On 6/7/08, Alessandro Queri wrote: > Hello all. > > I guess if any of you has a good reference for building a power line > serial transmitter/receiver. The bitrate is not an issue, the aim is to > send ac power metering to a remote display unit. Any help is apreciated. Both the transmiter and the receiver must be supplied from the same phase. The power line must be quite clean for both X10 and modem options. Imagine how would work if you have plugged a welder and a boring mill on your home mains and both are working ... -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist