基于AVR单片机的汽车协议转换器，可以使J1850 VPW协议转换成232协议，附带有详细的源代码，原理图，PCB 文件，是OBD开发的重要参考-Based on the AVR Microcontroller car protocol converter that allows J1850 VPW protocol conversion into a 232 agreement, with detailed source code, schematics, PCB files, is an i