Provisioning of Wi-Fi enabled IOT devices
- 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