A Fuzzy Logic Controller (FLC) is a system that uses fuzzy logic to handle reasoning that is approximate rather than fixed and exact. Unlike traditional binary logic, which operates on true or false values, fuzzy logic allows for degrees of truth, making it useful for complex systems where uncertainty and imprecision are common. FLCs are widely used in various applications, such as temperature control, automotive systems, and robotics. The main components of an FLC include a fuzzification interface, a rule base, an inference engine, and a defuzzification interface. The fuzzification interface converts crisp inputs into fuzzy values, while the rule base contains a set of if-then rules that guide the decision-making process. The inference engine processes these rules to produce fuzzy outputs, which are then converted back into crisp values by the defuzzification interface, allowing for effective control of systems.