3、lephonesisveryfast.Especiallybecausetheandroidoperatingsystemandtouchscreenisveryconvenient,touchscreenmobilephoneismoreandmorepopular.Touchscreenmobilephoneswillbethemostmainstreamconfigurationin the future.The whole system is mainly composed by STC12C5A60
5、ownloadtotheinternalmemoryofthetouchscreen,letinternal touch screen process;If the corresponding touch button is pressed,sent the data of processed by the touch screen to the microcontroller via a serial microcontroller,Then the microcontroller executes the
6、 corresponding arithmetic processing and judgment. Then thecontrollersendtheappropriateATcommandtoSIM300modulethroughtheserial2.AndDrivetheSIM300modulesendingmobilephonesignal.Thesystemalsoaddsa1302clockchip,timecanbedisplayedinrealtime.Throughtheabovemodul