Abstract: The temperature servo control system is an important subsystem of the digital variable temperature air conditioner and is the actuator of the digital variable temperature air conditioner. According to the working principle of the digital variable temperature air conditioner, this paper proposes a fully digital temperature servo control system based on ARM microcontroller. The hardware circuit of the temperature servo system is based on the ARM-based digital temperature controller. The indoor and outdoor temperatures are sampled through the single-wire bus digital temperature sensor DS1820, and the various operating parameters of the temperature servo system are displayed and analyzed in real time using the liquid crystal module. The temperature servo system speed control program is written using a general modular design method, and the program is implemented using C language.
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