I need an IC card reader that can read and write 1. Company door card data 2. Food card data 3. Bus card data. Also, how to check what chip the IC card uses. I am just curious and have no bad intentio
After a day of work, the board broke and could not display letters. I didn't find out until noon. I changed to a new board and spent an afternoon tinkering with it. It can be used now. In fact, the re
The link to this article is: [url=http://blog.sina.com.cn/s/blog_5e8facd20100g163.html]http://blog.sina.com.cn/s/blog_5e8facd20100g163.html[/url] The title is: How a great man learned analog circuits.