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Controller

            Human  beings  and  animals  sense  their  surroundings  through  their  sense  organs  and  then  react
            accordingly based on the sense organs’ feedback. Robots use the same response system as human
            beings—the feedback system. The CPU of a robot does the same thing based on data collected by
            its sensors.
























            There are mainly two types of controllers that determine the robot’s behaviour. They are:

                Simple Controller: Pre-Programmed robots use the simplest form of controller. These controllers
               repeat the same operation over and over. Pre-Programmed robots are insensitive to their changing
               environment. Car manufacturing robots are such kinds of robots.

                Strong Sensory Controller: Autonomous  robots  are  intelligent  and  change  their  response
               according  to  their  ever-changing  environment.  These  robots  have  robust  sensory  tools  that
               allow detecting changes in the background. Humanoids, astronaut robots and robots used in the
               educational and medical fields come under this category.
            Sensors

            Without  the  data  supplied by  the  sense  organs,  the  human  brain  cannot  perform  intelligently
            in  any  given situation. Similarly,  controllers  would  be unable  to  perform  if the  robot’s
            sensors  do  not  constantly  feed  the  controller  about  their  position,  force,  temperature,  etc.


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