Microchip LoRa TM Technology

RN2483/ RN2903 Modem Overview

March 2015
WIRELESS PRODUCTS DIVISION
Do Not Distribute

Microchip Technology Confidential & Proprietary

 Agenda

 LoRaTM Target IoT Market Segment

 LoRaTM Technology & LoRaWANTM Protocol
 LoRaTM Infrastructure
 Microchip LoRaTM Modem Deployment
 Summary

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 Connected Devices of IoT
Market Segments
Local Area Network
Short Range
Communication Devices LoRa technology is
Forecasted over 20
ideal for Low Power
billions connected •Established Standards
•Short Range Wide Area Network
devices in IoT market •Mobile Devices
(LPWAN) of IoT
Trade off
• Range
• Battery Life
Low Power Wide
Area Network
Cellular Network Long Range
Long Range Monitor/Control/Sensor
Traditional M2M
•Emerging Standard
•Established Standard •Long Range
•Long Range •Long Battery
•High Data Rate •Low Data Rate
•Low cost
Trade off •Simple & robust
• Battery Life infrastructure
• Service Cost •Scalable
•Open & interoperable
standards

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 LoRa Target Markets :
TM

Ideal for Internet of “Things”

Monitoring/ Control Smart Energy Smart City

Light Control Smart Agriculture Smart Home and Security
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 What is LoRaTM Technology?
 LoRaTM is a proprietary wireless technology
developed by Semtech
 Enable long range coverage and low power
At +14dbm output power, 868MHz:
 Up to 5km range in urban environment, up to 15km suburban
 >10 year battery life capability

 Robust communication
 Not susceptible to interference from Wi-Fi, Bluetooth, GSM, LTE, etc

 Improved network capacity

 Connect more nodes, 100k to 300k nodes

 High accuracy localization and ranging capability

(not available now)
 Modulation format permits high accuracy localization
 Not RSSI based and accounts for multi-path and fading
 Permits high value additional features
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 Technology Comparison

168 dB

-90 dBm -100 dBm -117 dBm -126 dBm -148 dBm

100 m 200 m 15 km

18 months 36-60 months 90 months >100 months

Low High

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 What is LoRaTM- Modulation
LoRa TM uses „Chirp‟ spread spectrum modulation
-138dBm
145

LoRa 140

135

130

sensitivity (dBm)
125

120

115

110

GFSK 105

100

95
3 4 5
10 10 10
bits/sec
 Innovative & cost sensitive implementation
 Demodulate signals below the noise floor, improving sensitivity by ~20dB
 Robust against interference, noise, and jamming
 Multiples signals can occupy the same channel (CDMA)
 Tolerant to frequency offsets (unlike DSSS)

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 LoRa TM Coverage Test

Longest Range Coverage !

 Coverage map from a single

gateway/concentrator located on
Cisco Webex building in San Jose
 >20miles to San Bruno

 A conservative 1 mile radius

allows for in-building
penetration even at
the edges

 7 Gateways cover all

of lower Manhattan

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 LoRa TM Technology Benefits

Key Features Customer Benefit

168dBm link budget (-148dBm sensitivity,

Longest range
+20dBm Tx @ 900MHz)

Jamming resistant – tolerant to burst

interference
Robust links and network
>100dB blocking efficiency

Simultaneous transmission on same channel

Insensitive to XTAL offsets (no TCXO)

Lower system cost
Eliminates need for repeaters

10mA RX current, nA sleep current Extended battery lifetime

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 LoRaWANTM
Protocol and Benefits
 LoRaWANTM Protocol is defined by LoRa Alliance for LPWAN
 Bi-directional, Secured, Star Network
 Seamless interoperability among IoT devices without the need of complex local
installations

True Location Bidirectional Global Mobility Security

 In/out door  Bidirectional  True Mobility  Unique ID
 Accurate  Scalable Capacity  Seamless  Application Key
 Broadcast  Roaming  Network Key

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 Agenda

 IoT Overview and Requirements

TM
 LoRa Technology & LoRaWAN protocol
TM

 LoRaTM Infrastructure
 Microchip LoRaTM Modem Deployment
 Summary

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 LoRaTM Infrastructure
 Private network – Individually managed networks

Microchip LoRaTM LoRaTM Gateway Network Server

Modem
 Public network – Telecom/operator managed networks

Telecom Service

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 LoRaTM Network Deployment
 Private network - individually managed
networks
 Smart city, Metering, security, home automation,
industrial control
 Local network

 Public network -
Telecom/operator managed
networks
 Includes traditional private networks
 Permits numerous
new applications
 A much more scalable
model
 Nationwide network

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 Public Network
User Data Connection
Customer Customer
App. Server App.

