This document discusses Wi-Fi provisioning of IoT devices from both technical and user perspectives. Wi-Fi provisioning involves loading a device's firmware with the SSID and password of a Wi-Fi network. Devices can operate in station, access point, or both modes. Provisioning in access point mode requires a direct connection between the mobile app and device, while station mode uses UDP broadcasts to share network credentials without direct connection. The document compares the technical aspects and user experience of different provisioning methods.

1. TECHNICAL & USER PERSPECTIVE
-VIKRAM
PROVISIONING WI-FI
ENABLED IOT DEVICES

2. AGENDA
▸What is provisioning of Wi-Fi Enabled devices
▸Various mode of Wi-Fi operation
▸Technical aspects of Wi-Fi provisioning
▸User aspect of Wi-Fi provisioning

3. PROVISIONING & KEY ELEMENT
▸Wi-Fi provisioning is the process to add new Wi-Fi device to
Wi-Fi network
▸Process involves loading station with SSID & password of
Wi-Fi
▸Elements Required for provisioning:
A) Mobile application,
B) Wi-Fi device which is to be provisioned
C)Wi-Fi access point i.e. router

4. OPERATING MODE OF WI-FI DEVICES
▸Wi-Fi devices can work in three different modes
A) Station mode i.e. client mode
B) Access Point mode referred as Soft AP mode
C) Both Station mode & Access Point mode

5. ESP8266 IN STA MODE I.E. CLIENT MODE
Type to enter a caption.

6. ESP8266 IN SOFT AP MODE

7. ACCESS POINT MODE PROVISIONING
▸Device firmware enables Wi-Fi device to run in access point
mode
▸Mobile Application establishes TCP connection with Wi-Fi
Device running in access point mode
▸TCP is connection oriented protocol, this fact necessitates
direct connection of Mobile to Wi-Fi Device( being
Configured in AP Mode)
▸Ex. Alexa Wi-Fi provisioning is in AP mode & that's why

8. ALEXA WI-FI PROVISIONING
▸RESET Alexa, Wi-Fi enabled to run on Access Point mode
Usually name is ‘Amazon_ECxx’
▸Search for Alexa Device in Alexa App & connect with
Amazon_ECxx.
▸This is direct connection of mobile with device being
configured i.e. internally TCP connection
▸TCP connection is used to pass-on Wi-Fi( Router)
Credentials

9. WI-FI PROVISIONING IN STA- STATION MODE
▸Wi-Fi device act as client, Firmware make sure device is in UDP listening
mode
▸Mobile need to connect with available Wi-Fi router
▸Once provisioning is triggered from Mobile Application broadcasts SSID &
Password( of same Wi-Fi router with which it is connected) in UDP
packets in regular interval as configured in mobile app. Therefore direct
connection with mobile is not required
▸UDP packet is sniffed by Wi-Fi device in STA mode
▸Wi-Fi device in STA mode decodes credential & tries connection with Wi-
Fi( Router)
▸Once Wi-Fi in STA mode is successful with connection is ACK with
Success event & obtained IP address.

10. ORIENT AERO SLIM, OAK REMOTE STEPS
▸Connect Mobile with available Wi-Fi routers
▸Trigger the provisioning in mobile application
▸Wi-Fi device STA mode must be powered-ON
▸Mobile application send UDP packet to Wi-Fi Device in STA mode
▸Wi-Fi in STA mode sniffs packet & attempts connection with Wi-Fi
Router
▸If Successful ACK Directly to Mobile App
▸Else retries

11. USER PERSPECTIVE OF WI-FI PROVISIONING
-STA MODE
▸Wi-Fi in STA mode Provisioning stands good from user
perspective since for user it is one click on mobile
application & rest is handled by mobile. Layman has ease in
provisioning
▸Changing the Wi-Fi network is easy in future
▸Offers possibility of meshing
▸Connection may take while & couple of attempts may be
required

12. USER PERSPECTIVE OF WI-FI PROVISIONING
-SOFT AP MODE
▸Wi-Fi( Soft AP Mode) provisioning is Minimum two step
process that is good for technical literate user not for layman
user
▸Though surety of connection is high that previous

13. THANKS