:title [breadboard power rail]
(p [power rail can provide power to more than one device.])))
(section
- :title [left motor])
+ :title [left motor]
+ (subsection
+ :title [arduino digital output])
+ (subsection
+ :title [quad half h bridge, aka motor controller])
+ (subsection
+ :title [motor battery]))
(section
:title [both motors])
(section