Robot Building for Beginners, Third Edition

CHAPTER 9 ■ RESISTORS

You can find inexpensive storage cases at hardware stores and variety retailers, or tackle boxes at
sporting-goods stores. Most parts (resistors, capacitors, switches, wire, screws, potentiometers, connectors,
sockets, motors, magnets, and so on) don’t need to be stored in any special kind of materials or plastic.
Choose a sturdy case that closes firmly and whose inner walls reach from the bottom to the top of the
case. If the container should fall, you don’t want your neatly sorted parts to jump over short compartment
walls and become disorganized.

Resisting the Temptation to Skip Ahead

Now you’ve got a broad collection of resistor values at your disposal. You’ll never build a robot without them.
However, before you can start using them in a circuit, you’ll need to learn about one more part... LEDs.

Figure 9-12. Components sorted in a storage case or organizer