nidhin i need ur help in making a similar project but i dont have to display it i just have to convert the range into vibration like maximum range gives minimum vibrations and min range gives maximum vibration using pwm can you provide somthing on the it will be highly appriciable i am using 6 volt dc motor using maimum 5 volt range as entier circuit will be powered by a 9 volt battry and i am using hc sr04 ultrasonic range module and atmel 89s51 as processor please help as i am new to c programming and dont know how to do all this thanks in advance