Page 159 - Robot Builder's Bonanza

128 BUILD A MOTORIZED METAL PLATFORM

Also see the chapters in Part 7 for working examples of using servo motors with several
popular microcontrollers. These are miniature programmable computers that, among other
things, can be adapted to run servos.
The TinBot has adequate room on both the top and the bottom of its metal plates for
mounting batteries, electronics, and other components. The plates already have holes in
them, which you can use to mount things. At worst, you can use one hole already there and
drill a second hole if the existing spacing doesn’t match the component you’re adding.

Because the TinBot is made of metal, and metal conducts electricity, be especially careful how
you mount your electronics. Never ever allow bare wires, component leads, or the underside of
circuit boards to touch the metal, or your robot parts may be irreparably damaged.
from the metal base. Or lay down a thin sheet of plastic to act as an insulator. Every time you
As necessary, use plastic washers (and plastic fasteners) to keep things physically separate

use your TinBot, visually inspect that there are no short circuits.
Do this prior to connecting your TinBot electronics to the battery and turning things on. Or
else . . . poof! “Poof” is bad, so avoid it at all costs.

12-chapter-12.indd 128 4/21/11 11:46 AM