Refactor wifi connection into separate file

pico/src/connection.py

@@ -0,0 +1,46 @@
+import network
+import asyncio
+
+from log import Logger, Color
+from statusled import STATUS_LED
+
+async def ensure_network():
+    from secret import SSID, PASSWORD
+    log = Logger("net", Color.BLUE)
+
+    nic = network.WLAN(network.STA_IF)
+    log.info("setting up WLAN interface...")
+    nic.active(True)
+    while not nic.active():
+        await asyncio.sleep(0.1)
+    log.info("connecting...")
+    nic.connect(SSID, PASSWORD)
+
+    logged = False
+
+    status_name = {
+        network.STAT_CONNECT_FAIL: "CONNECT_FAIL",
+        network.STAT_CONNECTING: "CONNECTING",
+        network.STAT_IDLE: "IDLE",
+        network.STAT_NO_AP_FOUND: "NO_AP_FOUND",
+        network.STAT_WRONG_PASSWORD: "WRONG_PASSWORD"
+    }
+
+    while True:
+        if (status := nic.status()) == network.STAT_GOT_IP:  # pyright: ignore[reportAny]
+            STATUS_LED.status(2)
+            if not logged:
+                logged = True
+                log.success(f"Got IP: {nic.ifconfig()!r}")
+            rssi = nic.status("rssi")  # pyright: ignore[reportAny]
+            log.info(f"{rssi=}")
+        else:
+            logged = False
+            STATUS_LED.status(1)
+            log.warning("status={}".format(status_name.get(status, f"UNKNOWN ({status})")))  # pyright: ignore[reportAny]
+            if status == network.STAT_CONNECT_FAIL or status == network.STAT_NO_AP_FOUND:
+                log.info("retrying in 3s...")
+                await asyncio.sleep(3)
+                nic.connect(SSID, PASSWORD)
+        
+        await asyncio.sleep(1)

pico/src/main.py

@@ -1,53 +1,9 @@
-import network
 import asyncio
 
-from statusled import StatusLED
+from statusled import STATUS_LED
 from log import Logger, Color
 from sensors.ultrasonic import UltraSonicSensor
-
+from connection import ensure_network
-STATUS_LED = StatusLED()
-
-async def ensure_network():
-    from secret import SSID, PASSWORD
-    log = Logger("net", Color.BLUE)
-
-    nic = network.WLAN(network.STA_IF)
-    log.info("setting up WLAN interface...")
-    nic.active(True)
-    while not nic.active():
-        await asyncio.sleep(0.1)
-    log.info("connecting...")
-    nic.connect(SSID, PASSWORD)
-
-    logged = False
-
-    status_name = {
-        network.STAT_CONNECT_FAIL: "CONNECT_FAIL",
-        network.STAT_CONNECTING: "CONNECTING",
-        network.STAT_IDLE: "IDLE",
-        network.STAT_NO_AP_FOUND: "NO_AP_FOUND",
-        network.STAT_WRONG_PASSWORD: "WRONG_PASSWORD"
-    }
-
-    while True:
-        if (status := nic.status()) == network.STAT_GOT_IP:  # pyright: ignore[reportAny]
-            STATUS_LED.status(2)
-            if not logged:
-                logged = True
-                log.success(f"Got IP: {nic.ifconfig()!r}")
-            rssi = nic.status("rssi")  # pyright: ignore[reportAny]
-            log.info(f"{rssi=}")
-        else:
-            logged = False
-            STATUS_LED.status(1)
-            log.warning("status={}".format(status_name.get(status, f"UNKNOWN ({status})")))  # pyright: ignore[reportAny]
-            if status == network.STAT_CONNECT_FAIL or status == network.STAT_NO_AP_FOUND:
-                log.info("retrying in 3s...")
-                await asyncio.sleep(3)
-                nic.connect(SSID, PASSWORD)
-        
-        await asyncio.sleep(1)
-
 
 async def read_sensor():
     log = Logger("tank", Color.CYAN)

pico/src/statusled.py

@@ -30,3 +30,5 @@ class StatusLED:
                 await asyncio.sleep(t_blink)
             
             await asyncio.sleep(t_2)
+
+STATUS_LED = StatusLED()