汽车无钥进入系统设计,基于PIC单片机16F639,包括电路图和源码,Automotive Keyless Entry system design, based on the PIC Singlechip 16F639, including schematics and source code

按下按钮SW1时，数码管LED1显示数字“1”；按下SW2时，数码管LED2显示数字“2”；以此类推，按下SW8时，数码管LED8显示数字“8”；无键按下时，数码管不显示任何内容。-When you press the button SW1, digital LED1 displays the number 1 when SW2 is pressed, the LED LED2 display the number 2 and so, when pressed SW8, digita