pitches.h:
/*************************************************
* Public Constants
*************************************************/
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
#define NOTE_DS8 4978
#include <Servo.h>
#include "pitches.h"
Servo servo;
int servoPos = 100;
int whichNote = 0;
int notes[10] = {NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4, NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5, NOTE_D5, NOTE_E5};
int durations[10];
void setup() {
servo.attach(9);
pinMode(4, OUTPUT);
Serial.begin(9600);
// set the durations with a random coinflip
for (int i = 0; i < 10; i++) {
int coinFlip = random(2);
if (coinFlip == 0)
durations[i] = 8;
else
durations[i] = 4;
}
}
void loop() {
int val = analogRead(A0);
// the rate is 1 second divided by the duration of the note
int rate = 1000 / durations[whichNote];
// get the current time
unsigned long currentTime = millis();
// trigger a note
if (currentTime % rate == 0 ) {
tone(4, notes[whichNote], random(100, 400));
whichNote = random(10);
delay(1);
}
// do the servo at half speed
if (currentTime % (rate * 2) == 0 ) {
servoPos = 50;
servo.write(servoPos);
}
// else if not triggereing the servo, then every 10 milliseconds move the servo arm back a little bit
// can't do it every frame as that is too fast for the servo
else if (currentTime % 10 == 0) {
servoPos -= 1;
servo.write(servoPos);
}
}
- Timer0 – used for millis(), micros(), delay() and PWM on pins 5 & 6
- Timer1 – used for Servos, the WaveHC library and PWM on pins 9 & 10
- Timer2 – used by Tone and PWM on pins 3 & 11
