2 ;; copyright info at bottom
9 :title [arduino to deck]
10 (p [let's attach the arduino to the deck.])
12 :title [required materials]
13 (p [you will need the things in this picture.
14 ,(figure :legend "arduino to deck / required materials"
15 (image :file "arduino-to-deck/0-required-materials.png"))
17 (item [medical kit with bandages])
18 (item [safety goggles])
19 (item [drill bit \(we will determine size in a moment\)])
24 (item [#6-32x3/8\", four of them]))]))
28 :title [choosing drill bit]
29 (p [choosing the right drill bit depends on what job you are doing.
30 right now, we are making holes for screws to hold the
32 this means the hole needs to be big enough for the
33 screw body to fit through.
34 we want the screw to stay put once it's in place.
35 we also want the drill bit to be smaller than the
36 diameter of the thread.
37 the screw was chosen so that the hole on the arduino
38 was bigger than the body and smaller than the thread.
39 we will choose the biggest drill bit that fits through
40 the hole on the arduino.])
41 (p [here's a cross section of a screw in the deck]
42 (figure :legend "screw cross section"
44 "arduino-to-deck/screw-cross-section.png"))))
46 :title [inserting drill bit]
47 (p (figure :legend "arduino to deck / insert bit"
48 (image :file "arduino-to-deck/1-insert-bit.png"))
49 [insert the drill bit into the teeth of the drill.
50 insert it far enough that the teeth will clamp on the
51 smooth part of the bit when they are tightened.])
53 :legend "arduino to deck / twist tighten drill teeth"
54 (image :file "arduino-to-deck/2-twist-tighten-drill-teeth.png"))
55 [while holding the drill bit, twist end of the drill to tighten
57 make sure that the teeth end up gripping the flat part of
60 :title [holding drill]
61 (p [hold the drill with one hand on the handle and trigger.
62 put the other hand on the orange nozzle, before the
63 black spinning part.]))
65 :title [arduino placement]
66 (p [the arduino should be placed as shown in this picture.]
67 (figure :legend "arduino to deck / place arduino"
68 (image :file "arduino-to-deck/3-place-arduino.png")))
70 (figure :legend "arduino to deck / place arduino closeup"
72 "arduino-to-deck/4-place-arduino-closeup.png"))
73 [the picture above shows where to place the arduino on the deck.
74 the arduino should line up with the holes on the deck.
75 this alignment line is highlighted in pink.
76 on the arduino, there's a hole on the top left, between the
77 orange reset button and black headers.
78 the green circle shows where the hole is.
79 the blue box encloses the arduino hole and two deck holes.
80 place the arduino hole mid-way between the two
87 :title [fastening arduino to deck using #6-32x3/8\" screw]
88 (p [the "#6" part of "#6-32x3/8\"" is how big around the bolt is.
89 it is related to wire gauge.
90 bigger numbers mean larger screw.
91 smaller numbers means smaller screws.]
92 (figure :legend "arduino to deck / #6-32 screw"
94 "arduino-to-deck/6-32-screw.png")))
98 [in the motor assembly, there are #4-40x1.25\" screws.
99 are those fatter, thinner, or the same thickness as the
100 #6-32x3/8\" screws?]))])
101 (p [the "32" part is a measurement of how close the threads are to
103 this is related to the angle of the thread, which is also
105 it is a count of how many times the thread wraps around one
106 inch of the screw body.])
107 (p [the head is the flat part where some tool, like the alan
108 wrench, can exert force to spin the screw.])
111 (item [how many times will the thread wrap around one inch of
113 (item [what about 2 inches?
114 how many times will the thread wrap around two
115 inches of the screw body?]))]))
117 :title [fasten the arduino board to the deck]
118 (p [push the 6-32 screw into the deck from the underside and at the
119 same time, spin the 6-32 screw clockwise while looking
121 twist until the bottom of the screw is
122 about to stick out on the top side of the deck.])
123 (p [hold the arduino board flat to the deck and line up the arduino
124 hole so the screw can come up through it.
125 continue tightening the screw into the deck, spinning the same
127 tighten until the screw head touches the deck.
128 do not continue tightening after that.])
129 (p [the arduino should still be flat against the deck still, just
130 as it was before tightening the screw.]))
133 (p [does the arduino stay with the deck when the deck moves?
134 can the arduino board still rotate a few degrees?
135 warning, if you rotate the arduino board too much, you
136 will unscrew it from the deck and you'll have to screw it
138 rotating a few degrees should be ok.]))
140 :title [arduino board move relative to deck]
141 (p [without any screws, the arduino board can move independently of
143 (p [with the first screw, the arduino can rotate around one point
146 :title [second hole and screw])
148 :title [third and fourth hole and screw]))
152 :title [battery packs]
156 :title [deck attachment]))
164 :title [deck attachment]))
174 :title [deck placement]))
178 :title [deck placement])))
180 :title [wiring and software]
184 :title [software on computer]
190 :title [attach arduino and computer via cable])
192 :title [debugging common connection problems])
194 :title [arduino reset button]))
198 :title [breadboard connectivity])
202 :title [arduino headers])
204 :title [sound cm per microsecond at sea level]))
208 :title [breadboard power rail]
209 (p [power rail can provide power to more than one device.])))
213 :title [arduino digital output])
215 :title [quad half h bridge, aka motor controller])
217 :title [motor battery]))
221 :title [analogWrite]))
225 :title [arduino battery])
227 :title [off and on functions]))
231 :title [same wiring as untethered])
237 :title [determining speed]))
239 :title [stay on table]
245 :title [turn around]))))
247 ;; Copyright 2016 daniel watson
249 ;; This file is part of challenge-bot.
251 ;; challenge-bot is free software: you can redistribute it and/or modify
252 ;; it under the terms of the GNU Affero General Public License as
253 ;; published by the Free Software Foundation, either version 3 of the
254 ;; License, or (at your option) any later version.
256 ;; challenge-bot is distributed in the hope that it will be useful,
257 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
258 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
259 ;; GNU Affero General Public License for more details.
261 ;; You should have received a copy of the GNU Affero General Public
262 ;; License along with challenge-bot. If not, see
263 ;; <http://www.gnu.org/licenses/>.
projects / challenge-bot / blob