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ArduinoコントロールとProcessing Interfaceを統合しようとしています。 私のArduinoコードには、ピンa1、a0、d0（すべてdigitalRead）に3つのボタンが付いています。Arduinoと処理の統合 - ボタンカウンター
int x;// assigned to A0 input
int y;// assigned to A1 input
int z; //assigned to D0 input
int votes[3]={0,0,0};
void setup() {
// initialize the serial communication
Serial.begin(9600);
while(!Serial);
}
void loop() {
// first we need to read the values from the BUTTONS
x = digitalRead(A0);
y = digitalRead(A1);
z = digitalRead(0);
if(digitalRead(A0) == HIGH)
{
Serial.print("cat1 ");
Serial.print(votes[0]=votes[0]+1);
Serial.print("\n");
}
else if(digitalRead(A1) == HIGH)
{
Serial.print("cat2 ");
Serial.print(votes[1]=votes[1]+1);
Serial.print("\n");
}
else if(digitalRead(0) == HIGH)
{
Serial.print("cat3 ");
Serial.print(votes[2]=votes[2]+1);
Serial.print("\n");
}
delay(200);
}
私は棒グラフとして処理して、すべてのボタンが押された時間と表示をインクリメントするカウンタをしたいと思います。ボタンを押すたびに、棒グラフがいくらか上がります。この場合、3つの線（3つのボタンに関連付けられています）の1つを押すと描画します。
処理コードは以下の通りです：
import processing.serial.*;
// Serial Port variables
Serial myPort;
String buff = "";
String buff1 = "";
String buff2 = "";
int index = 0;
int NEWLINE = 10;
// Store the last 256 values from the sensors so we can draw them.
int[] valuesx = new int[256];
int[] valuesy = new int[256];
int[] valuesz = new int[256];
void setup()
{
// set size of the window
size(512, 512);
// turn on anti-aliasing, this makes things look smoother
smooth();
println(Serial.list()); // use this to determine which serial port is your Arduino
myPort = new Serial(this, Serial.list()[0], 9600);
myPort.bufferUntil('\n');
}
// draw() happens every frame of the sketch. This is where all the calculations are made.
// When draw() is finished executing, it executes again, over and over.
void draw() {
// set the background to purple
background(87, 36, 124);
// set stroke weight(thickness of the line) to 5 pixels
strokeWeight(5);
for (int i = 0; i < 255; i++) {
stroke(247, i);
// draw the line (x1, y1, x2, y2)
line(1, valuesx[i], 1, valuesx[i + 1]);
line(5, valuesy[i], 5, valuesy[i + 1]);
line(10, valuesz[i], 10, valuesz[i + 1]);
}
// Check the Serial port for incoming data
while (myPort.available() > 0) {
// if there is data waiting...
// execute serialEvent() function. Look below to see how SerialEvent works.
serialEvent(myPort.read());
}
}
// serialEvent controls how incoming serial data from the Arduino module is handled
void serialEvent(int serial)
{
if (serial != NEWLINE) {
// Store all the characters on the line.
buff += char(serial);
}
else {
// The end of each line is marked by two characters, a carriage
// return and a newline. We're here because we've gotten a newline,
// but we still need to strip off the carriage return.
buff = buff.substring(0, buff.length()-1);
index = buff.indexOf(",");
buff1 = buff.substring(0, index);
buff2 = buff.substring(index+1, buff.length());
// Parse the String into an integer. We divide by 4 because
// analog inputs go from 0 to 1023 while colors in Processing
// only go from 0 to 255.
int x = Integer.parseInt(buff1)/2;
int y = Integer.parseInt(buff2)/2;
// Clear the value of "buff"
buff = "";
// Shift over the existing values to make room for the new one.
for (int i = 0; i < 255; i++)
{
valuesx[i] = valuesx[i + 1];
valuesy[i] = valuesy[i + 1];
}
// Add the received value to the array.
valuesx[255] = x;
valuesy[255] = y;
}
}
残念ながら、ここで私はボタンを押したときに私が手にエラーがあります。 