first and working ethernet

2025-07-26 21:48:13 -04:00
commit 473f9013c0
58 changed files with 3405 additions and 0 deletions
--- a/network_scan.py
+++ b/network_scan.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python3
+"""
+Scan the local network to see what devices are active
+"""
+
+import subprocess
+import sys
+import ipaddress
+
+def scan_network():
+    """Scan the 192.168.1.x network"""
+    print("Scanning 192.168.1.0/24 network...")
+    
+    # Use nmap if available, otherwise use ping
+    try:
+        result = subprocess.run(['nmap', '-sn', '192.168.1.0/24'], 
+                              capture_output=True, text=True, timeout=30)
+        if result.returncode == 0:
+            print("Active hosts (nmap):")
+            print(result.stdout)
+        else:
+            print("nmap failed, trying ping scan...")
+            ping_scan()
+    except FileNotFoundError:
+        print("nmap not found, using ping scan...")
+        ping_scan()
+
+def ping_scan():
+    """Ping scan 192.168.1.1-254"""
+    active_hosts = []
+    
+    for i in range(1, 255):
+        ip = f"192.168.1.{i}"
+        try:
+            result = subprocess.run(['ping', '-c', '1', '-W', '1000', ip], 
+                                  capture_output=True, timeout=2)
+            if result.returncode == 0:
+                active_hosts.append(ip)
+                print(f"✓ {ip} is active")
+        except subprocess.TimeoutExpired:
+            pass
+        except Exception:
+            pass
+    
+    print(f"\nFound {len(active_hosts)} active hosts:")
+    for host in active_hosts:
+        print(f"  {host}")
+
+def check_arp():
+    """Check ARP table for RP2040-ETH"""
+    print("\nChecking ARP table for RP2040-ETH...")
+    try:
+        result = subprocess.run(['arp', '-a'], capture_output=True, text=True)
+        lines = result.stdout.split('\n')
+        rp2040_found = False
+        
+        for line in lines:
+            if '192.168.1.20' in line or '192.168.1.201' in line:
+                print(f"Found: {line}")
+                rp2040_found = True
+        
+        if not rp2040_found:
+            print("RP2040-ETH not found in ARP table")
+            
+    except Exception as e:
+        print(f"ARP check failed: {e}")
+
+if __name__ == "__main__":
+    scan_network()
+    check_arp()
+    
+    print("\nNext steps:")
+    print("1. Check if 192.168.1.201 appears in the scan")
+    print("2. Try: ping 192.168.1.201")
+    print("3. Monitor serial output from RP2040-ETH for debug info")
+    print("4. Check ethernet cable connection")