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How to draw a 8x8 array to present the Panasonic infrared array sensor "Grid-eye" in Processing via Arduino?

[0 Replies]
- 23-May-2013 11:35 AM
- Forum: Integration and Hardware
Hello!!!
I tried to draw a 8x8 array to present the temperature situation with an infrared array sensor. First,I used the Arduino to communicate the sensor and got a list of temperature readings which seemed correct. However, I used Processing to draw the 8x8 array, It gave me a list of temperature readings which seemed correct as well,but the 8x8 array flashed somehow. Is there anyone could help me correct my codes?

Thx a lot !!!!!

Arduino

--------------------------------------------------------------------------------------------------

#include <Wire.h>

byte pixelTempL;

byte pixelTempH;

char addr = 0x69;

float celsius;

void setup() {

Wire.begin();

Serial.begin(115200);

}

void loop()

{

//First two data registers for the pixel temp data are 0x80 and 0x81

pixelTempL=0x80;

pixelTempH=0x81;

//Get Temperature Data for each pixel in the 8x8 array. Will loop 64 times.

for(int pixel = 0; pixel <= 63; pixel++)

{

//Get lower level pixel temp byte

Wire.beginTransmission(addr);

Wire.write(pixelTempL);

Wire.endTransmission();

Wire.requestFrom(addr,1);

byte lowerLevel = Wire.read(); //

//Get upper level pixel temp byte

Wire.beginTransmission(addr);

Wire.write(pixelTempH);

Wire.endTransmission();

Wire.requestFrom(addr,1);

byte upperLevel = Wire.read();

//Combine the two bytes together to complete the 12-bit temp reading

int temperature = ((upperLevel << 8) | lowerLevel);

//Temperature data is in two's compliment, do conversion.

if (upperLevel != 0)

{

temperature = -(2048 - temperature);

}

celsius = temperature*0.25;

pixelTempL=pixelTempL+2;

pixelTempH=pixelTempH+2;

Serial.print(celsius,DEC);

Serial.println(",");

}

} //end loop

Processing

--------------------------------------------------------------------------------------------------

import processing.serial.*;

Serial port;

int i,j;

String data = "";

float temp ;

int cols = 8;

int rows = 8;

int lf = 10;

Cell[][] grid;

void setup()

{

size(640,640);

grid = new Cell[cols][rows];

println(Serial.list());

frameRate(10);

port = new Serial(this, Serial.list()[0], 115200);

port.bufferUntil(',');

for (int i = 0; i < cols; i++)

{

for (int j = 0; j < rows; j++)

{

grid[i][j] = new Cell(i*80,j*80,80,80);

}

}

}

void draw(){

background(255);

for (int i = 0; i < cols; i++)

{

for (int j = 0; j < rows; j++)

{

grid[i][j].reads();

grid[i][j].fills();

}

}

}

class Cell {

float x,y;

float w,h;

Cell(float tempX, float tempY, float tempW, float tempH)

{

x = tempX;

y = tempY;

w = tempW;

h = tempH;

}

void reads()

{

temp = float(data);

println(temp);

}

void fills()

{

if(temp > 25.0)

{

rect(x,y,w,h);

fill(255,0,0);

}

else if(temp <= 18.0)

{

rect(x,y,w,h);

fill(0,0,255);

}

else

{

rect(x,y,w,h);

fill(0,250,0);

}

}

}

void serialEvent(Serial port)

{

data = port.readStringUntil(',');

data = data.substring(0, data.length()-1);

}

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