Merge branch 'bluetooth_fix' into 'main'

updated state diagram

See merge request !2

state_diagram.puml

@@ -9,8 +9,8 @@ read -left-> run
 run -down-> send : send button callback
 send -up-> run
 
-read -down-> stop : VBUS is connected
-stop -up-> read : VBUS disconnected
+read -down-> vbus : VBUS is connected
+vbus -up-> read : VBUS disconnected
 error -up-> init : sensor connected
 
 state error {
@@ -21,12 +21,13 @@ state error {
     error_exit : turn off Error LED
 }
 
-state stop {
-    stop_entry -down-> stop_run
-    stop_run -up-> stop_exit
-    stop_entry : start Error LED timer
-    stop_run : wait for VBUS to be disconnected
-    stop_exit : stop Error LED timer
+state vbus {
+    vbus_entry -down-> vbus_run
+    vbus_run -up-> vbus_exit
+    vbus_entry : start Error LED timer
+    vbus_run : wait for VBUS to be disconnected
+    vbus_exit : stop Error LED timer
+    vbus_exit : start checking for VBUS aain
 }
 
 state init {
@@ -36,36 +37,42 @@ state init {
     init_entry : Configure Interfaces 
     init_entry : Read device config from NVM
     init_entry : Associate and initialize Callbacks
+    init_entry : initialize bluetooth
+    init_entry : check if sensor is connected
     init_run : go to run state
+    init_exit : initialize pwm leds to be zero
     init_exit : begin heartbeat LED
+    init_exit : begin VBUS checking timer
 }
 
 state run {
     run_entry -> run_run
     run_run -> run_exit
     run_run : wait for save button event
+    run_run : wait for send button event
 }
 
 state read {
     read_entry -> read_run
     read_run -> read_exit
+    read_entry : check that VBUS is not connnected
     read_entry : Read 100 Hz ADC in 
     read_entry : Read 500 Hz ADC in
-    read_entry : Read Pressure Info in
-    read_entry : Read Battery ADC in
+    read_entry : Reazd Pressure Info in
     read_entry : Convert ADC values to mV 
-    read_entry : Convert mV to corresponding brightness and pressure
-    read_entry : Turn on LEDs at appropriate brightness
-    read_entry : update array with pressure and LED brightness
-    read_run : wait for send button event
+    read_run : wait for arrays to be filled with data
+    read_run : Convert mV to corresponding brightness and pressure
+    read_run : Turn on LEDs at appropriate brightness
+    read_run : update array with pressure and LED brightness
     read_run : go back to run state
-    read_exit : turn 100 Hz and 500 Hz LEDs off
 }
 
 state send {
     send_entry -> send_run
     send_run -> send_exit
     send_entry : turn off LEDs
+    send_entry : Read Battery ADC in
+    send_run : format array for export
     send_run : send array via Bluetooth to app
     send_run : send battery level via Bluetooth to app
     send_run : return to run state