Page 155 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists

Chapter 6 Options for Creating and Controlling Motion 135

FIGURE 6-10 Detailed specifications for the Hitec HS-311 standard hobby servo motor

Hitec and Futaba are two popular brands of hobby servo motors that you can find at
ServoCity and other sources. Figure 6-10 shows the detailed specifications for a Hitec
HS-311.
Let’s go through the items of interest in the specifications list, skipping the Control
System and Required Pulse lines for now (we’ll return to them when we talk about
motor control later in the chapter.)

• Operating Voltage This means the motor will work if you give it anywhere
from 4.8V to 6V.
• Operating Temperature Range This indicates the environment in which
you can safely use the motor. The limits here are set by the sensitive electronic
components on the printed circuit board inside the motor housing.