Arduino Internals (Technology in Action)

Firstly, I have to say I keep coming back to this book - if only the index was any good. The nugget of information I return to are some of the macros (e.g. bitSet etc) which are useful. The index has no Macro entry; why not? Where is the page with the interrupt vectors listed - believe it or not I only has 2 entries IR proximity sensors and Internet neither of which is 'internal' to the Arduino. So inside the front page of my copy there is a growing list of quick page look-ups.The book is useful for having short program listings so you can quickly establish a base camp (e.g. using Timer1 to blink a LED using the faster data direction register commands) before you then adapt/expand for own use.Because the nitty-grity information is so difficult to find and the index such a waste of space I am tempted to give 3 stars (It's OK) but since I return to it 4 stars is fair. If the index was excellent [full macros listing, pointers to ISR tables, pointers to PORT to Arduino pin tables] then the book would get 5 stars. But there are NO top line entries for PORTS, TIMERS, ADC, or ISRs yet this book is about Internals!Why does Eagle have a headline and sub heading entries?

Good book for taking your knowledge of Arduino programming beyond the beginner stage

Written in a very easily read and understandable style. Contains a wealth of information in one place and will be used for reference on my work bench. An excellent companion to " The Arduino Cookbook" .