Library-Sound-Sensor-Code A group project where the purpose was to incorporate the Arduino Circuit Playground and it's sensors, my team settled on creating a library sound sensor. I worked on the code ...

How It Works Microphone picks up sound waves. Signal is amplified and passed to a comparator. If the sound level exceeds the threshold (set by a potentiometer), output is HIGH. Arduino reads the ...

Based on Arduino, a security system model is presented in this paper. Knock pattern is produced with the construction of piezo sensor and Arduino series board. The Knock detector is a distinctive way ...