Arduino Forum

Using Arduino => Audio => Topic started by: tac-north on Feb 14, 2011, 11:01 pm

Title: Arduino as an audio switch
Post by: tac-north on Feb 14, 2011, 11:01 pm
I was out plowing snow with my utv a week or so ago with my ipod and when I got back to the house my spouse commented that she had tried to get me on the FRS radio and I hadn't answered.  I day or so later it occured to me that perhaps I could use Arduino and some audio switching IC's (from somewhere like Maxim) to have a 'smart' switch that would let the ipod or stereo play until a call came in on the FRS or my cell phone where upon it would mute the music and connect me to the radio or cell call. 

I tried a quick search of the forum, but didn't find anything. What would be a good starting place ??
Title: Re: Arduino as an audio switch
Post by: Grumpy_Mike on Feb 15, 2011, 06:50 pm
Looks like a job for analogue multiplexers.
A good start is this file:-
http://www.google.co.uk/url?sa=t&source=web&cd=4&sqi=2&ved=0CDQQFjAD&url=http%3A%2F%2Fwww.intersil.com%2Fdata%2Fan%2Fan1034.pdf&rct=j&q=analogue%20multiplexing%20and%20matrix%20%20switch&ei=lrxaTaShNYnQhAfsnsGzDQ&usg=AFQjCNHeKNGmRr1r5--ARM09Ey7QOx1zGg&cad=rja (http://www.google.co.uk/url?sa=t&source=web&cd=4&sqi=2&ved=0CDQQFjAD&url=http%3A%2F%2Fwww.intersil.com%2Fdata%2Fan%2Fan1034.pdf&rct=j&q=analogue%20multiplexing%20and%20matrix%20%20switch&ei=lrxaTaShNYnQhAfsnsGzDQ&usg=AFQjCNHeKNGmRr1r5--ARM09Ey7QOx1zGg&cad=rja)