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HELP PLEASE WITH ARDUINO AUDIO

e14 Contributor

So I have a project due in a few days and I'm trying to build a frequency detector following this tutorial http://www.instructables.com/id/Arduino ... /?ALLSTEPS

 

I'm currently lacking the following parts:

(x1) 10uF electrolytic capacitor Digikey P5134-ND

(x1) 47nF ceramic capacitor Digikey P4307-ND

 

I need any advice for fast (overnight) delivery or help altering the code (in the link attached) to omit these items.

 

My project is due on the 12th, so PLEASE help quickly.

 

Thank you so much in advance!!!

  • 0

    to get you working, even if not perfect, anything from 4.7 - 20 or more uF will work for the 10uF as it is simply working as a low pass filter and dc decoupling

     

    the 47nF being a high pass could be two 100nF in series if you have them, but basically anything from 20nF to 100nF should get you working

     

    the thing to remember about caps  is they work the opposite to resistors when putting them together. If you put two caps in parallel then the value is the sum of them both (Like resistors in series), if you put two in series then the value is same as resistors in parallel so look at what you have and make one up from those.