The world's 2/5 plant species are in danger of extinction, and every time we lose a species, we lose a chance to be human. Scientists estimate that the risk of plant extinction may be much higher than previously thought. At present, 140000 (39.4 percent) of plants are threatened with extinction. The Chinese government has also issued a number of protection policies and established a comprehensive information system for rare and endangered plants in China to move endangered plants into botanical gardens for protection. Now the nature reserve has begun to take shape, effectively protecting wild plant resources and protecting the ecology. However, the current botanical garden has invested a lot of manpower and cannot intelligently work well. The 14th Five-Year Plan emphasizes the need to promote the collaborative transformation of the whole industry chain of data empowerment and strengthen digital transformation. Adhering to the concept of "contributing Chinese wisdom to plant protection", the team officially put into research and development of the cloud automatic multifunctional watering device in 2021, actively responding to the national call, implementing the 14th Five-Year Plan, continuously innovating, taking digital as the basis and technology as the basis, and striving to build the first multi-functional and multi-mode automatic watering device. At present, technology research and development and overall production development have been completed, which can automatically and real-time monitor plant environmental factors to water plants and kill insects, spray cooling, fertilization, voice prompts, lights and other functional operations, adhering to the concept of green environmental protection to increase solar panels. The application of this project will greatly save the cost of human and material resources. This project is applicable to botanical gardens, farming greenhouses, family flowers and other places. The project products are divided into social version, revitalization version, home version. The team established Shanghai xunyun information technology co., ltd on June 25, 2022, with a registered capital of 200000 yuan, of which the person in charge now accounts for 51% of the shares. The company will use this project as the first market breakthrough product to sell in the future. At present, 2000 pieces of home watering devices have been sold, with a profit of 60000 yuan. And has signed agency sales contracts with 15 college students, and has signed relevant contracts with three companies. Among them, Shenyang Youyuan Electronic Control Co., Ltd. has investment intention (registered capital 50 million). The project has also reached a cooperation strategic assistance agreement with Tang County Science and Technology Bureau of Baoding City, Hebei Province. This product is now customized for customer needs. Later, it is planned to combine Chinese style with scientific and technological elements to create a national tide brand belonging to the Chinese people and enter the international market. However, this article will focus on the direction of smart family and tell the relevant contents of family products: at the moment of normalization of epidemic situation, people have problems such as not having time to take care of green plants, not being able to take care of green plants, and unattended vegetation in public areas. based on the background of the times, such as office workers have no time to take care of flowers and plants all day on weekdays, and people on business leave home for a long time using clumsy methods leading to watering too much, unexpected circumstances such as leaving home. Now the outbreak of the epidemic, many "white" selfless dedication, can not go home. Plants in the home cannot be cared. In view of the above situation, this project combines the current situation, starting from the main background that the retrograde has no time to take care of potted plants, and carefully builds a multi-functional vegetation watering device, aiming at "epidemic" road flowers. You protect the world, I guard you. This project will provide some employment opportunities for the society, promote social development and bring economic benefits. This device is based on ESP32 development board as the main controller, and its functions are watering, spraying, killing insects and turning on lights. In the control settings, the team designed manual mode and Internet of Things WiFi mode. After the device is turned on, the ESP32 development board will connect WIFI, after the connection is successful, the display on the device will display some data obtained by the current device, view the initial data displayed, if there is no problem, that the device has started normally. At the same time, the mobile phone APP(BLYNK) can also view some data on the device, which is the same as the data displayed on the display screen. In the mobile phone APP design, the team will control mode is divided into two options, one for the automatic mode, two for the manual mode. When the device is turned on, the APP automatically defaults the current control mode to manual mode. In the manual mode, the device watering, spraying, insecticidal, lighting functions can not only be controlled by the buttons in the APP, but also directly use the buttons on the device to control it. In the automatic mode, the functions of the manual keys will all be