X-Git-Url: http://challenge-bot.com/repos/?a=blobdiff_plain;f=guide%2Fchallenge-bot.scm;h=484984f54e8fa868bcaad1244dc1939a8c622f6b;hb=0315bca53d285e7ae08188786577d340abc8ef18;hp=c746154756f71bd6a3fb111cdb6215a718ec410c;hpb=bb5ca604e5f67868dfa309b5c701a2df397a88bf;p=challenge-bot

diff --git a/guide/challenge-bot.scm b/guide/challenge-bot.scm
index c746154..484984f 100644
--- a/guide/challenge-bot.scm
+++ b/guide/challenge-bot.scm
@@ -317,11 +317,59 @@
     (item [put the breadboard on the center of the deck.
                position it so the black chip is on the right, and the
                blue line is up against the arduino.])
-    (item [press firmly in each of the corners.])))
+    (item [press firmly in each of the corners.]))
+   (p [check])
+   (itemize
+    (item [should the black chip be on the right or the left?])
+    (item [how many glue dots should be on the breadboard?])))
   (section
    :title [battery packs]
    (subsection
-    :title [leads])
+    :title [leads]
+    (subsubsection
+     :title [strip]
+     (p ["leads" are the wires coming out of the battery pack.
+         prepare the leads of the batteries by stripping them and
+         placing heat shrink on them.
+         your battery packs are not attached to your deck yet,
+         but that will be the next step.])
+     (figure :legend "batteries / prepare leads / stripping"
+             (video
+              :file "2-batteries/0-prepare-leads/0-strip.ogv"))
+     (enumerate
+      (item (bold [do not pick up batteries by their leads!]))
+      (item [strip the leads a tiny bit at a time.
+                   keep stripping until a total of an inch is stripped.
+                   the leads are made of tons of tiny wires that will
+                   tear apart if too much insulation is stripped at
+                   once.
+                   wire made of a bunch of tiny wires
+                   is "stranded wire".])
+      (item [strip both leads of both batteries.])
+      (item [then place heat shrink on every lead.
+                  make sure the heat shrink is either clear or matches
+                  the color of the lead.]))
+     (p [check])
+     (itemize
+      (item [should you pick up a battery by its leads?])
+      (item [should you strip the leads a large amount at a time?])
+      (item [what's the name of wires made of a bunch of tiny
+                    wires?])))
+    (subsubsection
+     :title [wrap]
+     (p [do the next 2 sections with just one lead at a time.
+            wrap, then solder one battery lead before moving on to the
+            next.
+            wrap the stranded wire around a solid core wire, as shown
+            in this video.])
+     (figure :legend "batteries / prepare leads / wrap"
+             (video
+              :file "2-batteries/0-prepare-leads/1-wrap.ogv"))
+     (p [the solid core wire is the stiff short wire.
+             it is much easier to poke into the breadboard.])
+     (p [check])
+     (itemize
+      (item [why are we using a solid core wire?]))))
    (subsection
     :title [deck attachment]))
   (section