Index: SDDs/Wifi.puml
===================================================================
diff -u
--- SDDs/Wifi.puml	(revision 0)
+++ SDDs/Wifi.puml	(revision 374f278918d82bbab9d74ae2071c09a9835e00d6)
@@ -0,0 +1,85 @@
+@startuml Wifi
+
+    participant TD                  as TD
+    participant UI                  as UI
+    participant SW                  as SW
+    participant Script              as Script 
+    participant Operating_System    as OS
+    control     Wait_Retry          as Wait_Retry
+    actor       USER                as US
+
+    'Possible actions and interaction tuypes
+    ' TD -> SW: MSG: Message
+    ' SW -> TD: MSG: Message
+    ' SW -> UI: CMD: command
+    ' UI -> SW: ACT: Action
+    ' SW -> Script: RUN: Run script
+    ' Script -> OS: CMD: command
+    ' Script -> SW: MSG: Message
+
+    ' US -> UI: User actions are:
+    '   ENT: User enters a value or string
+    '   TCH: User touches a button (RadioButton, CheckBox, ...)
+    '   SCL: User scrolls a flipable area
+
+    == Normal Bootup ==
+    TD -> SW: MSG: [x12: 3,1] \n OpMode - Standby Dat
+    SW -> UI: CMD: MainHome Screen
+    UI ->o Wait_Retry: ⟲: MainHome Screen
+    == Wi-Fi Settings Page ==
+    US -> UI: TCH: Settings Button
+    UI -> SW: CMD: Device Settings Screen
+    US -> UI: TCH: Wi-Fi Button
+    UI -> SW: CMD: Wi-Fi Settings Screen
+    SW -> Script: RUN: wifi_scan.sh
+    activate Script
+    Script -> OS: CMD: 'nmcli dev wifi list'
+    Script -> SW: MSG: List of available Wi-Fi networks
+    deactivate Script
+    SW -> UI: ACT: Process and display available networks
+    UI ->o Wait_Retry: ⟲: Wi-Fi Screen
+        alt Connect Wi-Fi
+        US -> UI: SCL: Scroll through available networks
+        US -> UI: TCH: Select desired network
+        US -> UI: ENT: Enter password 
+            alt Confirm
+            US -> UI: TCH: Confirm Button
+            UI -> SW: ACT: Connect Wi-Fi by SSID and password
+            SW -> Script: RUN: wifi_connect.sh
+            activate Script
+            Script -> OS: CMD: 'nmcli dev wifi connect <SSID> password <password>'
+            deactivate Script
+            SW -> UI: CMD: Wi-Fi Settings Screen
+            SW -> Script: RUN: wifi_scan.sh
+            activate Script
+            Script -> OS: CMD: 'nmcli dev wifi list'
+            Script --> SW: MSG: Provide list of available Wi-Fi networks
+            deactivate Script
+                alt Connection Successful
+                SW -> Script: RUN: wifi_info.sh
+                activate Script
+                Script -> OS: CMD: 'nmcli commands to retrieve desired parameters'
+                Script --> SW: MSG: Provide Wi-Fi info <SSID,IP,SUBNET_MASK,GATEWAY,DNS>
+                deactivate Script
+                SW -> UI: CMD: Update all UI fields (IP, Gateway, Subnet, DNS, SSID)
+                end
+            else Back
+            US -> UI: TCH: Back Button
+            UI ->o Wait_Retry: ⟲: Wi-Fi Screen
+            end
+        else Disconnect Wi-Fi
+        US -> UI: TCH: Select connected network
+            alt Confirm
+            US -> UI: TCH: Confirm Button
+            UI -> SW: ACT: Disconnect Wi-Fi by SSID
+            SW -> Script: RUN: wifi_disconnect.sh
+            activate Script
+            Script -> OS: CMD: 'nmcli nmcli connection delete <SSID>'
+            deactivate Script
+            SW -> UI: CMD: Clear all UI fields (IP, Gateway, Subnet, DNS, SSID)
+            else Back
+            US -> UI: TCH: Back Button
+            UI ->o Wait_Retry: ⟲: Wi-Fi Screen
+            end
+        end
+@enduml