ESP32 Starter Kit
Comparison Diagram of Flat, Natural and Sharp
Code
/*
keyestudio ESP32 Inventor Learning Kit
Project 8.2 Music Performer
http://www.keyestudio.com
*/
int beeppin = 5; //Define the speaker pin to IO5
// doremifasolasi
int doremi[] = {262, 294, 330, 370, 392, 440, 494, //Falt 0-6
523, 587, 659, 698, 784, 880, 988, //Natural 7-13
1047,1175,1319,1397,1568,1760,1967}; //Sharp 14-20
int happybirthday[] = {5,5,6,5,8,7,5,5,6,5,9,8,5,5,12,10,8,7,6,11,11,10,8,9,8}; //Find␣
˓→the number in arrey doremi[] according to the numbered musical notation
int meter[] = {1,1,2,2,2,4, 1,1,2,2,2,4, 1,1,2,2,2,2,2, 1,1,2,2,2,4}; // Beats
void setup() {
pinMode(beeppin, OUTPUT); //Set IO5 pin to output mode
}
void loop() {
for( int i = 0 ; i <= 24 ;i++){ //i<=24, because there are only 24 tones in this␣
˓→song
//Use tone()function to generate a waveform in "frequency"
tone(beeppin, doremi[happybirthday[i] - 1]);
delay(meter[i] * 200); //Wait for 1000ms
noTone(beeppin);//Stop singing
}
}
68 Chapter 8. Arduino Tutorial
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