tone(frequency, duration)

Set the onboard buzzer to sound.

Parameter

Parameters	Type	Description
frequency	unsigned int	Frequency at which sound is produced, in HZ
duration	unsigned long	The duration of the sound, in milliseconds

Example

Use the uKit Explore v2 board to control the onboard buzzer to play sound 131Hz for 400ms

#include "uKitExplore2.h"
void setup() {
    Initialization();
    tone(131,400);
}
void loop() {
    
}