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There are many type of Actuators that can be connected to Arduino and controlled by it.

Actuators cause some physical action to be taken, such as movement, lighting, heating, motor action, display of information, sending or receiving network, radio communications etc. Let's list some of the types of Actuators:
  • LIGHT: LEDs, Incandescent and Fluorescent lamps, LCD displays, lasers
  • SOUND: Buzzers, Beepers, Speakers, MP3/Audio players, synthesizers
  • MOTION: DC Motors, Stepper Motors, Servo-motors, solenoids, "muscle-wire", electromagnets
  • POWER CONTROL: Control of other electrically operated devices

Some of our HOW-TO Pages about Actuators:

Some information about DISPLAYS:

Some Examples: