1. Vimeo Links : One, Two
2. Assignments : Write an application that interfaces with an input &/or output device
3. Tryout.
A. Before I start, I searched the web on Processing IDE.
B. The references of the processing helped alot with basic coding.
https://processing.org/reference/
C. I wanted to use the button board that I made before as an input.
D. I surfed the web looking for the tutorials and I found nice work done in 2014.
E. She made a nice work that I could learn from and it shows the dissemnination of the fabacademy well.
http://fabacademy.org/archives/2014/students/pareschi.emma/classes_wk15.html
F. I used Arduino IDE to monitor the serial port.
However, I could not program the board because continuous error saying the board is not connected.
I used the Fab ISP and it worked well. I think the FTDI is broken.
"avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)"
G. Programmed with Fab ISP and serial port is connected with the broken FTDI creating continous signal.
H. However, it stopped signal when the button is pressed.
I. I modified the Processing code in usb serial port and making rectangles related to the serial port.
1. myPort=new Serial(this,"/dev/tty.usbserial-A5025URR",9600);
2. rect(xPos,xPos,xPos,-xPos);
rect(-xPos,-xPos,xPos,-xPos);
J. At the end, here is the result.
4. Codes
A. Arduino
const int buttonPin = 24;
const int ledPin = 17;
int buttonState = 0;
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(buttonPin, INPUT);
}
void loop(){
buttonState = digitalRead(buttonPin);
if (buttonState == HIGH) {
digitalWrite(ledPin, HIGH);
}
else {
digitalWrite(ledPin, LOW);
}
}
B.Processing
import processing.serial.*;
Serial myPort;
int xPos = 1;
void setup () {
size(500,500);
myPort=new Serial(this,"/dev/tty.usbserial-A5025URR",9600);
myPort.bufferUntil('\n');
background(255,0,102);
}
void draw () {
}
void serialEvent (Serial myPort) {
String inString = myPort.readStringUntil('\n');
if (inString != null) {
inString = trim(inString);
float inByte = float(inString);
inByte = map(inByte, 0, 1023, 0, height);
stroke(153,255,51);
rect(xPos,xPos,xPos,-xPos);
rect(-xPos,-xPos,xPos,-xPos);
if (xPos >= width) {
xPos = -xPos;
background(255,0,102);
}
xPos++;
}
}