An effective temperature controller system using PID mechanism

The variety of applications of PID controller has led to its increasing demand and wide acceptance in industry. One of its most interesting applications is Temperature Control. Nowadays control of room temperature is significantly required. In this paper, we attempt to model the Temperature Control System using PID controller which is applied to a room in order to monitor the desired temperature at all times. The room temperature is maintained at the desired value by controlling the air conditioner in such a way that it is turned off if the desired temperature exceeds the room temperature and it turns on if the desired temperature falls below the room temperature. The variation that takes place in the temperature is from 16°C to 27°C. This study includes real time temperature control using a PID controller implemented on a microcontroller.