Design Of Portable Soil Integrated Parameter Detector Based On STM32

Precision agriculture is the modern agricultural development trend.It is particularly important for the major agricultural province,Heilongjiang Province.The study of precision agriculture is one of the important ways to realize the sustainable development of agriculture.In order to meet the requirements of agricultural production,realize the reasonable use of agricultural resources and improve the yield and quality of agricultural products,we shall detect the field in the growing environment of agricultural products,such as soil moisture,temperature,salinity and soil pH,so as to intuitively know the soil information.For the above problems,this paper designs a portable soil comprehensive parameter detector based on STM32.After the experiment,it can be drawn that the portable soil comprehensive parameter detector has stable performance,which can be comparable with the common instrument in the market.And with low production cost,convenient use,fast detection and other advantages,this equipment can be used in precision agriculture.This paper firstly introduces the influence of the four parameters on agricultural production,in order to highlight its role in agricultural production;secondly,we make a comprehensive design in the overall structure and development process of the detector;then in addition to Bluetooth communication circuit design,we complete the hardware circuit design of soil temperature,soil moisture,conductivity and pH sensor.Besides,we design the sensor data acquisition software program and mobile phone end APP.Finally,we take a series of experiments and analysis,such as system standby time experiment,sensor calibration experiment,sensor contrast experiment and sensor system stability experiment,so as to prove that the detector has stable detection system and good measurement accuracy.In summary,the portable soil comprehensive parameter detector based on STM32 designed by this paper has stable work system,good measurement accuracy,small measurement error,quick and easy measurement method.It can accurately measure the soil temperature,moisture,salinity and PH.It can not only provide an important basis for agricultural precision sowing,fertilization and irrigation,but also play a role in promoting the development of agriculture and forestry.