# Hot line bling ardino help
**URL:** https://discourse.processing.org/t/hot-line-bling-ardino-help/11556
**Category:** Electronics (Arduino, etc.)
**Created:** [May 24, 2019, 3:48pm UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556 "2019-05-24T15:48:18Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@S.L.C.S](https://discourse.processing.org/u/S.L.C.S)
#### Post date: [May 24, 2019, 3:48pm UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556/1 "2019-05-24T15:48:18Z")
I am supposed to get the below code or create a code that play hot line bling by Drake but i don’t understand how to input the notes for it.
```auto
/ ******************************************************************
* SparkFun Inventor's Kit
* Example sketch 11
*
* BUZZER
*
* This sketch uses the buzzer to play songs.
* The Arduino's tone() command will play notes of a given frequency.
*
* This sketch was written by SparkFun Electronics,
* with lots of help from the Arduino community.
* (This sketch was originally developed by D. Cuartielles for K3)
* This code is completely free for any use.
* Visit http://learn.sparkfun.com/products/2 for SIK information.
* Visit http://www.arduino.cc to learn about the Arduino.
*
* Version 2.0 6/2012 MDG
* Version 2.1 9/2014 BCH
***************************************************************** /
const int buzzerPin = 9; // connect the buzzer to pin 9
const int songLength = 18; // sets the number of notes of the song
// Notes is an array of text characters corresponding to the notes
// in your song. A space represents a rest (no tone)
char notes[songLength] = {
'c', 'd', 'f', 'd', 'a', ' ', 'a', 'g', ' ', 'c', 'd', 'f', 'd', 'g', ' ', 'g', 'f', ' '};
// beats[] is an array of values for each note. A "1" represents a quarter-note,
// "2" a half-note, and "4" a quarter-note.
// Don't forget that the rests (spaces) need a length as well.
int beats[songLength] = {
1, 1, 1, 1, 1, 1, 4, 4, 2, 1, 1, 1, 1, 1, 1, 4, 4, 2};
int tempo = 113; // The tempo is how fast to play the song (beats per second).
void setup()
{
pinMode(buzzerPin, OUTPUT); // sets the buzzer pin as an OUTPUT
}
void loop()
{
int i, duration; //
for (i = 0; i < songLength; i++) // for loop is used to index through the arrays
{
duration = beats[i] * tempo; // length of note/rest in ms
if (notes[i] == ' ') // is this a rest?
delay(duration); // then pause for a moment
else // otherwise, play the note
{
tone(buzzerPin, frequency(notes[i]), duration);
delay(duration); // wait for tone to finish
}
delay(tempo/10); // brief pause between notes
}
while(true){
// We only want to play the song once, so we pause forever
}
// If you'd like your song to play over and over, remove the while(true)
// statement above
}
int frequency(char note)
{
int i;
const int numNotes = 8; // number of notes we're storing
char names[numNotes] = {
'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C' };
int frequencies[numNotes] = {
262, 294, 330, 349, 392, 440, 494, 523 };
// Now we'll search through the letters in the array, and if
// we find it, we'll return the frequency for that note.
for (i = 0; i < numNotes; i++) // Step through the notes
{
if (names[i] == note) // Is this the one?
{
return(frequencies[i]); // Yes! Return the frequency and exit function.
}
}
return(0); // We looked through everything and didn't find it,
// but we still need to return a value, so return 0.
}
```
---
### Author:  [@kll](https://discourse.processing.org/u/kll)
#### Post date: [May 25, 2019, 1:16am UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556/2 "2019-05-25T01:16:13Z")
- please tell us in how far that is a processing question.
- it is an arduino example code:
-
- did you load it up successful to a arduino?
-
- does it play a sound when you correct wired hardware?
-
- did you change the notes in the array “notes” to generate a different song?
---
### Author:  [@S.L.C.S](https://discourse.processing.org/u/S.L.C.S)
#### Post date: [May 25, 2019, 7:29am UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556/3 "2019-05-25T07:29:05Z")
It loaded up successfully and it played a sound when i wired it correctly but i didn’t know how to change the notes is why i asked for help .
---
### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [May 28, 2019, 5:40am UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556/4 "2019-05-28T05:40:14Z")
> [@S.L.C.S](#):
>
> i didn’t know how to change the notes
Edit these two variables:
```auto
// Notes is an array of text characters corresponding to the notes
// in your song. A space represents a rest (no tone)
char notes[songLength] = {
'c', 'd', 'f', 'd', 'a', ' ', 'a', 'g', ' ', 'c', 'd', 'f', 'd', 'g', ' ', 'g', 'f', ' '};
// beats[] is an array of values for each note. A "1" represents a quarter-note,
// "2" a half-note, and "4" a quarter-note.
// Don't forget that the rests (spaces) need a length as well.
int beats[songLength] = {
1, 1, 1, 1, 1, 1, 4, 4, 2, 1, 1, 1, 1, 1, 1, 4, 4, 2};
```
So for example:
then
```auto
char notes[songLength] = {
'c', 'c', 'g', 'g', 'a', 'a', 'a', 'g', ' ', 'f', 'f', 'e', 'e', 'd', 'd', 'c', ' '};
int beats[songLength] = {
1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2};
```
---
### Author:  [@S.L.C.S](https://discourse.processing.org/u/S.L.C.S)
#### Post date: [May 30, 2019, 3:15pm UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556/5 "2019-05-30T15:15:45Z")
where could i get the notes for hotline bling?
---
### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [May 30, 2019, 4:24pm UTC](https://discourse.processing.org/t/hot-line-bling-ardino-help/11556/6 "2019-05-30T16:24:13Z")
I don’t know. Maybe google searching the song name, plus “notes” or “sheet music” or “tabs” or “melody” or “for guitar” or “for piano”, or “how to play”…?