If you find any errors in the book, then please raise them here so that we can keep improving the book between printings and electronic releases. You will also find errata here raised by other readers and my comments on these.
Working with GPIO is very much simpler if you use a paper template to tell you which pin is which. We sell such a template – the “Raspberry Leaf” which you can buy ready made, and drilled here.
If you want to just print your own, then the PDFs are available on my original blog entry describing the Raspberry Leaf.
If you have purchased the Raspberry Pi Starter Kit you will be pleased to know that the components can be used to make recipes 9.1, 9.2, 9.3, 9.9, 9.12, 11.1, 11.2, 12.2.
And if you haven’t got a kit – what are you waiting for!!