+ (subsubsection
+ :title [arduino placement]
+ (p [the arduino should be placed as shown in this picture.]
+ (figure :legend "arduino to deck / place arduino"
+ (image :file "arduino-to-deck/3-place-arduino.png"))
+ [here's a closeup]
+ (figure :legend "arduino to deck / place arduino closeup"
+ (image :file "arduino-to-deck/4-place-arduino-closeup.png"))
+ [the top edge of the arduino should line up with the underside
+ of the holes closest to the edge of the deck.
+ on the arduino, there's a hole on the top left.
+ that hole should be mid-way between two of the holes in the
+ grid of holes on the deck.
+ put the arduino hole between the third and fourth holes
+ from the left side of the deck.]))