I need to construct a robot that will be able to detect sound in order to move while at the same time avoiding the possible obstacles that exist.
So far my main problem is how to make my robot detect the sound. I was thinking of using 3-4 electret microphones for this purpose but a relatively complex circuit is needed in order to use them. Something like this for example http://wiring.org.co/learning/basics/microphone.html
I was wondering if there is an easier way to make my robot detect the sound direction.
Thanks a lot in advance!