:title [second hole and screw])
(subsection
:title [third and fourth hole and screw]))
+ (section
+ :title [breadboard])
(section
:title [battery packs]
(subsection
(subsection
:title [deck placement]))
(section
- :title [sonars]))
+ :title [sonars]
+ (subsection
+ :title [deck placement])))
(chapter
:title [wiring and software]
(section
- :title [serial])
+ :title [serial]
+ (subsection
+ :title [software on computer]
+ (subsection
+ :title [arduino])
+ (subsection
+ :title [fritzing]))
+ (subsection
+ :title [attach arduino and computer via cable])
+ (subsection
+ :title [debugging common connection problems])
+ (subsection
+ :title [arduino reset button]))
(section
- :title [left sonar])
+ :title [left sonar]
+ (subsection
+ :title [breadboard connectivity])
+ (subsection
+ :title [cable])
+ (subsection
+ :title [arduino headers]))
(section
:title [both sonars])
(section