C+ - ATMEGA 168 - need to have interface coded

have sample code for TX to CM11A X10 device , and have libs, TX works but RX is needed. have documents on protocol as its just serial to the CM11A. just need an existing lib updated for arduino software to use with TX15B serial protocol so TX/RX is working. [login to view URL] not using anything proprietary to X10 as stated before its to the CM11A device to be converted to X10. atmega168 is using a lm35 temperature sensor, it all works except the homeseer serial RX to change setpoint.