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本文将介绍以智能集成温度传感器DS18B20为测温元件;以STC89C52单片机为其核心控制器件所构成的数字温度测控系统;通过LCD1602直观便捷地显示实时温度;由按键实现对温度范围的精确控制;当温度低于设置下限或高于设置上限时将会进行报警提示;控制电路核心为以继电器控制的降温装置及加热装置进行迅速合适的操作。
This article will introduce intelligent temperature sensor DS18B20 integrated temperature sensor components; to STC89C52 microcontroller as the core of its control device consisting of digital temperature measurement and control system; through the LCD1602 intuitive and convenient real-time display of temperature; by the keys to achieve precise temperature range control; when When the temperature is lower than the set lower limit or higher than the set upper limit, an alarm will be given. The core of the control circuit is promptly and properly operated with the relay-controlled cooling device and heating device.