32.768 kHz Crystal + 20pF - RTC Watch Crystal pulse sensor The Sound Sensor Analog is

The Sound Sensor Analog is a sound sensor with analog output designed for sound detection

and a 6-axis IMU (accelerometer + gyro)—all while keeping the familiar UNO form factor for shields and classroom workflows

The device compatible with DS3231 encapsulation and function

USB connection: useful for direct testing

1 Serial Port Expander code

32.768 kHz Crystal + 20pF - RTC Watch Crystal pulse sensor The Sound Sensor Analog is32. 768 KHz Crystal with 20pF Capacitor Load The 32. 768 KHz Crystal (20pF load) is the standard timekeeper crystal used in real time clocks (RTCs), watches, and microcontrollers that need accurate timekeeping. The frequency 32,768 Hz is exactly 215, which divides evenly down to 1 Hz making it perfect for counting seconds. Technical specifications Frequency 32. 768 KHz Load capacitance 20 pF Use RTC oscillator, timekeeping