For the location detector, the Basic Stamp microcontroller will send the Ping ))) sensor a pulse to start the measurement.
Ping ))) sensor sends a brief chirp with its ultrasonic speaker An ultrasonic pulse is sent out by the Ping))) distance sensor,
which then waits for it pulse to return as depicted in Fig. 9. Location is determine by measuring the time taken for the echo
to return to its ultrasonic microphone.