diff --git a/wifi_manager.py b/wifi_manager.py
index fdb1a4f..42d1472 100644
--- a/wifi_manager.py
+++ b/wifi_manager.py
@@ -15,14 +15,14 @@ except ImportError:
     led_enabled = False
     print("Error importing OrangePi")
 
+# blue: APP
+# red: hotspot
 
 app = Flask(__name__)
 
 def close_app():
     if led_enabled:
-        orangepi.set_led_off('red')
-        
-    
+        orangepi.set_led_off('blue')
         
     # 获取当前Flask应用程序的进程ID
     flask_pid = os.getpid()
@@ -41,7 +41,7 @@ def start_hotspot():
     try:
         subprocess.Popen('sudo systemctl start hotspot.service', shell=True)
         if led_enabled:
-            orangepi.set_led_on('blue')
+            orangepi.set_led_on('red')
     except subprocess.CalledProcessError as e:
         print(f"{datetime.datetime.now()}: Error starting create_ap service: {e}")
 
@@ -50,6 +50,8 @@ def close_hotspot():
     try:
         subprocess.Popen('sudo systemctl stop hotspot.service', shell=True)
         print(f"{datetime.datetime.now()}: Stopping create_ap service")
+        if led_enabled:
+            orangepi.set_led_off('red')
     except subprocess.CalledProcessError as e:
         print(f"{datetime.datetime.now()}: Error stopping hotspot: {e}")
     
@@ -125,56 +127,6 @@ def scan_wifi():
             f.write(f"{wifi['ssid']},{wifi['signal']}\n")
     
     return wifi_list
-'''
-
-def scan_wifi():
-    subprocess.run(['nmcli', 'dev', 'wifi', 'rescan'], check=True)
-    output = subprocess.check_output(['nmcli', 'dev', 'wifi'])
-        
-    wifi_list = []
-    lines = output.decode().splitlines()[1:]
-    for idx, line in enumerate(lines):
-        print(f"{line}")
-        
-        for i, column in enumerate(line):
-            print(f"{i}: {column}")
-        close_app()
-        # 分割字符串以空格为分隔符
-        columns = line.split()
-
-        # 提取第一列和第三列的值
-        mac_address = columns[0]
-        
-        ssid = " ".join(columns[1:3])
-        if "Infra" in ssid:
-            ssid = ssid.replace(" Infra", "")
-        if ":" in ssid:
-            # "72:A6:CC:8C:89:6C Takway-AI" 
-            # 去除字符串中的MAC地址
-            ssid = re.sub(r'\b\w{2}(:\w{2}){5}\b', '', ssid)
-
-        # 提取第六列的强度值
-        last_info = columns[4:8]
-        # 去除所有的空格
-        columns = line.replace(" ", "")
-        # 提取"Mbit/s"后的三位以内数字
-        strength = int(columns[columns.index("Mbit/s")+6:columns.index("Mbit/s")+8])
-        
-        # print("MAC地址:", mac_address)
-        # print("SSID:", ssid)
-        # print("强度:", strength)
-        
-        wifi_list.append({'ssid': ssid, 'signal': strength})
-        if len(wifi_list) == 15:
-            break
-    
-    # save wifi_list to file
-    with open('wifi_list.txt', 'w') as f:
-        for wifi in wifi_list:
-            f.write(f"{wifi['ssid']},{wifi['signal']}\n")
-    
-    return wifi_list
-'''
 
 # 连接 Wi-Fi
 def connect_wifi(ssid, password):