🚧 Adds checking and reconnecting when wlan is down

peripheral/main.py

@@ -17,6 +17,7 @@ class App:
 
     opened: bool = False
     previously_opened: bool = False
+    wlan: network.WLAN
 
     led = Pin(15, Pin.OUT)
     trigger = Pin(2, Pin.OUT)
@@ -55,18 +56,18 @@ class App:
 
     def connect(self):
         print("Connecting to Wi-Fi...")
-        wlan = network.WLAN(network.STA_IF)
+        self.wlan = network.WLAN(network.STA_IF)
 
-        wlan.active(False)
+        self.wlan.active(False)
         utime.sleep_ms(250)
-        wlan.active(True)
+        self.wlan.active(True)
         utime.sleep_ms(250)
 
-        wlan.connect(self.ssid, self.password)
+        self.wlan.connect(self.ssid, self.password)
         utime.sleep_ms(100)
 
         retry_count = 0
-        while not wlan.isconnected():
+        while not self.wlan.isconnected():
             if retry_count >= MAX_CONNECTION_RETRIES:
                 print("Max connection retries reached")
                 exit(1)
@@ -80,12 +81,12 @@ class App:
 
             if retry_count % 10 == 0:
                 print("Attempting to restart connection...")
-                wlan.connect(self.ssid, self.password)
+                self.wlan.connect(self.ssid, self.password)
                 for _ in range(10):
                     self.led.toggle()
                     utime.sleep_ms(50)
 
-        print(f"Connected with IP {wlan.ifconfig()[0]}")
+        print(f"Connected with IP {self.wlan.ifconfig()[0]}")
         self.update_server()
 
     def health_check_server(self):
@@ -139,6 +140,9 @@ class App:
         i = 0
         while True:
             try:
+                if not self.wlan.isconnected():
+                    self.connect()
+
                 distance = self.measure_distance()
                 self.opened = distance >= THRESHOLD_DISTANCE