A More Complex Network - Making Things Talk - page 107

Start by combining the
list of global variables
from both sketches. Here's what it
should look like.

Try It

/*
Cat webcam uploader/emailer
Context: Processing

takes a webcam image continually, uploads it, and
mails you when it receives a serial string above a given value
*/

// import the libraries you need: Network, serial, video:
import processing.serial.*;
import processing.video.*;
import processing.net.*;

Serial myPort; // the serial port
float sensorValue = 0; // the value from the sensor
float prevSensorValue = 0; // previous value from the sensor
int threshold = 250; // above this number, the cat is on the mat.

int currentTime = 0; // the current time as a single number
int lastMailTime = 0; // last minute you sent a mail
int mailInterval = 60; // minimum seconds between mails
String mailUrl = "http://www.example.com/cat-script.php";
int lastPictureTime = 0; // last minute you sent a picture
int pictureInterval = 10; // minimum seconds between pictures

Capture myCam; // camera capture library instance
String fileName = "catcam.jpg"; // file name for the picture

// location on your server for the picture script:
String pictureScriptUrl = "/save2web.php";
String boundary = "----H4rkNrF"; // string boundary for the POST request

Client thisClient; // instance of the net library

8

Now combine the setup() methods
like so.

void setup() {
size(400,300);
// list all the available serial ports
println(Serial.list());

// I know that the first port in the serial list on my Mac is always my
// Arduino, so I open Serial.list()[0]. Open whatever port you're using
// (the output of Serial.list() can help; they are listed in order
// starting with the one that corresponds to [0]).
myPort = new Serial(this, Serial.list()[0], 9600);

// read bytes into a buffer until you get a newline (ASCII 10):
myPort.bufferUntil('\n');

»