Purchased this and author's earlier book together. Both had interesting content in part, but there is a tremendous lot or repeats and word-for-word duplication.
Good coverage of SPI interface and interesting projects. Most of the first few chapters is way too elementary for anyone who is going to be programming this type of projects.
Figure 7-3 is an obvious error, as it is a duplicate of 7-2 instead of what it is supposed to be.