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Servo Basic Concepts

A practical overview of AC servo systems and their implementation is presented by Yaskawa. Aimed at the technical person who is new to the world of servos, this video 1) defines what a servo is and examines its components, 2) explores how a servo works within a motion control system, 3) the concept of a servo “axis”, 4) system power up, 5) directional movement, 6) over-travel limit switches 7) distance and position, 8) homing, 9) actuator types.  

Use Arduino to Switch Power On and Off!

Mike picked up a $10 SainSmart 8 Channel DC 5V Relay Module, hooked it up to an Arduino micro controller (a Raspberry Pi should work, too!) and the next thing you know he’s remotely controlling 8 electrical devices… it’s like building an 8 channel remote, each relay on the board can handle some serious juice, up to 10A 230V AC, 30V 10A DC. It’s super easy to set up. Learn how in the video!  

ENGR 5520: Sensors and Actuators, Overview Part 1

A sensor is a device that changes a physical parameter to an electrical output. As against, an actuator is a device that converts an electrical signal to a physical output. …Sensor generates electrical signals while an actuator results in the production of energy in the form of heat or motion.  

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