Seeed Grove Beginner Kit - Page 41

Serial.println(soundState);
Serial port print the sound sensor’s value. So you open the serial monitor on the IED interface,
and you see the value of the output sensor.
Demo Effect and Serial Print Result:
The LED module will light up if the surrounding is loud enough.
Breakout Guide
Use Grove cables to connect the Grove LED to Seeeduino Lotus’s digital signal interface D4,
Connect the Grove Sound Sensor to Seeeduino Lotus’s analog signal interface A2.
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Grove Beginner Kit For Arduino®