from HCSR04 import HCSR04
import time
sr04 = HCSR04(trigPin = 25, echoPin = 26 )
try :
    while True :
        try :
            print ('Distance:' ,sr04.distance(), 'cm' )
        except Exception as e:
            print (e.args [0])
        time.sleep (1)
except KeyboardInterrupt :
    print ('Program stopped!' )