Datasheet

6
void pinInit()
{
pinMode(SPEAKER,OUTPUT);
digitalWrite(SPEAKER,LOW);
}
void sound(uint8_t note_index)
{
for(int i=0;i<100;i++)
{
digitalWrite(SPEAKER,HIGH);
delayMicroseconds(BassTab[note_index]);
digitalWrite(SPEAKER,LOW);
delayMicroseconds(BassTab[note_index]);
}
}
Note: Due to the influence of the capacitance, the module can only output the bass signal, and the treble
is unable to emit.