Design of horticultural wireless intelligent maintenance system based on STM32 and Android

Abstract

According to the need of indoor potted plant maintenance, the control system is designed with STM32 single chip microcomputer and Android technology. To solve the problem of wiring difficulty in traditional wired control system, wireless monitoring is realized by using Internet of things and wireless sensor technology. The system detects soil moisture, pH value, environmental temperaturehumidity and illuminance of potted plants by sensor module, and the detection value is displayed after being processed by STM32 single chip microcomputer. Set the range of humidity value, temperature value, pH value and the minimum threshold of light intensity by pressing the key, and compare the set value with the monitored parameter value. If the humidity value is not within the set value range, the SCM outputs the control signal to start or close the solenoid valve for watering; if the temperature value is not within the range, the heater can be started for heating or the fan ventilation can be started for cooling; if the pH value is not within the range, an alarm will be given automatically to remind the user to fertilize and allocate the soil;when the photosensitive sensor module detects that the light intensity is insufficient, it turns on the LED light to supplement the light. At the same time, Android application is developed to realize remote control of watering, lighting and ventilation through mobile terminals. The simulation results show that the system has a high degree of automation, which can realize the intelligent maintenance of horticulture. It is of great significance to further improve the development of planting and maintenance towards intelligent direction in China.