本设计为基于MSP430单片机的两线制一体化智能温度变送器模块，它支持工业上常用的热电阻与热电偶传感器，同时它还能够通过简易的RS-232口进行参数设定。系统主要由电源模块、AD采样模块、MCU模块、通讯模块及就地指示模块等部分组成。软件上采用了限幅平均滤波、数字校准、迭代等方法，与硬件配合，获得了比较高的检测精度。该温度变送模块具有电路简单、 精度高、 超低功耗等特点，它可以很方便地安装到现场，实现对温度的实时检测，具有较好的实用价值。-The design is based on the integration of the MSP430 microprocessor intelligent temperature transmitter module. It support heat resistance and thermocouple sensors commonly used on the industrial. It’s parameters also can be set by a simple RS-232 Interface. System is mainly composed of power modules, AD sample module, MCU module, communications modules and scene instructions module. On the software used an average rate of filtering, digital calibration, iterative methods, and Cooperation whith hardware, access to the relatively high detection accuracy. The characteristics of temperature transmission modules is simple circuit, high precision, ultra-low-power, it can be easily installed to the scene and achieve real-time detection of temperature, has good practical value