diff --git a/ceshi.py b/ceshi.py
index d2c5ca0..810ec11 100644
--- a/ceshi.py
+++ b/ceshi.py
@@ -409,7 +409,9 @@ class UPLOAD:
     def t1(self):
         # run_with_client(self.client)
         while (1):
-            self.client.publish('demo', 'test',qos=0)
+            self.client.publish('demo', 'test', qos=0)
+            time.sleep(60)
+
 
 if __name__ == '__main__':
     up = UPLOAD()