Idahowalker, i am just mounting it on car chassis both at the front, car chassis is of custom size so 1 sensor cannot cover the whole view.
wvmarie, i am sorry sir i didn't read the guidelines first .. i edit the post and add the ultrasonic sensor code
P.s : i have attached the whole sketch in this post.. thanks again for helping me out
mergingTime.ino (11 KB)