Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
用TTL转USB接口进行串口通信hello world的例程,显示access denied,而且我的串口并无占用。
https://singtown.com/learn/50240/