X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=curriculum%2Fchallenge-bot.scm;h=933c0fa080c8e7150f82b11019ddb8be349c0352;hb=8923a50f4be8b08a57995352f6ad5209990c49d0;hp=8ff5656859125c1dcfc0c7e78da92cfe7f263020;hpb=2ccf4ca9610f93683a9a54fe5b65b1e417c9f9e0;p=challenge-bot diff --git a/curriculum/challenge-bot.scm b/curriculum/challenge-bot.scm index 8ff5656..933c0fa 100644 --- a/curriculum/challenge-bot.scm +++ b/curriculum/challenge-bot.scm @@ -6,15 +6,127 @@ (chapter :title [mechanical] (section - :title [arduino] + :title [arduino to deck] (subsection - :title [arduino placement]) + :title [required materials] + (p [you will need the things in this picture. + ,(figure :legend "arduino to deck / required materials" + (image :file "arduino-to-deck/0-required-materials.png")) + ,(itemize + (item [medical kit with bandages]) + (item [safety goggles]) + (item [drill bit \(we will determine size in a moment\)]) + (item [drill]) + (item [alan wrench]) + (item [wood block]) + (item [arduino]) + (item [#6-32x3/8\", four of them]))])) (subsection - :title [first hole and screw]) + :title [first hole] + (subsubsection + :title [choosing drill bit] + (p [choosing the right drill bit depends on what job you are doing. + right now, we are making holes for screws to hold the + arduino to the deck. + this means the hole needs to be big enough for the + screw body to fit through. + we want the screw to stay put once it's in place. + we also want the drill bit to be smaller than the + diameter of the thread. + the screw was chosen so that the hole on the arduino + was bigger than the body and smaller than the thread. + we will choose the biggest drill bit that fits through + the hole on the arduino.]) + (p [here's a diagram of a screw] + (figure :legend "screw" (image :file "arduino-to-deck/screw.png")))) + (subsubsection + :title [inserting drill bit]) + (subsubsection + :title [holding drill]) + (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"))) + (p [here's a closeup] + (figure :legend "arduino to deck / place arduino closeup" + (image :file + "arduino-to-deck/4-place-arduino-closeup.png")) + [the picture above shows where to place the arduino on the deck. + the arduino should line up with the holes on the deck. + this alignment line is highlighted in pink. + on the arduino, there's a hole on the top left, between the + orange reset button and black headers. + the green circle shows where the hole is. + the blue box encloses the arduino hole and two deck holes. + place the arduino hole mid-way between the two + deck holes.])) + (subsubsection + :title [drilling])) + (subsection + :title [first screw] + (subsubsection + :title [fastening arduino to deck using #6-32x3/8\" screw] + (p [the "#6" part of "#6-32x3/8\"" is how big around the bolt is. + it is related to wire gauge. + bigger numbers mean larger screw. + smaller numbers means smaller screws.]) + (p [check + ,(itemize + (item + [in the motor assembly, there are #4-40x1.25\" screws. + are those fatter, thinner, or the same thickness as the + #6-32x3/8\" screws?]))]) + (p [the "32" part is a measurement of how close the threads are to + each other. + this is related to the angle of the thread, which is also + called pitch. + it is a count of how many times the thread wraps around one + inch of the screw body.]) + (p [the head is the flat part where some tool, like the alan + wrench, can exert force to spin the screw.]) + (p [check + ,(itemize + (item [how many times will the thread wrap around one inch of + the screw body?]) + (item [what about 2 inches? + how many times will the thread wrap around two + inches of the screw body?]))])) + (subsubsection + :title [fasten the arduino board to the deck] + (p [push the 6-32 screw into the deck from the underside and at the + same time, spin the 6-32 screw clockwise while looking + down on its head. + twist until the bottom of the screw is + about to stick out on the top side of the deck.]) + (p [hold the arduino board flat to the deck and line up the arduino + hole so the screw can come up through it. + continue tightening the screw into the deck, spinning the same + direction as before. + tighten until the screw head touches the deck. + do not continue tightening after that.]) + (p [the arduino should still be flat against the deck still, just + as it was before tightening the screw.])) + (subsubsection + :title [assessment] + (p [does the arduino stay with the deck when the deck moves? + can the arduino board still rotate a few degrees? + warning, if you rotate the arduino board too much, you + will unscrew it from the deck and you'll have to screw it + back in. + rotating a few degrees should be ok.])) + (subsubsection + :title [arduino board move relative to deck] + (p [without any screws, the arduino board can move independently of + the deck.]) + (p [with the first screw, the arduino can rotate around one point + on the deck.]))) (subsection :title [second hole and screw]) (subsection :title [third and fourth hole and screw])) + (section + :title [breadboard]) (section :title [battery packs] (subsection @@ -40,25 +152,76 @@ (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] + (subsubsection + :title [arduino]) + (subsubsection + :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]) + (subsection + :title [sound cm per microsecond at sea level])) (section - :title [both sonars]) + :title [both sonars] + (subsection + :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]) + :title [both motors] + (subsection + :title [analogWrite])) (section - :title [untethered]) + :title [untethered] + (subsection + :title [arduino battery]) + (subsection + :title [off and on functions])) (section - :title [follow]) + :title [follow] + (subsection + :title [same wiring as untethered]) + (subsection + :title [set motor]) + (subsection + :title [go]) + (subsection + :title [determining speed])) (section - :title [stay on table]))) + :title [stay on table] + (subsection + :title [stop]) + (subsection + :title [backup]) + (subsection + :title [turn around])))) ;; Copyright 2016 daniel watson