Actuator and Controllers on the robot motion

Actuator is a device that produces movement in robots. Electric motors, pneumatika, and hydraulics is an example of the actuator. In addition to the output motion, on a robot output is often required in other forms, such as displays to show the state of sensors or actuators. Display can be LED, seven segment, or LCD.

The robot requires a power supply as a voltage source for all electronic circuits contained therein. The power supply may include batteries, battery, AC power (via adapter), and solar cells.

The controller is a device that serves to process the information given sensor and then gave orders to the actuators to do certain things. For example in a search robot light, so if there is a light sensor will provide information to the controller who will then instruct the actuator to move closer to the light. Most actuators are used on the robot is 12 volt actuator  and controllers used are digital devices that can be programmed (or commonly known as a computer) for reasons of flexibility. Many devices that can be used as robot controllers, such as PC, microcontroller, PLC and other digital controllers (eg FPGA), but the most widely used (especially for a mobile robot) is a microcontroller.