Project Brief

Forestry researchers need a sound recording device that can identify harmful bark beetles within trees to help them better understand their behaviors and weaknesses. They seek to use audio frequencies to locate and identify such species. The current technology is too expensive and not portable. With this project, we want to create a system that interfaces with tree bark to retrieve the audio signals within a given tree and have the rest of the system process it into a microcontroller that can take the audio data and analyze it.

Objectives

Create an audio interface with a probing sensor

Collect audio signals from the tree using Piezoelectric Sensor

Amplify the analog signals with an operational Amplifier

Convert them into a digital format using a stereo codec

store that recorded signal on an SD Card