Microphone Amplifier usage

[Masiar]

Hi,
I'm a newbie in electrical stuff, so here I'm asking. I bought a Raspberry Pi as well as some sensors. I have also one of these: http://www.adafruit.com/products/1063. I noticed on adafruit there is a tutorial on how to use that microphone, but it seems they are using Arduino. My question is: can I use it on Raspberry Pi too? If yes, is there a tutorial on how to set it up? I don't want to burn my Pi!

[Masiar]

Hi,
in the end I tried to build something. I connected VCC to 3v3, GND to ground and OUT to the pin GPIO17.
I tried, with a while True, to print the value of gpio.input(17) but apparently it is always one. Any ideas what's going on? Here is the full code:

Code: Select all

import RPi.GPIO as gpio
gpio.setmode(gpio.BCM)
gpio.setup(17, gpio.IN)

while True:
    input = gpio.input(17)
    print(input)

[Burngate]

The problem you have is that the output of the microphone is an analogue signal sitting on 1v6 or there-abouts.
The Pi's GPIO takes that 1v6 and reads it as a 1. Only if the sound is loud enough will the output go low enough for the Pi to see a 0, and even then you'll have to be lucky enough to catch the audio at the right time, during the negative part of the waveform rather than the positive part.

[Masiar]

Hi, thanks for the answer! Is there a tutorial online how to wire the ADC? I'm really not familiar with that either, sorry.

[Masiar]

Sorry for the bump!
I would like to ask where can I buy an ADC and which one should I buy for my RPi!