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/*
* SQRLS Audio Test
*/
int speakerOnePin = 5;
int speakerTwoPin = 6;
int motionSensorPin = 7;
void setup() {
pinMode(motionSensorPin, INPUT);
pinMode(speakerOnePin, OUTPUT);
pinMode(speakerTwoPin, OUTPUT);
// Set pins 5&6 to a 62500Hz PWM clock
TCCR0B = TCCR0B & 0b11111000 | 0x01;
}
void loop() {
bark(random(50,100)^2/100);
delay(random(50000,200000)^2/100000);
}
void bark(int ll) {
/*
for(float j=300; j>0; j-=20) {
//if(random(5) == 1) {
// delayMicroseconds(100);
//}
triangleWave(j*j/300);
}
*/
for(int j=500; j>200; j-=3000/ll) {
sawWave(j+random(50));
}
}
void triangleWave(int len) {
for(int i = 0; i < len; i++) {
analogWrite(speakerOnePin, i*255/len);
}
for(int i = 0; i < len; i++) {
analogWrite(speakerOnePin, 255 - i*255/len);
}
}
void sawWave(int len) {
for(int i = 0; i < len; i++) {
analogWrite(speakerOnePin, i);
}
}
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