Hi,Find this | Microcontroller › Arduino › HCSR04 distance measuring sensor › Hi,Find this January 5, 2015 at 8:51 am #12497 AJISH ALFREDParticipant Hi, Find this link http://www.engineersgarage.com/contribution/experts/distance-finder-based-at89s52-and-ultra-sonic-sensors-hc-sr04
