I would like to get a microphone and have a LED light up when a note (say red for c, green for d) is played. 

has anyone done this work before. can someone recommend a good mic.

is there any sound library's out there for comparing the wave to the note.

Thanks for your help

Danny

I am trying to get my Adafruit ILI9341 TFT with touch shield to work with my Netduino Plus 2. I have found a library over at http://netduinohelpers.codeplex.com/ but the projects seem to all be fore Frame work 4.1. I have tried to rebuild the project into 4.2 but I get errors like "PWN could not be found" are you missing a reference. this seem so come from the fact that Microsoft.SPot.Hardware does not have PWN in 4.2. I had seen here I need to remove that reference and just use SecretLabs.NETMF.Hardware but then I loos access to other items that are referenced in the project. CPU, Port and the like.

just so you know if I try to run the project right out of the box. I get when I try to deploy to the device telling me it need 4.1.0.0 versions of the some of the references.

Please help. I have been having vary good luck with my Netduino and really enjoying it. And I am a .net person. but I need my project to work on it. If I cant get this running I will have to move on.

Thanks

Danny