Add ESP32 connection check script

demo-single-esp32s3/check_esp32.py

@@ -0,0 +1,34 @@
+"""
+Simple script to check ESP32 connection status.
+Run this to see if your ESP32 is connected to WiFi.
+"""
+import serial
+import time
+import sys
+
+def check_esp32(port='COM5', baud=115200):
+    print(f"Checking ESP32 on {port} at {baud} baud...")
+    print("Press Ctrl+C to exit\n")
+
+    try:
+        ser = serial.Serial(port, baud, timeout=1)
+        time.sleep(2)  # Wait for connection
+
+        # Read some output
+        for _ in range(20):
+            if ser.in_waiting:
+                line = ser.readline().decode('utf-8', errors='ignore').strip()
+                if line:
+                    print(line)
+            time.sleep(0.5)
+
+    except serial.SerialException as e:
+        print(f"Error: {e}")
+        print("\nMake sure:")
+        print("1. ESP32 is connected to your PC via USB")
+        print("2. No other program is using the COM port")
+        print("3. You're using the correct COM port (e.g., COM5)")
+
+if __name__ == "__main__":
+    port = sys.argv[1] if len(sys.argv) > 1 else 'COM5'
+    check_esp32(port)