I got 2 Ultrasonic sensors and i placed them like 50cm from each and i want to detect the direction in which they are triggerd. An example if a person moves from right through both sensors, i get a message person comes from right. If the person comes from left i want to get a message "person comes from left".
pls can anyone help me, i know how to detect if a person triggers a sensor but i cant write this simple query...