Making Things Talk

IDENTIFICATION 321

Continued from opposite page.

if (tagIndex < tagLength) {

tagID[tagIndex] = thisChar;

// increment the tag byte counter

tagIndex++;

}

break;

}

}

/*

X10 test

language: Wiring/Arduino

*/

// include the X10 library files:

#include <x10.h>

#include <x10constants.h>

#define zcPin 9 // the zero crossing detect pin

#define dataPin 8 // the X10 data out pin

#define repeatTimes 1 // how many times to repeat each X10 message

// in an electrically noisy environment, you

// can set this higher.

// set up a new x10 library instance:

x10 myHouse = x10(zcPin, dataPin);

void setup() {

// turn off all lights:

myHouse.write(A, ALL_UNITS_OFF,repeatTimes);

}

void loop() {

// turn on first module:

myHouse.write(A, UNIT_1,repeatTimes);

myHouse.write(A, ON,repeatTimes);

myHouse.write(A, UNIT_2,repeatTimes);

myHouse.write(A, OFF,repeatTimes);

delay(500);

// turn on second module:

myHouse.write(A, UNIT_1,repeatTimes);

myHouse.write(A, OFF,repeatTimes);

myHouse.write(A, UNIT_2,repeatTimes);

myHouse.write(A, ON,repeatTimes);

delay(500);

}

When you know that works, run

this sketch to test the X10:

8

Making_Things_Talk.indb 321 11/13/09 4:57 PM

322 MAKING THINGS TALK

It’s unlikely that ...