1) Is this thing used to convert serial port to parallel port? 2) In what specific occasions is it used? 3) How to use it? [img]http://p.blog.eeworld.net/images/p_blog_eeworld_net/JiaoYanMa_3AZZK/Entr
Let me make one thing clear first. I hope someone who knows something can give me some advice. If you don't know something, don't say anything. Just say you don't know or you know a little. That way I
The protector made by 430 can control the SIM300 module to send and receive text messages. Now there is a problem. When the device runs for a long time, it will freeze or not respond to commands, that
I don't know how many methods you usually use: When we usually develop products, we often process the validity of input data by reading AD values. For particularly harsh environments, some of the data