atmega48_t112_gps,此程序用于车载后视安防产品。通过GPS 获得时间或车速。通过车速来控制TFT LCD 7寸屏的开关。-atmega48_t112_gps, this procedure for car rear view security products. Obtained by GPS time or speed. The vehicle speed to control the TFT LCD 7-inch screen and off.