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Topic: Get volume. (Read 912 times) previous topic - next topic

MDTech-us_MAN

I want my Arduino to do some action when there is a specific volume for some period of time. I need to get the volume from a microphone (would be nice if you could point me to a nice mic that would work).

Can you give me some code or point me to a reference, please?

Maxwell
Maxwell D.

Owner and Webmaster of www.MDTech.us

Magician

http://coolarduino.wordpress.com/2013/01/09/audio-vu-meter/
May be too complex, graphic LCD and math, if you are novice. I've seen a shield for arduino, that does same things in hardware - rectifier, can't find a link.

MDTech-us_MAN

I would prefer to just connect a simple mic to the arduino instead of getting a shield, because I want this to be as compact as possible and also for a couple other reasons. I just need a working mic and instructions, please.

Maxwell.
Maxwell D.

Owner and Webmaster of www.MDTech.us

Magician

You can interface mic (I mean common electret mic) directly to arduino, only if on-board AVR chip has an amplifier. I have a project with Leonardo. In case if your arduino with AtMega328 you need an amplifier, at least one low power / high gain transistor with couple resistors and caps.  Better OPA.

MDTech-us_MAN

Sorry to say, but I am a newbie at Arduino. So, can you please give me more specific instructions. I'm really from the software programming world but, I am fine with soldering.
Maxwell D.

Owner and Webmaster of www.MDTech.us

Magician

What kind of arduino do you have?
http://coolarduino.wordpress.com/2012/06/22/audio-input-to-arduino/

https://www.google.com/search?client=opera&q=electret+mic+amplifier+transistor&sourceid=opera&ie=utf-8&oe=utf-8&channel=suggest

http://jimlaurwilliams.org/wordpress/?p=2501

MDTech-us_MAN

#6
Apr 07, 2013, 02:59 am Last Edit: Apr 07, 2013, 03:02 am by MDTech-us_MAN Reason: 1
I have an Arduino Uno.

I am really sorry I am being a nut-head, but can you give me step-by-step instructions?   :. :smiley-mr-green: :smiley-sad-blue: :smiley-red: :~
Maxwell D.

Owner and Webmaster of www.MDTech.us

Magician

Nothing can I do, I'm really bad as an instructor.  Try to search on this: http://www.instructables.com/ 

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