Week 14 昱霖的筆記

使用範例與旋鈕座結合

旋轉到大值LED會閃爍

int sensorPin = A0;    // select the input pin for the potentiometer
int ledPin = 13;      // select the pin for the LED
int sensorValue = 0;  // variable to store the value coming from the sensor

void setup() {
  // declare the ledPin as an OUTPUT:
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // read the value from the sensor:
  sensorValue = analogRead(sensorPin);
  // turn the ledPin on
  digitalWrite(ledPin, HIGH);
  // stop the program for <sensorValue> milliseconds:
  delay(sensorValue);
  // turn the ledPin off:
  digitalWrite(ledPin, LOW);
  // stop the program for for <sensorValue> milliseconds:
  delay(sensorValue);
}

變成跑值

int sensorPin = A0;    // select the input pin for the potentiometer
int ledPin = 13;      // select the pin for the LED
int sensorValue = 0;  // variable to store the value coming from the sensor

void setup() {
  Serial.begin(9600);
  pinMode(13, OUTPUT);
  pinMode(8, OUTPUT);
}

void loop() {
  int value= analogRead(A0);
  tone(8,value);
  int c=(value/10+'0');
  Serial.write(c);
  delay(100);
}

加上Processing

使球可以隨著旋鈕左右移動

import processing.serial.*;

Serial myPort;

void setup(){

  size (1024,600);

  myPort=new Serial(this,"COM7",9600);

}

float handX=0;

void draw(){

  background(255);

  if(myPort.available()>0){

    int c =myPort.read();

    handX=(c-'0')*10;

  }

  ellipse(handX,500,100,100);

}