VB开发的绘图程序，很小巧，很实用，供大家学习研究！-VB development drawing program, it is compact, it is practical for your study!

341par.zip DRIVERS for CH341

淘宝上花钱买的，CH340上位机驱动源码，可以集成自己软件里，开多一个线程来实时检测串口是否在线-Spend money on Taobao, CH340 host computer driver source code, can integrate their own software to open more than one thread are online real-time detection of serial

CH341 VC 编程指导，在VC平台上，调用驱动中的API函数，实现芯片功能。(Chip CH341-related information, including dll, manuals, drivers and so on.)