Project that plays the first two stanzas of the National Anthem of the Republic of Turkey note by note with Buzzer. Teaches frequency-note relationship and melody programming.
Video
Circuit Diagram
Source Code
Arduino (C++)
1// ─────────────────────────────────────────
2// BlueGrays · bluegrays.com
3// Turkish National Anthem with Buzzer
4// ─────────────────────────────────────────
5// Press the button and the buzzer plays the first two verses of the
6// Turkish National Anthem note by note. A potentiometer in series with the
7// buzzer sets the volume. Lyrics: Mehmet Akif Ersoy, music: Osman Zeki
8// Ungor.
9//
10// Pins:
11// D7 -> Play button, other leg to 5V
12// D7 -> 10k resistor to GND (pull-down)
13// D8 -> Potentiometer (volume) to Buzzer +
14// Buzzer - to GND
15
16int buttonPin = 7; // Play button
17int buzzer = 8; // Buzzer output pin
18
19// Note frequencies (Hz). A trailing "d" means sharp (ad = A#), 2 and 3 are higher octaves
20int a = 440, ad = 466, b = 494, c = 523, cd = 554, d = 587, dd = 622, e = 659, f = 698;
21int fd = 740, g = 784, gd = 830, a2 = 880, ad2 = 932, b2 = 988, c2 = 1046, cd2 = 1108;
22int d2 = 1174, dd2 = 1244, e2 = 1318, f2 = 1396, fd2 = 1480, g2 = 1568, gd2 = 1660;
23int a3 = 1760;
24
25void setup() {
26 pinMode(buttonPin, INPUT); // Button input (pull-down)
27 pinMode(buzzer, OUTPUT);
28}
29
30void loop() {
31 if (digitalRead(buttonPin)) { // Button pressed?
32 playSong(); // Play the anthem start to end
33 }
34}
35
36// Each tone() starts a note and the delay() after it is the note length (ms). noTone() adds a short
37// rest.
38void playSong() {
39 // Verse 1
40 // Lyrics
41 tone(buzzer, c);
42 delay(800);
43 tone(buzzer, f);
44 delay(800);
45 tone(buzzer, g);
46 delay(800);
47 tone(buzzer, gd);
48 delay(800);
49 tone(buzzer, e);
50 delay(400);
51 tone(buzzer, g);
52 delay(200);
53 tone(buzzer, f);
54 delay(1600);
55 noTone(buzzer);
56 delay(300);
57
58 // Lyrics
59 tone(buzzer, f);
60 delay(800);
61 tone(buzzer, ad2);
62 delay(800);
63 tone(buzzer, c2);
64 delay(800);
65 tone(buzzer, cd2);
66 delay(800);
67 tone(buzzer, a2);
68 delay(400);
69 tone(buzzer, c2);
70 delay(200);
71 tone(buzzer, ad2);
72 delay(1600);
73
74 // Lyrics
75 tone(buzzer, c2);
76 delay(200);
77 tone(buzzer, ad2);
78 delay(200);
79 tone(buzzer, c2);
80 delay(200);
81 tone(buzzer, g);
82 delay(400);
83 noTone(buzzer);
84 delay(100);
85 tone(buzzer, g);
86 delay(400);
87 tone(buzzer, ad);
88 delay(200);
89 tone(buzzer, gd);
90 delay(400);
91 tone(buzzer, e);
92 delay(200);
93 tone(buzzer, f);
94 delay(400);
95 tone(buzzer, g);
96 delay(200);
97 tone(buzzer, gd);
98 delay(400);
99 tone(buzzer, ad);
100 delay(200);
101 tone(buzzer, c2);
102 delay(400);
103 tone(buzzer, cd2);
104 delay(200);
105 tone(buzzer, dd2);
106 delay(400);
107 tone(buzzer, f2);
108 delay(200);
109 tone(buzzer, dd2);
110 delay(400);
111
112 // Lyrics
113 tone(buzzer, dd);
114 delay(200);
115 tone(buzzer, d);
116 delay(200);
117 tone(buzzer, dd);
118 delay(200);
119 tone(buzzer, c2);
120 delay(800);
121 tone(buzzer, ad);
122 delay(800);
123 tone(buzzer, gd);
124 delay(1600);
125
126 // Lyrics
127 tone(buzzer, c);
128 delay(200);
129 tone(buzzer, b);
130 delay(200);
131 tone(buzzer, c);
132 delay(200);
133 tone(buzzer, g);
134 delay(800);
135 tone(buzzer, c);
136 delay(800);
137 tone(buzzer, c2);
138 delay(800);
139 tone(buzzer, ad);
140 delay(200);
141 tone(buzzer, gd);
142 delay(200);
143 tone(buzzer, g);
144 delay(400);
145 tone(buzzer, gd);
146 delay(200);
147 tone(buzzer, f);
148 delay(800);
149
150 // "Dir, Lyrics
151 tone(buzzer, f2);
152 delay(800);
153 tone(buzzer, dd2);
154 delay(200);
155 tone(buzzer, cd2);
156 delay(400);
157 tone(buzzer, c2);
158 delay(200);
159 tone(buzzer, ad);
160 delay(400);
161 tone(buzzer, gd);
