用430实现modbus协议转换，其中使用状态机功能。-modbus change

串口通信，实现430单片机与MC35I模块之间的通信，发送AT指令来控制-Serial communication module to achieve 430 MC35I MCU and communication between the sending AT commands to control

按键红外解码，430单片机用，可改进后用于解码空调电视等-Keys IR decoding, 430 single-use, can be used to decode the improved air television