Shields
Shields are boards to be mounted on top of the Arduino
They extend its functionality to control different devices,
acquire data, and so on …
Examples:
Motor/Stepper/Servo Shields (Motor Control)
Multichannel Analog and Digital IO Shields
Prototyping Shields
Ethernet and Wireless communication Shields
Wave Shields (Audio)
Logging and 11
GPS Accelerometer Shields
Relay Control Shields