162 delay(200);
163 tone(buzzer, g);
164 delay(400);
165 tone(buzzer, f);
166 delay(200);
167 tone(buzzer, c2);
168 delay(400);
169 tone(buzzer, c);
170 delay(800);
171 tone(buzzer, f);
172 delay(1600);
173
174 // Verse 2
175 // Lyrics
176 tone(buzzer, c);
177 delay(800);
178 tone(buzzer, f);
179 delay(800);
180 tone(buzzer, g);
181 delay(800);
182 tone(buzzer, gd);
183 delay(800);
184 tone(buzzer, e);
185 delay(400);
186 tone(buzzer, g);
187 delay(200);
188 tone(buzzer, f);
189 delay(1600);
190 noTone(buzzer);
191 delay(300);
192
193 // Lyrics
194 tone(buzzer, f);
195 delay(800);
196 tone(buzzer, ad2);
197 delay(800);
198 tone(buzzer, c2);
199 delay(800);
200 tone(buzzer, cd2);
201 delay(400);
202 tone(buzzer, ad2);
203 delay(400);
204 tone(buzzer, a2);
205 delay(400);
206 tone(buzzer, c2);
207 delay(400);
208 tone(buzzer, ad2);
209 delay(800);
210
211 // Lyrics
212 tone(buzzer, c2);
213 delay(200);
214 tone(buzzer, ad2);
215 delay(200);
216 tone(buzzer, c2);
217 delay(200);
218 tone(buzzer, g);
219 delay(400);
220 noTone(buzzer);
221 delay(100);
222 tone(buzzer, g);
223 delay(400);
224 tone(buzzer, ad);
225 delay(200);
226 tone(buzzer, gd);
227 delay(400);
228 tone(buzzer, e);
229 delay(200);
230 tone(buzzer, f);
231 delay(400);
232 tone(buzzer, g);
233 delay(200);
234 tone(buzzer, gd);
235 delay(400);
236 tone(buzzer, ad);
237 delay(200);
238 tone(buzzer, c2);
239 delay(400);
240 tone(buzzer, cd2);
241 delay(200);
242 tone(buzzer, dd2);
243 delay(400);
244 tone(buzzer, f2);
245 delay(200);
246 tone(buzzer, dd2);
247 delay(400);
248
249 // Lyrics
250 tone(buzzer, dd);
251 delay(200);
252 tone(buzzer, d);
253 delay(200);
254 tone(buzzer, dd);
255 delay(200);
256 tone(buzzer, c2);
257 delay(800);
258 tone(buzzer, ad);
259 delay(800);
260 tone(buzzer, gd);
261 delay(1600);
262
263 // Lyrics
264 tone(buzzer, c);
265 delay(200);
266 tone(buzzer, b);
267 delay(200);
268 tone(buzzer, c);
269 delay(200);
270 tone(buzzer, g);
271 delay(800);
272 tone(buzzer, c);
273 delay(800);
274 tone(buzzer, c2);
275 delay(800);
276 tone(buzzer, ad);
277 delay(200);
278 tone(buzzer, gd);
279 delay(200);
280 tone(buzzer, g);
281 delay(400);
282 tone(buzzer, gd);
283 delay(200);
284 tone(buzzer, f);
285 delay(800);
286
287 // Lyrics
288 tone(buzzer, f2);
289 delay(800);
290 tone(buzzer, dd2);
291 delay(200);
292 tone(buzzer, cd2);
293 delay(400);
294 tone(buzzer, c2);
295 delay(200);
296 tone(buzzer, ad);
297 delay(400);
298 tone(buzzer, gd);
299 delay(200);
300 tone(buzzer, g);
301 delay(400);
302 tone(buzzer, f);
303 delay(200);
304 tone(buzzer, c2);
305 delay(400);
306 tone(buzzer, c);
307 delay(800);
308 tone(buzzer, f);
309 delay(1600);
310 noTone(buzzer);
311}
312FAQ
How are musical notes converted to frequencies?▾
Each note corresponds to a specific frequency; for example, C in the 4th octave is approximately 262 Hz, and A is 440 Hz. In the code, the notes are stored in one array by frequency, and the durations are stored in a separate array; they are played in sequence using the `tone()` function.
How do I change the tempo of a melody?▾
Note durations are multiplied by a tempo factor. If you decrease the factor, the melody speeds up; if you increase it, the melody slows down. In the project, a potentiometer can be used for these types of adjustments.
The notes are sticking together—how do I separate them?▾
After each note, leave a brief silence lasting about 10–30% of the note's duration (noTone and delay). This ensures that the notes are heard distinctly.
Can I add my own song?▾
Yes. All you need to do is find the notes for the song in a note-frequency table and write them into one array, and write their durations into a second array. You can find ready-made note arrays for many songs on the internet that are compatible with Arduino.