Rename INTERFACE to LISTEN_INTERFACE for consistency and update settings.env.default

.gitignore

@@ -1 +1,2 @@
-settings.env
+settings.env
+__pycache__/

listener.py

@@ -8,7 +8,7 @@ from dotenv import load_dotenv
 
 # === Load ENV ===
 load_dotenv(dotenv_path=os.path.expanduser("~/wifi_test/settings.env"))
-INTERFACE = os.getenv("INTERFACE", "wlan0")
+LISTEN_INTERFACE = os.getenv("LISTEN_INTERFACE", "wlan0")
 
 # === Globals ===
 clients_per_channel = defaultdict(set)
@@ -64,13 +64,13 @@ def stop_sniff(signum, frame):
 # === Main ===
 if __name__ == "__main__":
     signal.signal(signal.SIGINT, stop_sniff)
-    print(f"[+] Listening on interface {INTERFACE} (press Ctrl+C to stop)")
+    print(f"[+] Listening on interface {LISTEN_INTERFACE} (press Ctrl+C to stop)")
 
     # Start sniffing in a background thread
     try:
         while running:
             sniff(
-                iface=INTERFACE,
+                iface=LISTEN_INTERFACE,
                 prn=handle_packet,
                 store=False,
                 monitor=True,

settings.env.default

@@ -6,6 +6,7 @@ NUM_SAMPLES=5
 TIME_BETWEEN=15m
 LEAD_TIME=90s
 INTERFACE=wlan0
+LISTEN_INTERFACE=wlan1
 PING_COUNT=25
 PING_TARGET=1.1.1.1
 BANDWIDTH=