You've got in your hands all the pieces you need to make
the world's coolest programmable bracelet. Take it to raves,
use it when you bike at night, and
just light up the night.
Best of all, you can reprogram it right from your
iPhone/iPod or computer screen.
Everything here comes in the kit, and the leather strap has the buckles
already attached.
Preparation
First, a few words about the schemer system.
It's designed to be
very easy to hookup, but it's picky about what it's connected to.
See the introduction
to the schemer bus.
Each lightboard has a specific ID on the bus (indicated by 1-5 small dots), which
allows them to light up in sequence even using the same two wires.
The dots are also the PLUS side of the lightboards, and they should be
connected to the white dots on Schemer.
Align all the white dots
on Schemer, lightboards, and sensors
facing up like in the picture.
Because leather is hard to sew through, the strap comes with laser-cut
holes. Putting conductive thread through leather also strips it, making it
less conductive, so you will want to punch holes first if you're using your
own strap.
Building
First, sew down the + and - holes.
Leave about 3 inches for winding into the battery holder.
Use a bit of tape to connect the wires to the battery.
You should see this flashing pattern.
It's important for the lightboards to be oriented like this:
the one with a single dot (1), then (2), then schemer.
You can certainly
rearrange them, but this sequence will better match your programs.
Each lightboard has a polarity (the dots are PLUS) and must be connected
with the white dots on Schemer, and the "S" on the switch.
Make sure everything is facing up like in the picture.
Tape down the previous stitches so they don't get in the way.
Connect the lightboards using two short stitches.
To test, connect to the battery as before.
You should see pattern start at the schemer, then move left.
Right lightboards and switch
Now connect the lightboards on the right side, so it's schemer, then (4), then
(5), then switch.
The back of your bracelet should like this:
Testing
Again, use a bit of tape to connect the wires to the battery.
You should see pattern start at the schemer, then move out.
One major goal is to keep the bracelet thin, so any type of traditional
battery holder
would be way too thick for us. We use the adhesive-backed liners to
make really thin, yet sturdy battery holder.
Peel off the paper backing from the liner.
With the sticky side facing up,
pass the minus conductive thread through the hole.
Now fold the edges and press them to the leather.
Then wind the thread on the
adhesive side into a small coil.
Place the battery down, minus side down, and press it until you feel
it make good contact with the thread. It should stay stuck.
Also
make a slightly larger coil with the plus conductive thread on the
small disc, sticky side up.
Press the disc unto the battery, and push the thread into the tiny notch
so it doesn't stick out.
Seal the back with the longest adhesive liner.
Et voilà!
The world's coolest, thinnest, programmable bracelet.
End notes
To program your bracelet, you need to put it into "programming mode." You know when
schemer enters this mode because it flashes its onboard light 3 times, then
turns off all the lights. In this state it waits until you send it new programs
from the screen. To get out of this mode, press the touch pad briefly and it will
resume flashing like before.
Make sure you don't press too long, otherwise it will "fade off to sleep".
Press the touch pad for 1 second until it goes into programming mode.
Put schemer in front of the yellow flower.
Press "Send".
Hold it still until the web browser finishes sending the program
If there's a problem, hold schemer closer to the screen or make the display brighter.
Then try again. If you can't get schemer to flash 3 times when you touch the pad,
try wetting your finger and make sure your finger is touching the touch pad and the
bottom hole marked minus (-). As a last resort you can use a paper clip instead to
improve the conductance.
To make your bracelet sleep at any time, press the touch pad to
go into programming mode, as before. Keep holding it down and eventually it will
"fade off to sleep".
Your bracelet can also automatically sleep after some time of inactivity... just press the
touch pad for about 1 second to wake it up.