"基于单片机的智能灌溉控制系统设计与实现"

With the continuous development of the level of agricultural production and the increasing scarcity of global water resources, countries around the world are actively exploring effective ways and measures to save water. The smart irrigation control system is developed to solve the problem of water shortage and improve irrigation efficiency. This paper studies the single-chip microcomputer smart irrigation control system, which monitors the soil temperature and humidity in real time, sets the appropriate humidity lower limit value according to the actual temperature value, and irrigates according to the set humidity value. The intelligent irrigation control system is mainly composed of the STC89C52 single-chip microcomputer, temperature and humidity sensor DHT11 module, keypad input module, display module, and water pump module, and is programmed in C language. The function of the system is to automatically start irrigation based on the soil humidity detected by the soil moisture sensor if the detected soil humidity value is lower than the minimum humidity value set by the system. Through testing the hardware, the system can successfully achieve the target function. Keywords: Single chip microcomputer; sensor; LED display; water pump; irrigation.