Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
我是一名退休的技术工程师，现在把大量时间投入到我的电子爱好中，开发各种硬件并为其编写裸机软件。
I'm a retired technical engineer dedicating a lot of time to my electronics hobby of developing all kinds of hardware and writing bare metal software for it.
