This page lists confirmed errors fixed in the 6/08 reprint.

Making Things Talk, 1e
by Tom Igoe

The catalog page for this title is http://www.oreilly.com/catalog/9780596510510/

This page was last updated June 16, 2008.

If you have technical questions or error reports, you can send them to
booktech@oreilly.com.  Please specify the printing date of your copy
or the digital version accessed.

Here's a key to the markup:
	[page-number]: serious technical mistake
	{page-number}: minor technical mistake
	<page-number>: important language/formatting problem
	(page-number): language change or minor formatting problem


Confirmed errors fixed in 6/08:

**** TOC ****

On the second to the last page of the table of contents, Chapter 7 is labeled "The Tools". It should be labeled "Sessionless Networks".
-------------

**** CHAPTER ONE ****

(37) 
Arduino-009 and Wiring-0012 updated to Arduino-011 and Wiring-0016

{42} Code listing, change:

  // after a quarter of a second, turn the LED on:

to:

  // after a half of a second, turn the LED on:

Thanks to Shigeru Kobayashi for catching this.
-------------

**** CHAPTER TWO ****

{51} Synchronous Serial Communication diagram;
On page 51, in the Synchronous Serial Communication diagram, the third pin on the master chip is labeled Master Out Slave Out. It should be labeled Master In Slave Out.
-------------

[69] Flow Control - Processing code; added the following text and code:

Add a loop in setup() that sends a
byte (carriage return) until it gets one
back from Processing. To make this
work, you’ll need to type characters
back to the microcontroller in the serial
monitor, or send them from Processing.
For every character you type, the
microcontroller sends you three sensor
readings.

while (Serial.available() <= 0) {
     Serial.print('\r', BYTE);   // send a return character to say
     delay(300);
 }

[69] Flow Control - Processing code; removed the following text and code:

At the beginning of the draw() method, add this:

 // If you haven't gotten any data from the microcontroller yet, send out
 // the serial port to ask for data. What value you send doesnt matter,
 // since the microcontroller code above isn't doing anything with the
 // byte you send. So send a carriage return for debugging purposes:
 if (madeContact == false) {
   myPort.write('\r');
 }

[69] Flow Control - Processing code; Changed the lines set in blue to:

 // if serialEvent occurs at all, contact with the microcontroller
 // has been made:
 if (madeContact == false) {
     port.clear();          // clear the serial port buffer
     madeContact = true;
     port.write('\r');
   }
-------------

[71]   Added a side note:
SparkFun changed the radio on the BlueSMiRF
after the first printing of this book. The new SMiRFs
use the Roving Networks radios, instead of the BlueRadios
ones. The new BlueSMiRF Silver (SparkFun part number
WRL-08332) is cheaper and uses the Philips BGB203
radio, which has more features than the old units. See www.
makingthingstalk.com for code updates.
-------------


[72] Added a note:

With the BlueSMiRF Silver radios from
Spark Fun, the wiring is the same as it was
with the original BlueSMiRF. Configuration is
virtually the same as well. The only changes
are as follows:

* The device name for the BlueSMiRF v.2
radio is SparkFun-BT.

* These radios don’t use a passcode, so
when you search for the device, you
want to choose not to use a passkey. For
Mac OS X users, this means that after
you’ve selected the device type as “Any
Device”, you’ll get the device discovery
screen. Click the Passkey Options
button and select “Do not use a passkey
with this device”. Then select the
SparkFun-BT device. For Windows users,
the process should be the same.

* Once you’ve paired with the BlueSMiRF
v.2, the instructions in the book will
work just as they did with the original
BlueSMiRF. The BlueSMiRF v.2 will not
send out a CONNECT message when
your computer connects to it, however.

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

**** CHAPTER THREE ****

{94} The Materials section:

Changed: "Between 2 and 4 10-kilohm resistors" to "One 1-kilohm resistor"
Changed: "84N2322" to "58K5001"
-------------

{100}
Added the following note:

You may need a
higher value depending on the
resistance range of your force
sensing resistors and the weight
of your cat. If a 1K resistor
doesn’t give you good values,
try a 4.7K or a 10K resistor.
-------------


{104} Changed the following line:

  if (prevSensorValue >= threshold) {

To:

  if (prevSensorValue > threshold) {

Thanks to Shigeru Kobayashi for catching this.
-------------

**** CHAPTER FOUR ****


<117> In the Figure 4-1 caption, changed:
  WiMicro (left)
To:
  WiMicro (right)
-------------

(125) in the caption above the first photo on the page, changed:
  Micro-to-USV-adaptor
to:
  Micro-to-USB-adaptor
-------------

[132] Figure 4-8:

- On the arrow from the requesting state to the reading state, changed
'C' to '<'.
- In the diamond shape between requesting state and reading state,
changed 'look for data' to 'lookForData()'.
- On the arrow from readData() to interpretResults(), changed 'v' to '>'.
- On the arrow from readData() to reading state, changed '<' to '>'.
- Removed rectangle containing stringToNumber()
-------------

{136} at the fifth line in the caption at the bottom, changed:
  one minute
to:
  two minutes
-------------

{137} Last paragraph, 2nd to last line, changed:
  one minute
to:
  two minutes
-------------

{141} at the first line of the comment in setup() method, removed 'led pins'.
-------------

{145} in the comment at the third line of the code, changed 'message'
to 'client'.

