Abstract
Temperature is one of the most important parameters for industrial production, Especially in the metallurgical, chemical, building materials, food, machinery, oil and other industries. MCU（Micro Controller Unit） has many advantages,for example:powerful processing capability, running fast, low power consumption and so on.it is used in temperature measurement and control, it is easy to use,with a wide range of measurement and higher accuracy character.
In this Paper,it introduced a MSP430 microcontroller-based PID temperature control device ,it can measure the temperature,and then according to the PID control calculation,it can control temperature with a high precision. The System has good human-computer interaction, stable performance, easy for operation and maintenance, high degree of automation..
