cloud

On-Demand Webinar

Building a Complete LoRa®-based Network from Sensor to Cloud

Set up a complete LoRa®-based asset tracking system from sensor to gateway to cloud with Renesas’ RX MCUs and Medium One.

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*Semtech, LoRa®, and LoRaWAN® are registered trademarks of Semtech Corporation.

 

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