DIYEFI.org Forum

Fred, I would advise the protocol to not to rely on RS-232 hardware handshake signals for the low level flow control. Most RS-232 ports out there only utilize TX-RX pins. Others are usually hard wired. As for the layers, think of it as having command level to control the connection while allowing da...

I'm sorry I haven't had the time to read all 16 pages of previous posting here but I would like to make couple of comments. Most communication protocol are done in layers. That is in both physical terms and in control terms. By having separate layers, you can change without affecting other layers. 1...