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Does xm10u contain an rs232 chip in it ?
Posted: Thu Aug 31, 2006 11:41 am
by ukweb
hi
Does xm10u contain an rs232 chip in it ?
So that it could communicate with the pic micro contoller.
thanks
ukweb
Posted: Fri Sep 01, 2006 3:57 pm
by Steve
Nope, the XM10U basically translates the modulation sent along the power line into TTL level signals that can then be interpreted/generated by a micro. It also provides some basic error checking (e.g. waiting for the repeated second message to appear before relaying it to the micro).
There is a similar device called a CM11U. This does have an RS232 interface and is designed to be used by a PC. I don't know what limitations it has or what format the RS232 commands are in. Using this would mean you would need a MAX converter chip to connect to a PICmicro.