Ready to add audio to your next project?
This small breakout board couples a small electret microphone with a 100x opamp to amplify the sounds of voice, door knocks, etc loud enough to be picked up by a microcontroller's Analog to Digital converter.
Unit comes fully assembled as shown.
Works from 2.7V up to 5.5V.

 

Documents:

• Schematic
• Eagle Files
• Example PIC ADC Code
• Datasheet (OPA344)
• Datasheet (Mic)
• Example Audio LED control project by Adam Greig