Implement conecting to network

pico/.gitignore

@@ -1,2 +1,3 @@
 .venv
 typings
+src/secret.py

pico/secret.py.example

@@ -0,0 +1,2 @@
+SSID = "AzureDiamondNet"
+PASSWORD = "hunter_2"

pico/src/main.py

@@ -1,5 +1,6 @@
 from machine import Pin
 import machine
+import network
 import time
 import asyncio
 
@@ -63,8 +64,34 @@ class UltraSonicSensor:
     
 
 
+async def ensure_network():
+    from secret import SSID, PASSWORD
+
+    nic = network.WLAN(network.STA_IF)
+    print("[net] setting up WLAN interface...")
+    nic.active(True)
+    print("[net] connecting...")
+    nic.connect(SSID, PASSWORD)
+
+    logged = False
+
+    while True:
+        if nic.status() == network.STAT_GOT_IP:
+            STATUS_LED.status(2)
+            if not logged:
+                logged = True
+                print(f"[net] Got IP: {nic.ifconfig()!r}")
+            rssi = nic.status("rssi")  # pyright: ignore[reportAny]
+            print(f"[net] {rssi=}")
+        else:
+            STATUS_LED.status(1)
+        
+        await asyncio.sleep(1)
+
+
 async def _main():
     asyncio.create_task(STATUS_LED.task())
+    asyncio.create_task(ensure_network())
     sensor = UltraSonicSensor(22, 21)
     while True:
         d = sensor.query_mm()