(toc)
(chapter
:title [mechanical]
+ :number "0"
(p [let's build your robot!])
(section
:title [arduino to deck]
+ :number "0"
(p [let's attach the arduino to the deck.])
(subsection
:title [required materials]
:title [wiring and software]
(section
:title [serial]
+ :number "0"
(subsection
:title [software on computer]
(subsubsection