AngryViking

#include <DateTime.h>
#include <Stepper.h>
 
#define TIME_MSG_LEN  11   // time sync to PC is HEADER and unix time_t as ten ascii digits
#define TIME_HEADER  't'   // Header tag for serial time sync message
#define TZ 8               // How many hours off of GMT are you?
 
Stepper s(200, 4,5,6,7, 1);  // Stepper is on pins 4, 5, 6, 7.  Using the enhanced Stepper library with half-stepping.
 
int p = 0;
 
void setup() {
  Serial.begin(9600);
  Serial.println("Steam Clock 0.8");
 
  DateTime.sync(10000000);  // Needs to come from RTC.
 
  pinMode(2, INPUT);  // home sensor
  pinMode(3, OUTPUT); // home ir led
 
  find_home();
  allminutes();
  allhours();
  bouncehome();
}
 
void find_home() {
  digitalWrite(3, HIGH);  // turn on LED
  digitalWrite(2, HIGH);  // turn on pull-up for sensor
 
  for(int i=0; i < 900; i++) {
    s.step(1);
    delay(25);
    if(digitalRead(2)) {
       Serial.println("Home!!!");
        p = 0;
       break;
     }
   }
 
   digitalWrite(3, LOW);  // turn off LED
   digitalWrite(2, LOW);  // turn off pull-up.
}
 
void allminutes() {
  for(int t=0;t<=60;t++) {
    minute(t);
    delay(500);
    if(t % 10 == 0) {
      wiggle(20);
      delay(500);
    } 
  }
}
 
void allhours() {
  for(int t=0;t<=24;t++) {
     hour(t);
     delay(500);
  } 
}
 
void bouncehome() {
   minute(0);
   wiggle(100); 
}
 
void move(int to,int speed) {
  s.setSpeed(speed);
  if(to != p) {
    int steps = to - p;
    s.step(steps);
    p += steps;
  }
}
 
void wiggle(int i) {
  s.setSpeed(200);
  for(; i > 1; i -= 5){
     s.step(i);
     s.step(-i);
     s.step(-i);
     s.step(i);
  }  
}
 
void hour(int h) {
//  move((int)(h * 2.125), 200);  // this shoulnd't be a float...
  move((int)(h * 2), 200);  // oh, 2 seems to work better anyway. yay!
}
 
void minute(int m) {
  move(400 - (m * 4), 200);
}
 
void getPCtime() {
  // if time available from serial port, sync the DateTime library
  while(Serial.available() >=  TIME_MSG_LEN ){  // time message
    if( Serial.read() == TIME_HEADER ) {        
      time_t pctime = 0;
      for(int i=0; i < TIME_MSG_LEN -1; i++){   
        char c= Serial.read();          
        if( c >= '0' && c <= '9')   
          pctime = (10 * pctime) + (c - '0') ; // convert digits to a number            
      }   
      DateTime.sync(pctime - (TZ * 60 * 60));   // Sync DateTime clock to the time received on the serial port
    }  
  }
}
 
void debugOutput() {
  Serial.print('t');
  Serial.println(DateTime.now()); 
 
  Serial.print(DateTime.Hour, DEC);
  Serial.print(':');
  Serial.print(DateTime.Minute, DEC);
  Serial.print(':');
  Serial.println(DateTime.Second, DEC);
 
  Serial.print(DateTime.Day, DEC);
  Serial.print('/');
  Serial.print(DateTime.Month, DEC);
  Serial.print('/');
  Serial.println(DateTime.Year, DEC);
}
 
void loop() {
  getPCtime();
  debugOutput();
 
  DateTime.available();
  hour(DateTime.Hour);
  wiggle(20);
  delay(2000);
 
  DateTime.available();
  minute(DateTime.Minute);
  wiggle(20);
  delay(2000);
 
  DateTime.available();
  minute(DateTime.Second);
 
  DateTime.available();
  if(DateTime.Second < 50) {
     move(400 - ((DateTime.Second + 10) * 4), 1);
  } else {
     move(400 - ((60) * 4), 1);
  }
}