Page 235 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build

10.1 Small electric RC car unsuitable for conversion

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10.2 Large electric RC car suitable for conversion

Stepper motors

If one wants to build a platform, stepper motors make excellent drive
motors. Some of the advantages of a stepper motor are as follows.
Because a stepper motor turns in precise increments per step, a
microcontroller can calculate the distance traveled by counting the
clock pulses given to the stepper motor and knowing the diameter
of the drive wheel. If two stepper motors are used on a mobile plat-
form, one on each side, for locomotion and steering, precision
turns are also possible. Because stepper motors are so important
in robotics, we will look at the fundamental operation of stepper
motors before we construct any circuits.
Team LRN
Chapter ten