Project description: Using temperature and humidity sensor to obtain temperature and humidity of soil, and transmit the index of potted plant to cloud server to update the plant status in time; If the plant status is poor, it will be sent to Android App to remind the user; The App can load the potted index from server, and connect with the potted plant with Bluetooth to achieve the interaction with the potted plant (such as watering); The App has plant cultivation guidance and observation diary to educate children and cultivate their observation competence