 | Page 5 - Chapter 1 (Welcome to the World of Simple
Robotics), (Nov18 2002). Captions for Figure 1-2 and Figure 1-3
are reversed.
|
| Page 33 - Chapter 3 (Identifying Electrical Bits), (Dec 2
2002). A picofarad is a million times smaller than a microfarad,
not a thousand times. (Thanks to reader Mike Richberg for this
one)
|
| Page 95 - Chapter 7 (project 1: Symet), (Oct 15 2002). Figure
7-1: Flashing LED solarengine schematic. Flashing LED
didn't show up in image.
|
| Page 95 - Chapter 7 (project 1: Symet), (Oct 15 2002).
Figure
7-2: Symet motion explained. Symet motion direction
arrows went the wrong way.
|
| Page 97 - Chapter 7 (project 1: Symet), (Oct 15 2002). Figure
7-4: Symet breadboarded. This image is simply too small in
the book to be of any use to a roboticist who's trying to build
it. Here's a larger copy.
|
| Page 101 - Chapter 7 (project 1: Symet), (Dec 2 2002). Figure
7-8: Adding the resistor to the mix, and trimming the
leads. The vector (line-art) graphic is wrong, wrong, wrong!
The transistors are incorrectly connected. The photograph is
correct.
|
| Page 102 - Chapter 7 (project 1: Symet), (Dec 2 2002). Figure
7-10: Finishing the core circuit with the flashing LED.
The vector (line-art) graphic again is wrong, wrong,
wrong! The transistors are incorrectly connected. The photograph
is correct.
|
| Page 103 - Chapter 7 (project 1: Symet), (Dec 2 2002). Figure
7-11: Soldering capacitors to the motor body (no replacement
graphic). The
"-" (minus sign) is missing from the figure sentence
"Solder the capacitor "-" leads to the top of the
motor. Thanks to Jérôme Demers for spotting this error.
|
| Page 107 - Chapter 7 (project 1: Symet), (Nov18 2002). Figure
7-16: Soldering the motor wire connections. The
right-side image shows a wire going to the motor body (wrong)
when it should be going to capacitor ring. Thanks to bugfinder
Alistair
|
| Page 113 - Chapter 8 (project 2: Solaroller), (Oct 15 2002). Figure
8-2: The Millerengine schematic. Funky fuzziness abound!
|
| Page 160 - Chapter 9 (project 3: The Herbie Photovore), (Dec 9
2002), Figure 9-30: Wiring up the eye sensors (no
replacement graphic). The top middle text should read
"Light sensor cathode connects to "+" on LM386
pin 6..." (not pin 5). Thanks to Parth Shah for
finding this buglet.
|
| Page 175 - Chapter 10 (project 4: Headbot), (Oct 15 2002). Figure
10-7: The Bicore headbot schematic. Missing / strange
LED graphics
|
| Page 184 - Chapter 10 (project 4: Headbot), (Dec 2 2002). Figure
10-18: Start of the 74AC240 pin soldering (no replacement
graphic). The figure
text is incorrect. "Solder pins 17 and 18 together"
should be "Solder pins 3 and 4 together." And ignore
the spelling mistake "clippins," ok? Alistair's keen
eyes found these bugs.
|
| Page 185 - Chapter 10 (project 4: Headbot), (Dec 2 2002). Figure
10-20: Connecting the folded-in pins. The bottom
right pin (right at the bottom of the picture) shouldn't
have been soldered to the rest of the pins folded inwards. This
pin (pin 10) should be left solo. The text also repeats the
error by stating 6, 8, and 10 should be connected, when pin 10 should
not be connected. Alistair strikes again (thx!).
|
| Page 201 - Chapter 11 (project 5: Pendulum), (Oct 15 2002). Figure
11-2: Magbot pendulum schematic. More missing LEDs. Darn
things...
|
| Page 230 - Chapter 11 (project 5: Pendulum), (Oct 15 2002). Figure
11-36: Replacing the solar cell with a batter. Yet
again, dang LEDs causing havoc.
|
| Page 246 - Chapter 12 (project 6: Minisumo), (Nov18 2002).
"10x10 cm (2.54" x 2.54")" is incorrect.
10x10cm is actually 3.94" x 3.94". Thanks to Eric
Stewart and Jerome Demers for this one.
|
| Page 278 - Chapter 13 (project 7: Walker), (Oct 15
2002). Figure
13-1: Simple BEAM two-motor walker schematic. Wire
overlap is unclear on IMx.
|
| Page 296 - Chapter 13 (project 7: Walker), (Dec 5 2002).
Figure 13-16: Bicore "deadbug" leg forming and
soldering (no replacement graphic). The bottom right text
string should read "Group solder pins 3, 4, 6, 8 and 11,
13, 15, 18 together." It was 2, 4, 6 ... (Thanks to
Dan Chiodo)
|
| Page 321 - Chapter 13 (project 7: Walker), (Nov18 2002). Figure
13-50. It's a repeat of the graphic on page 294. Bizarre.
New graphic to eventually show up.
|
| Page 323 - Chapter 13 (project 7: Walker), (Oct 15 2002). Figure
13-52: Final challenge: Adding a turn to the reverser circuitry.
The "additional resistor" value and capacitor values
didn't print properly.
|
| Page 323 - Chapter 13 (project 7: Walker), (Nov18 2002). Figure
13-52: Final challenge: Adding a turn to the reverser circuitry.
Arrgh! Would you believe that the previous correction
still wasn't 100% right? Thanks again to Jerome Demers for this
one.
|
| Page 328 - Chapter 13 (project 7: Walker), (Dec 5 2002). Figure
14-2: A minimal high-gain one-way motor driver, negative signal
trigger (no replacement graphic). The top right transistor
labeled "2N3906" has the arrow pointing the wrong way,
as it should be inwards. (Thanks to Dan Chiodo). Interesting
side-note: Put a 2N3904 in this location instead with
emitter/collector reversed, and you have an
"active-high" driver.
|
| Page 340 - Appendix 'A' (Resources for More BEAM Information),
(March 10, 2003). Not too many people have noticed (well, maybe
2?) the incorrect link in the first paragraph. It's actually this
link.
|
| Page 357 - Appendix 'C' (Technical Schematics), (Jan 19 2003).
Q1 defined incorrectly. It is a NPN 2N3904 / PN2222 NPN
type transistor - not a PNP! (Credit to Asa Boehme) |
