An automatic measurement device is designed to measure the length of product components on the conveyor in the factory, and count them. This system uses single chip microcomputer (SCM) STC89C52 as the core, which can control driver circuit to run the stepping motor driving the conveyor. The moving component length can be calculated by the rotating speed of stepping motor and the interval of infrared sensor blocked. The displaying screen LCD1602 can show the length data and counts, and voice chip ISD4003 can broadcast them. Software adopts C language with readability and good portability to write the program.

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This paper designs a new intelligent system for watering flowers based on internet of things (IOT), which is suitable for indoor, balcony and courtyard, etc. When the flowers are neglected in long-term, intelligent device for watering flowers can do the watering operation timely and quantitatively. This device is composed of a master node and several slave nodes which communicate via ZigBee modules. A smartphone or a remote controller can control this device at any time.