UART Data
base
Parser Logical connection
GW is bypassed! LoRaWAN
LoRaWAN
MCHP Modem

Slave Master
Radio driver Server IF
SPI

SX1276 PurchaseGateway
from LoRa service provider
Packet Forwarder
Coax TCP/IP
SPI UART

Concentrator GPS
Network Controller
LoRa Node Coax PPS CLOUD

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 LoRa™ Network Benefits

Long Range Max Lifetime Multi-Usage Low Cost

 Greater than cellular  Low power optimized  High capacity  Minimal infrastructure
 Deep indoor coverage  10 to 20 yr battery life  Multi-tenant  Low cost end-node
 Star topology  10x cellular M2M  Public networks  Open SW

The LoRa™ name and associated logo are trademarks of Semtech Corporation or its subsidiaries.
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 LoRaTM Partners
Network Public Network
End Nodes Gateway Server Operator

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 Agenda

 IoT Overview and Requirements

TM
 LoRa Technology & LoRaWAN protocol
TM

 LoRaTM Infrastructure
 Microchip LoRaTM Modem Deployment
 Summary

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 LoRaTM Modem Features
General Features:
 Integrates LoRaTM Radio, PIC MCU &
LoRaWANTM (Class A) stack
 Microchip “RN-Style” Modem
 Complete Stack on Board
 Simple ASCII command through UART I/F
 Easy configuration
 Quick time to market
 Fully certified
 Works with any MCU
 Supports ALL PIC family
 Supply voltage: 2.1V-3.6V
 14x GPIOs
 Modem size (same as RN171)
 17.8 x 26.7 x 3 mm

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 LoRa TM Modem Features
RF Features
 Tx output power:
 +20 dBm @ 915 MHz (FCC)
 +14 dBm @ 868 MHz (ETSI)
 +10 dBm @ 433 MHz

 High sensitivity: down to -148 dBm

 168 dB maximum link budget
 Tx current: 40 mA typ at +14 dBm
 Rx current: 14.2 mA typ
 Sleep mode/ low power down mode: 1 uA typ
 Excellent blocking immunity
 FSK and LoRa
 Programmable bit rate: 300bps – 5.5kbps (LoRa)
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 LoRaTM Modems
 Current products:
 Europe modem: RN2483
 Dual Band: 434 MHz / 868 MHz, off-board antenna
 EU Certified (R&TTE Assessed) Radio Module
 Samples: CY2Q2015,
 Production: May/June 2015
 Pricing: Contact Local Microchip Sales office
 In Development:
 North America modem: RN2903
 Single band: 915 MHz, off-board antenna
 FCC certification
 Samples: CY3Q2015
 Production: July/Aug 2015
 Pricing: Contact Local Microchip Sales office
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 Microchip LoRa TM Demo Kit
 End-to-end demo kits to reduce risk
and provide quick evaluation
 LoRa TM Modem board (MOTE) and PICtail
 LoRa TM Gateway (MCU and RF Board)

 LoRa TM Network service (PC Based)

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 Microchip LoRa TM Modem
Benefits Summary
Feature Benefits

Integrated LoRaTM Technology Up to 15km, >10 year battery life

Integrated LoRaWANTM protocol Easily establish IoT with partners in
private/public network controller
Simple ASCII command Easy to use,
Complete stack on modem Fast time to market
Easy Configuration Reduce R&D cost

14x GPIOs available Flexibility to control/monitor many sensors,

actuators or other hardware
Fully certified modem Fast time to market
Save certification cost
Small form factor Ideal for space constrained applications
AES-128 Secured Network & Application

Proven Development Environment

Reduced development risk
Robust Demo Kits

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 Agenda

 IoT Overview and Requirements

TM
 LoRa Technology & LoRaWAN protocol
TM

 LoRaTM Infrastructure
 Microchip LoRaTM Modem Deployment
 Summary

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 Summary

 Revolutionary & disruptive technology for IoT

 LoRa enables long range, low power communication
 Microchip is a Founder-member of LoRaTM Alliance
 Microchip modems target end-node applications
 Microchip LoRaTM complete “out-of-the-box”
solution provides saves time-to-market
 Established LoRaTM ecosystem and partner
relationships makes deployment quick & easy

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 Reference In Development

 Website Landing Page:

www.microchip.com/LoRa
 RN2483 Datasheet and Command User
Guide
 Contact WPD marketing
 RN2483 – Early Adopter program
 Contact WPD Marketing for more details

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