SunFounder Thales Kit, Manual

Page: 163 / 167

SunFounder Thales Kit for Raspberry Pi Pico, Release 1.0
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// to calculate the note duration, take one second divided by the note type.
//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
int noteDuration = 1000 / noteDurations [i];
tone ( 15 , melody [i], noteDuration);
//to distinguish the notes, set a minimum time between them
//the note's du30% seems to work well
int pauseBetweenNotes = noteDuration
*
1.30 ;
delay (pauseBetweenNotes);
}
}
First read the value of the button in loop(). When the button is pressed,
buttonState
will be equal to 1.
In the for() statement, a tone() is used to let the buzzer play one note at a time, and then after 8 times, the buzzer can
play the notes in the array melody[] one by one.
tone ( 15 , melody [i], noteDuration);
• 15 : The pin on which to generate the tone (the buzzer pin).
•
melody [i]
: The frequency of the tone in hertz.
• noteDuration : The duration of the tone in milliseconds (optional).
else
{
noTone ( 15 ); //if the button is released, stop the tone playing.
}
Stops the generation of a square wave triggered by tone(). Has no effect if no tone is being generated.
The new projects for Arduino are still being updated continuously.
4.2. Projects 159