| L80-01 is a greenhouse temperature and humidity control system based on STC89C52 microcontroller and SHT11 temperature and humidity acquisition module. The system uses STC89C52 microcontroller as the controller and SHT11 as the temperature and humidity data acquisition system. The temperature and humidity parameters of the greenhouse can be adjusted by touching the buttons. The microcontroller hardware system is designed according to actual needs. The system can realize data collection, data processing, and numerical display. , keyboard scanning and other functions. This greenhouse temperature and humidity control system based on a single-chip microcomputer and SHT11 temperature and humidity sensor has reliable performance and simple structure, and can realize automatic adjustment of temperature and humidity in the greenhouse. |
| After the greenhouse temperature and humidity control system is powered on, the user adjusts the temperature and humidity values by touching the buttons. The microcontroller system saves the values set by the user in the EEPROM inside the STC89C52. After the microcontroller enters the main program, it starts to detect by query. Temperature and humidity status of temperature and humidity sensor SHT11, and the corresponding value is displayed and output through LCD1602. When the temperature (or humidity) in the greenhouse is less than the set value, the microcontroller will make the heating device (or humidification device) start to work through the control output interface; when the temperature (or humidity) in the greenhouse is greater than (or equal to) the set value When, the microcontroller will make the cooling equipment (or drying equipment) start working through the control output interface. |
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