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Arudino Shields
To make it easy to connect the standard Arduinos to external systems you can use pre-made “Arduino Shields”. These connect on top of the Arduino board.
Example shields:
- Motor control
- Ethernet
- Xbee
- Servo motor and Stepper Motor shields
Other things you can connect (with the right electronics)
Servo Motors
Servo motors were originally designed for use in radio control models. They have a lever which is moved through about 280 degrees of rotation by the motor. The Arduino has special commands to control stepper motors.
Stepper Motors
Stepper Motors are special motors that move in individual steps. They can be used for precise control over position or speed of rotation.
Infrared Choppers
An infrared light can be shone through a gap to detect levers or other mechanical parts that interrupt the light beam
.
Distance Sensors