A feature phone generally has a camera, Web access and a slide-out qwerty keyboard, but not the operating system with the applications that can be downloaded on a smartphone.
特色手机往往带有摄像头，可以上网，配备了滑出式全键盘，而特色手机的操作系统则无法像智能手机那样下载程序。
Software consists of system initialization, self-test, measurement range selection, balance parameter setting, calibration coefficients determining, access programs of keyboard and LCD.
软件部分主要包括系统的初始化、自检、量程选择、平衡参数设置、定标系数确定、动平衡测量、键盘中断处理、彩色液晶显示等模块。
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