basic idea of a controllable sequence

basics/simple-sequence/simple-sequence.ino

@@ -0,0 +1,100 @@
+/*
+ * 
+ * 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
+
+}