[wifi] check know wifi

wifi_manager.py

@@ -18,7 +18,7 @@ logging.basicConfig(
     format='%(asctime)s - %(levelname)s - %(message)s'  # 日志的格式
 )
 
-wifi_credential_file = '~/.config/wifi_credentials.json'
+wifi_credential_file = '/home/orangepi/.config/wifi_credentials.json'
 
 try:
     from takway.board import OrangePi