PID based Temperature Controller
From the ancient age, humans are tying to control various parameters of various system in this Nature. Now humans have a good control of fire, wind and water (not truly). So, there are many intelligent way to control the parameters of a system. Now, temperature, level, flow, density of every fluid; motor speed; all types of vehicle speed; inclination of air ship and spaceship; direction of ships and cars etc. are needed to be controlled. Now, there are many kinds of controlling mechanisms, i.e. on-off type controller, proportional controller, digital sensing mechanism, PID controller, and etc. Among of them, PID controller is the best known controller within affordable range.