Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: udayhere2002 on November 03, 2007, 03:41:22 AM

Title: sound receiver...............
Post by: udayhere2002 on November 03, 2007, 03:41:22 AM

i want to make a robot that would detect a sound source of 1000hz among many frequencies and go near it...
actually i was facing problem...wat device or circuit should i use to receive the sound source....so that i can connect dis signal to a filter and carry on....actually im thinking of a microphone but hw would i connect dis to my circuit....can any 1 help me........
 1

Title: Re: sound receiver...............
Post by: Admin on November 07, 2007, 07:22:30 PM

What you want is something called an audio bandpass filter (http://www.google.com/search?sourceid=navclient&aq=t&ie=UTF-8&rls=DGUS,DGUS:2006-11,DGUS:en&q=audio+bandpass+filter).

Title: Re: sound receiver...............
Post by: Kohanbash on November 07, 2007, 09:23:20 PM

Hi
You can feed your microphone into a tone decoder circuit. Essentially this circuit is the bandpass that the admin spoke about plus it can trigger an output line when that frequency is detected.