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以STC89C51单片机为核心,采用模块化结构,设计了一款具有按键设置、温度采集、温度比较、温度调节、液晶显示、声光报警等功能的育苗系统。系统通过按键设置上下限,以DS18B20温度传感器为信号采集器件,所采集信号经温度比较和温度调节模块,达到最适值,最终液晶显示上下限和环境温度,并且当温度不在设定范围内时蜂鸣器报警。该系统具有功耗低、性能稳定、易于操作的特点。
With STC89C51 microcontroller as the core, a modular structure was designed to design a nursery system with the functions of key setting, temperature acquisition, temperature comparison, temperature regulation, liquid crystal display and sound and light alarm. The system sets the upper and lower limits by the keys to DS18B20 temperature sensor for the signal acquisition device, the signal collected by the temperature comparison and temperature control module to achieve the optimum value, the final liquid crystal display upper and lower limits and ambient temperature, and when the temperature is not within the set range Alarm The system has low power consumption, stable performance, easy to operate features.