Carousel~電阻

 

void setup() {

  for(int i=2;i<=13;i++)

  pinMode(i,OUTPUT);

  Serial.begin(9600);

  /*pinMode(13,OUTPUT);

  pinMode(8,OUTPUT);*/

}

void loop() {

  int now = analogRead(A0);

  //int level = now/(1024/13);

  int level = now/4;

  for(int i=2;i<=13;i++){

    if(i<level)digitalWrite(i,HIGH);

    else digitalWrite(i,LOW);

  }

  Serial.write(('A'+level));

  delay(20);

  /*tone(8,now);

  digitalWrite(13,HIGH);

  delay(now);//ms

  

  digitalWrite(13,LOW);

  delay(now);*/

}

P語言

import processing.serial.*;

Serial myPort;

void setup(){

  size(700,100);

  myPort = new Serial(this,"COM6",9600);

}

int level=0;

void draw(){

  background(255);

  fill(255,0,0);

  rect(0,0,level*50,100);

  if(myPort.available()>0){

    int now = myPort.read();

    level=now;

  }

}