shielded. The device automatically identifies soil humidity, ambient temperature, ambient humidity and light intensity through the loaded soil humidity sensor, DHT11 temperature and humidity sensor and photosensitive sensor, and automatically turns on or off the functions of watering flowers, killing insects, spraying and lighting through the identified parameter changes. At the same time, the team also loaded the device with an MP3 voice playback module and a rotary potentiometer for volume adjustment, which can freely design voice playback content, convert it into an MP3 format voice file through voice-to-text software (xunfei dubbing), put it into the TF card of the MP3 voice playback module, use the program to call the corresponding voice module, and add voice prompts to each function, such as turning on the watering function, voice playback prompts "Watering the flowers has been turned on" to make the device more interactive. In watering the water supply this function, the team used a water pump to achieve it; spray and insecticidal function, the team is used in life commonly used on the humidifier to replace the atomization sheet to achieve; and 8-bit RGB lights as a sunlight supplement function. At the same time, the team used CAD to design the structure of the entire device, using 3D design software (solidwork) to design the spray water storage 3D parts. Finally, the water storage 3D piece is printed by a 3D printer, assembled with the atomization module, and the designed structure is cut by a laser cutting machine. According to the design drawing of the structure, the whole device is assembled, the required sensor module is installed in the corresponding position of the device, and the written program is uploaded to realize the function of the whole device. This device mainly has the following 7 functions: 1. Detect and respond to the external environment indicators (ambient temperature, soil moisture, light intensity). The device can use the soil moisture sensor to detect the moisture degree of the soil, and display the moisture degree of the soil on the OLED display screen; 2. Remote control can be realized to operate the device. Photosensitive resistance sensor can be used to detect the light intensity of the environment and DHT11 temperature and humidity sensor can detect the ambient temperature. The humidity, temperature and light intensity of the soil in the flowerpot can be monitored in real time on the mobile phone software Blynk app. In addition, the changes of soil humidity, temperature and light intensity can also be presented in the form of line chart. 3. Manual and automatic dual-mode control The interface of the mobile phone app is respectively provided with two mode buttons to realize the control of the water pump switch: manual mode button and automatic mode button; When the manual mode button is pressed, the mobile phone can remotely control the opening and closing of the water pump, and the manual opening and closing of the water pump is accompanied by voice broadcast. When the automatic mode button is pressed, the device will automatically judge whether to water according to the temperature and humidity of the soil, and the manual mode will be automatically turned off at this time. 4. Light to improve photosynthesis The device is equipped with red and blue LED lights, which can regulate the biological effects of plants and is accompanied by voice prompts to enhance the photosynthesis of potted plants. 5. Solar power supply This device is equipped with a solar charging panel, which can be charged when the light is sufficient, which is green and environmentally friendly and saves resources. 6. Double spray water mist + insecticide, spray water mist, to achieve the effect of plant cleaning and humidification, free hands; spraying pesticides, insecticidal and weeding of potted plants, increasing the survival rate of plants. 7. The device is pre-installed with a camera module and connected to a mobile phone, which can remotely view the real-time status of plants on the mobile phone, and has the function of regular and automatic photographing, storing and recording the whole growth process of plants, bringing fun and motivation to flower cultivation. Innovation points: 1. Aishangyun automatic watering device for planting has been developed. Based on ESP32 development board, the main controller has the functions of watering, spraying, killing insects and turning on lights for flowers. In the control settings, manual mode and Internet of Things WiFi mode are designed. 2. The device automatically identifies soil humidity, ambient temperature, ambient humidity and light intensity through the loaded soil humidity sensor, DHT11 temperature and humidity sensor, and automatically turns on or off the functions of watering, insecticide, spray and lighting through the identified parameter changes. 3. The device is loaded with MP3 voice playback module and rotary potentiometer for volume adjustment, which can freely design voice playback content, through voice-to-text software (xunfei dubbing) to convert MP3 format voice files, into the TF card of MP3 voice playback module, use the program to call the corresponding voice module, add voice prompts to each function, such as turning on the flower watering function, voice playback prompt "watering flowers have been turned on", so that the device has more interactive effect.