furthest away from the first hole.
then insert and tighten the screw as before.])))
(subsection
- :title [third and fourth hole and screw]))
+ :title [third and fourth hole and screw]
+ (p [even though the arduino is pretty well attached with just 2
+ screws, we will add a third and fourth.
+ this gives practice drilling and tightening screws.
+ it also keeps the arduino fixed even more rigidly.])))
(section
:title [breadboard])
(section