How to use a grove speaker without using delayMicroseconds?

Question

is there another way to replace delayMicroseconds(BassTab[note_index]) as I cannot have delays in my loop due to the need of having multi-tasking in my sketch.

Grove speaker: http://www.seeedstudio.com/depot/Grove-Speaker-p-1445.html

/*macro definition of Speaker pin*/
#define SPEAKER 8
int BassTab[]={1911,1702,1516,1431,1275,1136,1012};//bass 1~7
void setup() 
{
 pinMode(SPEAKER,OUTPUT);
 digitalWrite(SPEAKER,LOW);
}
void loop()
{
 sound(5);
 delay(5000); //Wait 5second and play the sound again
}
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]);
 }
}

Answer 1

It's just a small amplifier and speaker - what you put into the SIG pin gets amplified and sent out the speaker.

Instead of doing the audio generation manually like that I would suggest using the tone() function which will generate an audio tone at a desired frequency in the background.

• https://www.arduino.cc/en/Reference/Tone