Hardware Reference
In-Depth Information
Fish Fin Switch
Figure 5-3. Fin switch
To make the fin, sew one half of a snap to a small piece of fabric
with conductive thread. Knot and seal it at the back (but don't
snip the thread), then cover the snap by folding the fabric in half.
Stitch two nonparallel lines in plain thread, creating the outline
shape of a fin surrounding the snap. Cut of the excess fabric
about 1/4 from the seam and turn the fin right-side out. This
way, the stitches on the back of the snap are concealed from
view. You should now have a long piece of conductive thread
coming from the inside of the fin.
Stitch the other half of the snap to the body of the fish (on your
shorts) with conductive thread and use a running stitch to con-
nect it to a pad marked GND on FLORA. Line up the snap on the
fin with the snap on the body and snap them together, then
stitch the fin to the body with plain thread.
Pick up the conductive thread tail coming out of the fin and use
it to stitch a path to TX (aka D1) on FLORA. These two parts will
serve as a switch, detectable when you snap and unsnap the fin
(see Figure 5-3 ).
Double-check your circuit for stray threads, and get ready to
load it with a program that will change the lure's color when you
snap the fish's fin closed.
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