How to reduce delay in sensing distance using Arduino?

Using Arduino Project Guidance
#1

Hi,

I am working on ultrasonic sensor to sense distance. I am looking for code that does not use much delay to sense distance. Please help me. Thanks.

Joe

#2

You have to leave a reasonable amount of time for the pulse to travel out and back, allowing for a speed of 343 metres per second each way or it will take 1 second to reflect off an object 171 metres away.

As far as I am aware, pulses are not coded so reducing the interval might cause the device to return distance from a reflection transmitted by an earlier pulse but measured from the last one.

Rgds,

Neil.

#3

Do you have working code already? How long does it take?

#4

Download the NewPing library.

The example code works perfectly.

#5

arduinoaleman:
Download the NewPing library.

The example code works perfectly.

Perhaps you meant NewPing library

#6