Limit Switches
Limit switches are electromechanical devices used to detect the presence or absence of an object, or to monitor the position of machinery, by physically making or breaking an electrical circuit when a preset limit is reached. They are commonly employed in industrial automation, robotics, and safety systems to control machine movement, prevent over-travel, and trigger actions based on mechanical contact. These switches provide a simple, reliable method for position sensing and are often integrated into control panels or machinery enclosures.
Developers should learn about limit switches when working on projects involving industrial automation, robotics, or embedded systems that require precise position control or safety interlocks. They are essential for preventing damage to equipment by halting motion at defined limits, such as in CNC machines, conveyor belts, or automated doors. Understanding their use is crucial for implementing reliable hardware interfaces in IoT or PLC-based systems where mechanical feedback is needed.