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one is marked "- - - - -" on the side of the case)
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1
6mm push button switch
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1
6-pin header
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7
OPTIONAL 4-Pin Locking Headers (not shown in this picture)
Note that some of the components, notably the Atmel processor and the surface-mounted
components pre-soldered to the PC board are static sensitive, so you should avoid sources of
static electricity while you are handling them. We recommend that you assemble the Eggtimer
on a wood or metal surface unless you are fortunate enough to have a high-temperature anti-
static mat (don't buy one just to build the Eggtimer, however!) Avoid putting it on plastic
surfaces that generate static, and preferably put it together in a room that's not carpeted. That
being said, it's very unlikely that you will zap any of the components in the Eggtimer with
static electricity, but consider yourself notified of the possibility...
Also note that some of the components are polarized, i.e. it matters which way you put them in.
If you solder one of these components in backwards, the effect will range from something not
lighting up (LEDs) to nothing at all working (processor). It is CRITICAL that you test-fit the
parts before you solder, and that you make SURE that you have them pointed the right
direction before soldering. Like the old adage says, "Measure twice, cut once." If you solder a
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