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// Yep, this is actually -*- c++ -*-
// Z axis pins for the Motherboard 1.1
// #define STEP_PIN 27
// #define DIR_PIN 28
// #define ENABLE_PIN 29
// #define MIN_PIN 30
// #define MAX_PIN 31
// X axis pins
// #define STEP_PIN 15
// #define DIR_PIN 18
// #define ENABLE_PIN 19
// #define MIN_PIN 20
// #define MAX_PIN 21
// Y axis pins
#define STEP_PIN 23
#define DIR_PIN 22
#define ENABLE_PIN 24
#define MIN_PIN 25
#define MAX_PIN 26
//pin for controlling the PSU.
#define PS_ON_PIN 14
void init_psu()
{
#ifdef PS_ON_PIN
pinMode(PS_ON_PIN, OUTPUT);
turn_psu_on();
#endif
}
void turn_psu_on()
{
#ifdef PS_ON_PIN
digitalWrite(PS_ON_PIN, LOW);
delay(2000); //wait for PSU to actually turn on.
#endif
}
void turn_psu_off()
{
#ifdef PS_ON_PIN
digitalWrite(PS_ON_PIN, HIGH);
#endif
}
void setup()
{
Serial.begin(38400);
Serial.println("You have failed me for the last time.");
pinMode(STEP_PIN, OUTPUT);
pinMode(DIR_PIN, OUTPUT);
pinMode(ENABLE_PIN, OUTPUT);
pinMode(MIN_PIN, INPUT);
pinMode(MAX_PIN, INPUT);
digitalWrite(MIN_PIN, HIGH); //turn on internal pullup
digitalWrite(MAX_PIN, HIGH); //other pullup
digitalWrite(DIR_PIN, HIGH);
digitalWrite(STEP_PIN, LOW);
digitalWrite(ENABLE_PIN, HIGH); //disable
init_psu();
calculate_tones();
}
void loop()
{
play_song();
delay(500);
}
boolean at_switch(byte pin)
{
return !digitalRead(pin);
}
#define TONE_COUNT 27
float frequencies[TONE_COUNT] = {
196.00, //G2 0
207.65, //G#2 1
220.00, //A2 2
233.08, //Bb2 3
246.94, //B2 4
261.63, //C3 5
277.18, //C#3 6
293.66, //D3 7
311.13, //D#3 8
329.63, //E3 9
349.23, //F3 10
369.99, //F#3 11
392.00, //G3 12
415.30, //G#3 13
440.00, //A3 14
466.16, //Bb3 15
493.88, //B3 16
523.25, //C4 17
554.37, //C#4 18
587.33, //D4 19
622.25, //D#4 20
659.26, //E4 21
698.46, //F4 22
739.99, //F#4 23
783.99, //G4 24
830.61, //G#4 25
880.00 //A4 26
};
int tones[TONE_COUNT];
#define NOTE_COUNT 66
int notes[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
10,11,12,13,14,15,16,17,18,19,
20,21,22,23,24,25,26,27,28,29,
30,31,32,33,34,35,36,37,38,39,
};
void calculate_tones()
{
for (byte i=0; i<TONE_COUNT; i++)
tones[i] = (int)(1000000.0/ (2.0 * frequencies[i]));
}
void play_song()
{
digitalWrite(ENABLE_PIN, LOW); //enable
uint32_t f = 1000;
bool dir = true;
for (int i=0;i<100;i++) {
digitalWrite(DIR_PIN, dir);
dir = !dir;
f = f * 1.1;
int delayus = 500000 / 2 / f ;
int count = f;
for (int i=0; i<count; i++) {
digitalWrite(STEP_PIN, HIGH);
delayMicroseconds(delayus);
digitalWrite(STEP_PIN, LOW);
delayMicroseconds(delayus);
}
Serial.println(f);
delay(10);
}
digitalWrite(ENABLE_PIN, HIGH); //disable
}
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