说明： 此包括COM口开发所需要的测试工具，我自己的一个仪表就是这东西试出来的，并且是免费的共享的，应该结束整天用超级终端的年代到了。而且COMTOOLS 还支持两个COM口的使用很方便 (this COM port development, including the required test tools, I own an instrument that is something the trial, and is free to share the day should end with the Super Terminal to the era. But COMTOOLS also supports two COM ports to the use of convenient)