**** CHAPTER FIVE ****

{153} in the schematics in Figure 5-2, changed 'To Micro Reset pin'
to 'To XPort Reset pin'.
-------------

(154) in the upper-left picture, changed 'Switch imput' to 'Switch  input'.
-------------

{159} change
       // if you got anything other than a C, try again:
       deviceConnect()

to

       // if you got anything other than a C,
       // disconnect and let the user re-connect:
       status = disconnected;

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

{162} in the schematics in Figure 5-7, changed 'To Micro Reset pin' to 'To XPort Reset pin'.
-------------

(165) Figure 5-8. Changed method names to camelback notation and added final parentheses to make formatting consistent with other flowcharts:

	setup		-> setup()
	pong setup	-> pongSetup()
	draw		-> draw()
	Pongdraw	-> pongDraw()
	moveBall	-> moveBall()
	showScore	-> showScore()
	listenToClients	-> listenToClients()
	serverEvent	-> serverEvent()
	make new player	-> makeNewPlayer()
	showPaddle	-> showPaddle()
	movePaddle	-> movePaddle()
-------------

{166-167} 
The pong server code had an error. The delayCounter variable should be a long, not a float, and it should be initialized in the setup() not before. For an update, see http://www.makingthingstalk.com/chapter5/35/
-------------

<168> Changed:

It checks the number of players so far
created by counting the number of Players 
in the ArrayList called playerList. If there’s
an even number of Players, the new
Player is added to the top team, and is
positioned below the last top player. If
there’s an odd number of Players, the
new one goes on the bottom team.

To:

A new Player is added to the bottom team if the last
player is on the top, and vice versa.
-------------

(170), at the third line in the caption at the bottom, changed 'ach' to  'each'.
-------------

{172}, at the first line in the top code block, changed 'horizontal' to  'vertical'.
-------------

{174} in the caption at the bottom, 'At right' and 'At left' were swapped.
-------------

**** CHAPTER SIX ****

[207]   Added a side note:

SparkFun changed the BlueSMiRF’s radio after the
first printing of this book. The new SMiRFs use the
Roving Networks radios, instead of the BlueRadios
ones. The new BlueSMiRF Silver (part WRL-08332) is cheaper
and uses the Philips BGB203 radio, which has more features
than the old units. The code in this project is for the older
radios. See www.makingthingstalk.com for code updates.
-------------

**** CHAPTER EIGHT ****

{266} in the Materials list, changed "1 10μF capacitor" to "1 100μF capacitor"
-------------

{266} "Example code (Sharp GP2D12 IR Ranger Reader); Changed:

int range = (6787 / (sensorValue - 3)) - 4;
Serial.println(range, DEC); // print the sensor value
delay(10); // wait 10 milliseconds
// before the next loop

to:

if (sensorValue> 3) {
  int range = (6787 / (sensorValue - 3)) - 4;
  Serial.println(range, DEC); // print the sensor value
  delay(10); // wait 10 milliseconds
             // before the next loop
  }
-------------

(273) Removed "(not used here) from comment for byte 7.
-------------

**** APPENDIX C ****

{382} First paragraph, second column;
The code listing here was not complete for the AIRNow web page scraper. For the full listing, see http://www.makingthingstalk.com/look-ma-no-computer/42/
-------------

{389} change
       // if you got anything other than a C, try again:
       deviceConnect()
to
       // if you got anything other than a C,
       // disconnect and let the user re-connect:
       status = disconnected;
-------------

{389} 
The pong server code had an error. The delayCounter variable should be a long, not a float, and it should be initialized in the setup() not before. For an update, see http://www.makingthingstalk.com/chapter5/35/
-------------

{403} "Example code (Sharp GP2D12 IR Ranger Reader); Changed:

int range = (6787 / (sensorValue - 3)) - 4;
Serial.println(range, DEC); // print the sensor value
delay(10); // wait 10 milliseconds
// before the next loop

to:

if (sensorValue> 3) {
  int range = (6787 / (sensorValue - 3)) - 4;
  Serial.println(range, DEC); // print the sensor value
  delay(10); // wait 10 milliseconds
             // before the next loop
  }
-------------


(404) Removed "(not used here) from comment for byte 7.
-------------

[408] second column;
The program listing for "Color Recognition with a Webcam" does not perform that function. It's a duplication of the previous program in the appendix, "Accelerometer Tilt." The correct code for color recognition could be found on page 298.
-------------