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101 lines
3.7 KiB
C++

/*
*
* Simple sequence - warning, not very musical
*
*/
long randNumber; //variable to store random number
int pwmPin = 11; //define output pin, Meergranen output pin is 11
//define a sequence of beats
int pattern[][8] = { {1,2,0,2,1,1,0,1}, //multidimensional array (nested array) 8 must be there, its the number of elements in the last array
{1,1,1,2,1,1,0,1},
{1,2,0,2,0,0,2,1},
{1,1,2,0,1,1,0,2}
};
void setup() { //default setup loop
Serial.begin(9600);
pinMode(pwmPin,OUTPUT); //set pwmPin to output mode (otherwise the built-in pulldown resistor sets it as input, aka you wont hear anything)
}
void snare(){ //custom function describing a snare
for(int i=0;i<25;i++){
randNumber = random(10, 100); //generate random number between 10 and 100
digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
delayMicroseconds(randNumber/10*(i/4)*(600/10));//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
delayMicroseconds(randNumber/10*(i/4)*(600/10)); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
}
for(int i=0;i<300;i++){
randNumber = random(10, 100); //generate random number between 10 and 100
digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
}
for(int i=0;i<100;i++){
randNumber = random(20, 200); //generate random number between 10 and 100
digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
}
for(int i=0;i<200;i++){
randNumber = random(10, 100); //generate random number between 10 and 100
digitalWrite(pwmPin, LOW); //set output pin to LOW (0v)
delayMicroseconds(randNumber);//wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
digitalWrite(pwmPin, HIGH); //set output pin to HIGH (5v)
delayMicroseconds(randNumber); //wait for randomNumber (10-100 Mircroseconds (0.00001-0.0001 seconds))
}
}
void kick(){ //custom function describing a kick
//ATTACK
for(int i=0;i<7;i++){ // i = DELAY+SUSTAIN+RELEASE of ATTACK
analogWrite(11,0);
delayMicroseconds(1*i*i); // lower the pitch over time
analogWrite(11,255);
delayMicroseconds(1*i*i); // lower the pitch over time
analogWrite(11,0);
}
//SUSTAIN RELEASE
for(int i=0;i<20;i++){ // i = DELAY+SUSTAIN+RELEASE < this should be linked to lfo..
analogWrite(11,0);
delayMicroseconds(analogRead(A1)*i); // lower the pitch over time
analogWrite(11,255);
delayMicroseconds(analogRead(A1)*i); // lower the pitch over time
analogWrite(11,0);
delay(1);
}
}
void loop() { // main loop!
int preset = map(analogRead(A0), 0, 1024, 0,4); //map analog read pot 0 to 0-4 value of our presets
Serial.println(preset);
for (byte i = 0; i < 7; i++) { //for the lenght of the pattern do:
if(pattern[preset][i]==1){
kick();
delay(analogRead(A2)); //rest
}
if(pattern[preset][i]==2){
snare();
delay(analogRead(A2)); //rest
}
if(pattern[preset][i]==0){
delay(analogRead(A2)*2); //rest
}
}
delay(analogRead(A2)); //main tempo
}