The document discusses the opportunities for IoT developers with Azure IoT Hub. It describes the different profiles of IoT developers including device, gateway, and cloud service developers. It then explains how Azure IoT Hub can help with device management and communication through features like device twins, methods, and jobs to schedule operations on large numbers of devices.

1. The IoT Developer Opportunity
with Azure IoT Hub
Juan J. Perez
Principal Program Manager
Azure IoT

2. IoT solutions are very diverse and multi-dimensional
Vertical (stack) and Horizontal (flow and translation)
Device IoT Gateway Cloud Service
Physical
WiFi
Physical
WiFi
Physical
GSM
Network
Transport
Presentation
Application
IPv4
TCP
TLS
MQTT
App Code
Physical
Ethernet
Application
HTTP
Cloud Platform as a Service
Network
Transport
Presentation
Application
IPv4
TCP
TLS
MQTT
Azure IoT Hub
Physical
Ethernet
App Code
Network
Transport
Presentation
Application
IPv4
TCP
TLS
HTTP
Network
Transport
Presentation
Application
IPv4
UDP
DTLS
CoAP
Network
Transport
Presentation
Application
IPv4
UDP
DTLS
CoAP
Gateway App
Azure IoT Gateway SDK

3. Different profiles of IoT developers
Device IoT Gateway Cloud Service
Azure IoT Gateway SDKApp Code
Cloud Platform as a
Service
Azure IoT Hub
App Code
Module Module Module
Device Developer Gateway/Device
Developer
Cloud Service Application
Developer
• Embedded/sensors
• Hardware aware
• Firmware aware
• Radio and protocol
aware
• Messaging aware
• Radio and protocol
translation aware
• OS aware
• Embedded/Sensors
• Hardware aware
• Cloud/web/mobile aware
• Messaging aware
• Stream processing and
machine learning aware
• Line of business aware

4. How does Azure IoT Hub help?
• Given 1 million devices deployed world-wide, how do you find the
10 that you’re looking for?
• Device twin properties
• Query based on device resources in device twin
• SELECT * from devices where ‘/3/0/1’ == ‘Acme Manufacturing Inc.’
• How do you read or execute on 10, 20k, or 1 million devices?
• Schedule the request for the right time
• Do the request
• Wait for response
• Track results
• Deal with failures

5. Azure IoT Hub Device Management
Enables synchronization of (desired and reported) properties between cloud and device
Enables interactive device actions
Enables the broadcast and scheduling of twin changes and methods at scale
Enables dynamic reporting to attest device status and healt
Enables management on a diverse set of device platforms and connectivity models

6. Device app Back end
Azure IoT Device Twin
Device twin
Properties
Desired
Reported
Tags Read, write
Read, write
Read
Read, receive
change notifications
Read, write
IoT Hub

7. Physical Device IoT Hub
IoT Hub Device Method
Back end application
Invoke Method
Device method
handler
Request
Response
Request
Response
12
3 4

8. Physical Device
IoT Hub
IoT Hub Device Method (disconnected device)
Back end application
Invoke Method
Device method
handler
Physical Device
IoT Hub Back end application
Invoke Method
Device method
handler
Device
Disconnected
Request
Response
Request
Response
12
3 4
Request
Response
1
2

9. IoT Hub
Jobs for scheduling device updates
Back end application
Schedule Update/Method
• DeviceList
• TwinPatch/Method
• StartTime (TStart)
1
Job
Update
T0
TStart
2
Physical Device
Device 1
Event handler
3
Update
TStart
2
Physical Device
Device 2
Event handler
3
Scheduling and tracking updates against a large set of
device is a non-trivial problem.

10. IoT Hub
Jobs for scheduling device twin updates
Back end application
ScheduleTwinUpdate
• DeviceList
• TwinPatch
• StartTime (TStart)
• MaxTimeExecution
1
Device twin
Device 1
Properties.Desired
Data
Job
Twin Update
T0
TStart
2
Physical Device
Device 1
Twin changed
handler
Twin
Changed
Event
(when device
connects)
3

11. IoT Hub
Twin update jobs for many devices
Back end application
ScheduleTwinUpdate
• TwinPatch
• DeviceList
• StartTime (TStart)
• MaxTimeExecution
Get Job or Job Query
1
4
Query
Device twin
Device 1
Properties.Desired
Data
Device twin
Device 2
Properties.Desired
Data
Device twin
Device (n)
Properties.Desired
Data
Job
Twin Update
Twin Update
Twin Update
T0
TStart
TStart
TStart
2
2
2
Physical Device
Device 1
Twin changed
handler
Physical Device
Device 2
Twin changed
handler
Physical Device
Device (n)
Twin changed
handler
Twin Changed Event
Twin Changed Event
Twin Changed Event
3
3
3

12. IoT Hub
Jobs for invoking device methods
Back end application
ScheduleDeviceMethod
• MethodParams
• DeviceList
• StartTime (TStart)
• MaxTimeExecution
1
Job
Invoke
Device
Method
T0
2
Physical Device
Device 1
Device method
handler
Device Method Request at TStart*
3
* Requires device to be connected. IoT Hub responds
immediately with error for disconnected device.
Device Method Response

13. IoT Hub
Device method jobs for many devices
Back end application
ScheduleTwinUpdate
• TwinPatch
• DeviceList
• StartTime (TStart)
• MaxTimeExecution
Get Job or Job Query
1
4
Query
Job
Invoke Device
Method
Invoke Device
Method
Invoke Device
Method
T0
2
2
2
Physical Device
Device 1
Device method
handler
Physical Device
Device 2
Device method
handler
Physical Device
Device (n)
Device method
handler
Device Method Request at TStart
Device Method Request at TStart
Device Method Request at TStart
Device Method Response
Device Method Response
Device Method Response
3
3
3

14. LWM2M and Azure IoT
Azure IoT Gateway SDK
LWM2M
Device
Azure
IoT
HubLWM2M
/CoAP
Protocol
Module
Azure
IoT
clientTranslation
Device twin
Methods
Jobs
Queries
IoT Cloud
Application
LWM2M
Device Twin
Methods