Arduino MIDI device issue

Using Arduino Project Guidance
1

I made a simple MIDI controller. I used 5 push buttons. I code it to play a note when pushing the button and stop the note when releasing the button. I selected 5 notes for 5 push button. But when it testing when I m pressing the button 3 notes are playing in the Ableton live. From that 3 notes one of them is the note i added in the code and others are unknown. For all the buttons unknown notes are same

this is my code

int noteON = 144;//144 = 10010000 in binary, note on command
int noteOFF = 128;//128 = 10000000 in binary, note off command

int but1=2;
int but2=3;
int but3=4;
int but4=5;
int but5=6;
int s1;
int s2;
int s3;
int s4;
int s5;
void setup() {
// put your setup code here, to run once:
pinMode(2,INPUT);
pinMode(3,INPUT);
pinMode(4,INPUT);
pinMode(5,INPUT);
pinMode(6,INPUT);
Serial.begin(115200);
s1=0;
s2=0;
s3=0;
s4=0;
s5=0;
}

void loop() {
// put your main code here, to run repeatedly:
int b1=digitalRead(but1);
int b2=digitalRead(but2);
int b3=digitalRead(but3);
int b4=digitalRead(but4);
int b5=digitalRead(but5);
//Serial.println(b1);
if(b1!=s1){
if(b1==1){
MIDImessage(noteON,36,127);
Serial.println("ON");
}
else{
MIDImessage(noteOFF,36,127);
Serial.println("Off");
}

s1=b1;
}

if(b2!=s2){
if(b2==1){
MIDImessage(noteON,37,127);
Serial.println("ON");
}
else{
MIDImessage(noteOFF,37,127);
Serial.println("Off");
}

s2=b2;
}
if(b3!=s3){
if(b3==1){
MIDImessage(noteON,38,127);
Serial.println("ON");
}
else{
MIDImessage(noteOFF,38,127);
Serial.println("Off");
}

s3=b3;
}

if(b4!=s4){
if(b4==1){
MIDImessage(noteON,39,127);
Serial.println("ON");
}
else{
MIDImessage(noteOFF,39,127);
Serial.println("Off");
}

s4=b4;
}
if(b5!=s5){
if(b5==1){
MIDImessage(noteON,40,127);
Serial.println("ON");
}
else{
MIDImessage(noteOFF,40,127);
Serial.println("Off");
}

s5=b5;
}
//delay(100);
}

void MIDImessage(int command, int MIDInote, int MIDIvelocity) {
Serial.write(command);//send note on or note off command
Serial.write(MIDInote);//send pitch data
Serial.write(MIDIvelocity);//send velocity data
//delay(1000);
}

2

Your post was MOVED to its current location as it is more suitable.

Please post you sketch and a schematic following the advice in given in the link below. Use code tags (the </> icon above the compose window) to make it easier to read and copy for examination

3

You are using 'Serial' to send Midi Messages, that means you can not use it for anything else

Serial.println("Off");
4

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