Most helpful critical review
199 of 216 people found the following review helpful
on November 4, 2010
I do not consider myself evil, nor do I consider myself a genius, maybe that is why I'm having so many issues with this book. This book contains great project ideas. That is why I bought it. However, as I am new to electronics and the arduino platform, some of the mistakes in the book can cause great frustration. In the few projects I have tried, the schematic diagram, breadboard layout, and photograph of complete breadboard do not match. The first example is Project 4. The program from project 3 says use digital pin 12. The schematic diagram Fig. 3-5 says digital pin 11, and the breadboard layout fig 3-6 and photograph of complete breadboard fig 3-8 shows it connected to digital pin 12. This one is easy to figure out, however, breadboard layout fig 3-6 also shows Luxeon LED connecting to the wrong pin on the T1-BD139. It is hard to see, but it is showing it connected to the same pin as the 270 Ohm resistor. You need to look at the photograph of the complete breadboard fig 3-8 to see the correct way to wire the circuit. This is also incorrect on Fig 4-6 Breadboard layout for project 6.
Second example: the Components and equipment for project 7: Shows "R4-5 4 Ohm 2W resistor" This doesn't match the Schematic Fig 4-9, where you need two 4 Ohm 1 Watt (not 2 Watt) resistors.
I then jumped ahead to Project 28, which I'm still trying to figure out how to configure correctly. The Schematic diagram Fig. 9-8 has the IC1 component connected to Digital pin 9. The Breadboard layout has it connected to digital pin 3. The photograph fig 9-7 has it connected to digital pin 9. The text says it is connected to digital pin 9, so I assume three to one this is correct. The 100 Ohm resistor in the picture fig 9-7 is connected to ground. In the schematic it is connected to the arduino on digital pin 3, on the breadboard layout fig 9-9 it is again connected to ground. The picture on the arduinoevilgenuis web site is currently showing it connected to ground [...]. The web site referenced in the book is showing it connected to digital pin 3. [...]
I understand everyone makes mistakes. I'm looking forward to a web page that will correct the mistakes in the book.