diff --git a/robomaster_pi/conn_vel.py b/robomaster_pi/conn_vel.py
index e0b26e8005e43dcd848ef306d07c9b3f4c6ca424..1771eb432c83d6a4a53cef382f2047a2795fa3c4 100644
--- a/robomaster_pi/conn_vel.py
+++ b/robomaster_pi/conn_vel.py
@@ -30,6 +30,7 @@ class vel_from_ros_node(Node):
 
 
     def check_connection():
+        print("ja")
         self.response = self.isConnected()
         if(self.response =! True):
             self.my_ep_chassis.drive_speed(x = 0, y = 0, z = 0.5)