culfw
GPL'd firmware for the CUL family of devices
...: receive, Lacrosse TX2/TX3: receive, Intertechno: send
BidCos(R) in the "AskSin" mode (20kHz datarate, FM). HomeMatic(R) Wireless devices use this protocol.
When configured as an RFR (RF-Router) client, then a CUL plugged into a wall socket can communicate via high-speed RF to the base, while serving all the SlowRF protocols.
CUNO: OneWire and InfraRed support.