ex7 play melody working

Author: lewispg228

examples/Example_07_Buzz_Melody/Example_07_Buzz_Melody.ino

@@ -0,0 +1,75 @@
+/******************************************************************************
+  Example_07_Buzz_Melody
+
+  This example shows how to buzz a melody on the Qwiic Buzzer
+
+  By Pete Lewis @ SparkFun Electronics
+  December 2023
+
+  Based on code originally written by Fischer Moseley @ SparkFun Electronics
+  Original Creation Date: June 28, 2019
+
+  This code is Lemonadeware; if you see me (or any other SparkFun employee) at the
+  local, and you've found our code helpful, please buy us a round!
+
+  Hardware Connections:
+  Connect QWIIC cable from Arduino to Qwiic Buzzer
+
+  Distributed as-is; no warranty is given.
+******************************************************************************/
+
+#include <SparkFun_Qwiic_Buzzer_Arduino_Library.h>
+QwiicBuzzer buzzer;
+
+// notes in the melody:
+int melody[] = {
+  NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3, 0, NOTE_B3, NOTE_C4
+};
+
+// note durations: 4 = quarter note, 8 = eighth note, etc.:
+int noteDurations[] = {
+  4, 8, 8, 4, 4, 4, 4, 4
+};
+
+#define BUZZER_VOLUME 4 // loudest!!
+//#define BUZZER_VOLUME 3 // pretty good volume for most things
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Qwiic Buzzer Example_07_Buzz_Melody");
+  Wire.begin(); //Join I2C bus
+
+  //check if buzzer will acknowledge over I2C
+  if (buzzer.begin() == false) {
+    Serial.println("Device did not acknowledge! Freezing.");
+    while (1);
+  }
+  Serial.println("Buzzer acknowledged.");
+
+  Serial.println("Buzzing Melody now...");
+  play_melody();
+}
+
+void loop() {
+  // do nothing here
+  // we just play the melody once during setup above.
+}
+
+void play_melody()
+{
+    // iterate over the notes of the melody:
+  for (int thisNote = 0; thisNote < 8; thisNote++) {
+
+    // 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[thisNote];
+    buzzer.on(melody[thisNote], noteDuration, BUZZER_VOLUME);
+
+    // to distinguish the notes, set a minimum time between them.
+    // the note's duration + 30% seems to work well:
+    int pauseBetweenNotes = noteDuration * 1.30;
+    delay(pauseBetweenNotes);
+    // stop the tone playing:
+    buzzer.off();
+  }
+}

src/SparkFun_Qwiic_Buzzer_Arduino_Library.h

@@ -28,6 +28,7 @@ Distributed as-is; no warranty is given.
 #include <Wire.h>
 #include <Arduino.h>
 #include "registers.h"
+#include "buzzer_pitches.h"
 
 #define SFE_QWIIC_BUZZER_DEFAULT_ADDRESS 0x34 //default I2C address of the buzzer
 #define SFE_QWIIC_BUZZER_DEV_ID 0x5D          //device ID of the Qwiic Buzzer

src/buzzer_pitches.h

@@ -0,0 +1,93 @@
+/*************************************************
+   Public Constants
+ *************************************************/
+
+#define NOTE_B0 31
+#define NOTE_C1 33
+#define NOTE_CS1 35
+#define NOTE_D1 37
+#define NOTE_DS1 39
+#define NOTE_E1 41
+#define NOTE_F1 44
+#define NOTE_FS1 46
+#define NOTE_G1 49
+#define NOTE_GS1 52
+#define NOTE_A1 55
+#define NOTE_AS1 58
+#define NOTE_B1 62
+#define NOTE_C2 65
+#define NOTE_CS2 69
+#define NOTE_D2 73
+#define NOTE_DS2 78
+#define NOTE_E2 82
+#define NOTE_F2 87
+#define NOTE_FS2 93
+#define NOTE_G2 98
+#define NOTE_GS2 104
+#define NOTE_A2 110
+#define NOTE_AS2 117
+#define NOTE_B2 123
+#define NOTE_C3 131
+#define NOTE_CS3 139
+#define NOTE_D3 147
+#define NOTE_DS3 156
+#define NOTE_E3 165
+#define NOTE_F3 175
+#define NOTE_FS3 185
+#define NOTE_G3 196
+#define NOTE_GS3 208
+#define NOTE_A3 220
+#define NOTE_AS3 233
+#define NOTE_B3 247
+#define NOTE_C4 262
+#define NOTE_CS4 277
+#define NOTE_D4 294
+#define NOTE_DS4 311
+#define NOTE_E4 330
+#define NOTE_F4 349
+#define NOTE_FS4 370
+#define NOTE_G4 392
+#define NOTE_GS4 415
+#define NOTE_A4 440
+#define NOTE_AS4 466
+#define NOTE_B4 494
+#define NOTE_C5 523
+#define NOTE_CS5 554
+#define NOTE_D5 587
+#define NOTE_DS5 622
+#define NOTE_E5 659
+#define NOTE_F5 698
+#define NOTE_FS5 740
+#define NOTE_G5 784
+#define NOTE_GS5 831
+#define NOTE_A5 880
+#define NOTE_AS5 932
+#define NOTE_B5 988
+#define NOTE_C6 1047
+#define NOTE_CS6 1109
+#define NOTE_D6 1175
+#define NOTE_DS6 1245
+#define NOTE_E6 1319
+#define NOTE_F6 1397
+#define NOTE_FS6 1480
+#define NOTE_G6 1568
+#define NOTE_GS6 1661
+#define NOTE_A6 1760
+#define NOTE_AS6 1865
+#define NOTE_B6 1976
+#define NOTE_C7 2093
+#define NOTE_CS7 2217
+#define NOTE_D7 2349
+#define NOTE_DS7 2489
+#define NOTE_E7 2637
+#define NOTE_F7 2794
+#define NOTE_FS7 2960
+#define NOTE_G7 3136
+#define NOTE_GS7 3322
+#define NOTE_A7 3520
+#define NOTE_AS7 3729
+#define NOTE_B7 3951
+#define NOTE_C8 4186
+#define NOTE_CS8 4435
+#define NOTE_D8 4699
+#define NOTE_DS8 4978