// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2020-06-06 오전 9:54:28
// by Ok-Hyun Park
//
#define BUTTON  2
#define BUTTON1 3
#define LED     6
#define Echo    7
#define Trig    8
#define GREEN   9
#define BLUE    10
#define RED     11
#define speaker 12
//
char notes[]="GGAGcB GGAGdc GGxecBA yyecdc";
int  beats[]={2,2,8,8,8,16,1,2,2,8,8,8,16,1,2,2,8,8,8,8,16,1,2,2,8,8,8,16};
int  length=28,tempo=500;
//
void playTone(int tone,int duration){
  for(long i=0; i<duration*1000L; i+=tone*2){
    digitalWrite(speaker,1); delayMicroseconds(tone);
    digitalWrite(speaker,0); delayMicroseconds(tone);
    if(digitalRead(3))return;
  }
}
//
void playNote(char note,int duration){
  char names[]={'C','D','E','F','G','A','B','c','d','e','f','g','a','b','x','y'};
  int tones[] ={1915,1700,1519,1432,1275,1136,1014,956,834,765,593,468,346,224,655,715};
  int SPEE=5;
  for(int i=0; i<17; i++){
    if(names[i]==note){ int newduration=duration/SPEE; playTone(tones[i],newduration); }
    if(digitalRead(3))return;
  }
} // 소리
//
void setup(){
  pinMode(2,INPUT);    pinMode(3,INPUT);
  pinMode(4,OUTPUT);   pinMode(5,OUTPUT); pinMode(6,OUTPUT);
  pinMode(Echo,INPUT); pinMode(Trig,OUTPUT);
  pinMode(speaker,OUTPUT);
}
//
void loop(){
  int a=0,R,speed,int J,light;
  analogWrite(5,0); analogWrite(4,0);
  int count=0; if(digitalRead(2))count=1;
  while(count){
    delay(100);
    digitalWrite(Trig,1); delayMicroseconds(10); digitalWrite(Trig,0); //트리거
    unsigned long duration1=pulseIn(Echo,1);
    float distance=((float)(340*duration1)/10000)/2;
    //
    analogWrite(RED,0); analogWrite(GREEN,0); analogWrite(BLUE,0);
    if     (distance<100)analogWrite(RED  ,255);
    else if(distance<200)analogWrite(GREEN,255);
    else if(distance<300)analogWrite(BLUE ,255);
    //
    J=analogRead(A1); light=map(J,0,1023,0,100);
    if(light<25){ digitalWrite(6,1); } else{ digitalWrite(6,0); }
    //
    R=analogRead(A0); speed=map(R,0,1023,0,255);
    analogWrite(5,speed); analogWrite(4,10);
    //
    if(digitalRead(BUTTON)){ // 소리
      for(int i=0; i<length; i++){
        if(notes[i]==' ')delay(beats[10*i]*tempo); // rest
        else             playNote(notes[i],beats[i]/5*tempo);
        if(digitalRead(3))return;
      }
    }
    //
    if(digitalRead(3))return;
  }
}