Let's Make Robots!

using a microphone as sensor

I have a couple of headset microphones, and I would like to use them as sound sensors..

I tried to amplify the signal using LM386, but it doens´t work.. can someone help me on this?

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
If they are electret microphones then they need the input circuit to supply powr to them.

thanx OddBot!

i googled 'electret microphones' and found this link with some schematics... will try them soon:

http://www.epanorama.net/circuits/microphone_powering.html