[font=Microsoft YaHei][size=4]Notes on "RT-Thread Kernel Implementation and Application Development Practical Guide"[hr][/size][/font][url=home.php?mod=space&uid=73808][font=Microsoft YaHei][size=4]@d
[url=http://finance.ifeng.com/company/data/news/152.shtml][color=#1e00ff]China Securities Network[/color][/url] News: At the press conference of the "2009 China Industrial Economic Operation Summer Re
Remote Control LED BillboardAbstract: A new scheme of remotely controlling LED billboards through a handheld transmitter is proposed, and the system scheme of high-stability wireless digital communica
F149, two square wave signals A and B, A signal connected to P2.1, P2.2, P2.1 set to rising edge trigger, P2.2 set to falling edge trigger, B signal connected to P2.3, P2.3 set to rising edge trigger,