 Program
   BeforeStart
     subscribe_top≔"QetmbL3kuHpPdV8xGVxD/instance1/subs"
     loop≔ True 
   Robot Program
     var_1≔mqtt_initialize_anonymous("test.mosquitto.org", 1883)
     var_2≔mqtt_connect()
     var_3≔mqtt_subscribe(subscribe_top)
     Loop loop
       result≔mqtt_get_message(subscribe_top)
       If result≟"STOP"
         loop≔ False 
       Wait: 0.25
     var_4≔mqtt_disconnect()
