Smart Smart Watch is one of wearable devices which have become the current hot spot now. This paper simply introduces the development and application of the Smart Watch, the principles and characteristics of E-paper technology, and then proposes a design plan of the Smart Watch based on E-paper technology and shows the hardware and software design of the system. The microprocessor of the system communicates with Bluetooth 4.0 module through serial interface and display port information timely, receives information from the Acceleration Sensor through IIC interface and transmits the processed information to E-paper display to achieve pedometer function that will play a very important role in human health and life.
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