这是利用CH452芯片连接键盘可用两线控制 LCD5110液晶显示加MSP430G2553单片机控制测试程序已在我单片机上运行 正确 内有详细的说明注释-CH452 chip to connect the keyboard can be used two-wire control LCD5110 LCD plus MSP430G2553 microcontroller control testing procedures detailed Explanatory notes in my micr