help whit ultrasonic sensor please

hello, i have a ultrasonic sensor model hy-srf05, i have used many programs different but not work, also i have used libraries for example ultrasonic.h and newping.h but not work. could you help me please?

If you wire it according to directions and use the NewPing library correctly then you should get good results. If you are not getting good results it is possible that your rangefinder is faulty and should be returned for refund or replacement.

ok thank i,m going to prove again, but i need a microcontroler for the sensor??? thank