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    Disassembly: How is the Samsung smart watch Gear Live designed?

     

    At the 2014 I / O conference, Google officially released a new wearable smart system Android Wear, while Samsung also issued a smart watch Gear Live with Android Wear. Google and Samsung are like a pair of "resentment", and they are inseparable from each other. The iFixit dismantling website was the first time for Gear Live, which made Samsung Gear Live dismantlement, how did its internal hardware make up? Love board engineer tries to follow the 藤, analyze the principle of Gear Live. Samsung Gear Positive Samsung Gear Live basically adheres to the appearance of the previous generation of products, there is not much change, we first understand the basic parameters: 1.63 "Super AMOLED display, resolution 320 x 320 pixels (278 PPI) 1.2 GHz processor, equipped with Android 4.3 operating system 300 mAh battery (rated maximum use value) 4GB internal flash memory, 512 MB RAM Digital compass, accelerator, gyroscope, heart rate monitor Bluetooth 4.0, IP67 dustproof The speed of hardware iteration is getting faster and faster, and the hardware configuration of Gear Live is a little as a few years ago. It is known from dismantling that the Gear Live uses waterproof industrial design, and the strap can be replaced. Gear Live can see a heart rate sensor and charging interface Smart watch can't be free, Gear Live uses Samsung's supermoled screen. Some smart watches are like a reduced smartphone, let's take a look at the driving part of the screen. The screen of Gear Live is also touchable, using Cypress's latest 5th generation TrueTouch touch control chip Cytma545: Best waterproof performance 32-bit Cortex kernel Display integrated design support Maximum support 6 inch screen It can be seen that Gear Live is not saved, and Cytma545 is used for touch control of large-screen smartphones. Cypress touch control chip Cytma545 Next we look at the device on the main player, the detailed process of dismantling can refer to the dismantling record. Microcontroller and wireless connection module Qualcomm Snapdragon 400 family application processor APQ8026 Gear Live's primary application processor is a Qualcomm Snapdron 400 series APQ8026 (packaged in Samsung RAM), and also configures a STM32 microcontrolment STM32F401B as a coprocessor to handle some sensor data and data acquisition tasks. The careful readers will find that this design is very similar to the IPHONE5S coordinator setting, but the microcontroller STM32F401B uses the latest Cortex-M4 core, which is more powerful. The STM32F401 microcontroller is the most different integrated FPU (floating point arithmetic unit), which is very suitable for completing some of the complex digital signal processing functions. For example, the speech control of the Gear Live is processed by the microcontroller. Gear Live is to support low-power Bluetooth 4.0 protocol. By disassembly discovery Bluetooth schemes, BCM4334W, which is BCM4334W, which is also the same as the iPhone5, which is the iPhone5 by dismantling the Bluetooth / FM single-chip solution. At this point, we can basically get a rough principle block diagram. Gear Live Principles (Love Boys Network Evaluation Center is drawn according to circuitry, for reference only) Summary, through dismantling, the hardware configuration of Gear Live is indeed, and the program is basically the latest design in the industry. Google and Samsung are the flagship model of the Android WEAR system. Of course, the hardware is only part of the product, and however, how to look at the Android WEAR system is successful.

     

     

     

     

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