Description: Based on AT89C51 microcontroller and intelligent temperature sensor DS18B20. Temperature measurement points set the appropriate temperature, the offline. Temperature sensor DS18B20 the temperature into a digital signal into the microcontroller, and with the set alarm temperature of the upper and lower limit comparison information through the LCD display. If the real-time temperature exceeds a set temperature of the upper and lower limits on the one hand by the LCD to display information, and alarm sound the other hand, turn on or off automatic control relay to control the opening and breaking heat source to achieve temperature conduct real-time monitoring purposes.
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DS18B20wendukongzhi.doc
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