First, let's summarize the serial ports 232, 422, and 485.
Serial port 232: bidirectional transmission, full-duplex, maximum rate 20Kbps, negative logic level, -15V~-3V logic "1", 3V~15V logic "0".
Se
Yesterday afternoon, I opened CCS and my computer suddenly crashed. I never encountered such a situation before. I reinstalled CCS, but it still crashed after I opened it? What happened? Although my c
As we all know, the national policy has not supported the automobile industry since 2006. Facing the entry into the WTO, will the automobile industry wait passively or take the initiative or develop b
[font=黑体]First of all, I feel helpless. For various reasons, I have to pass my PCB to someone in my organization. Because of conflict of interest, he has always wanted to get my PCB. I tried to preven
[align=left]A story tells the basic concepts in computer networks: gateway, DHCP, IP addressing, ARP spoofing, routing, DDOS, etc. [/font][/align][align=left]What is the role of a computer host gatewa