culfw
GPL'd firmware for the CUL family of devices
culfw is a GPL'd firmware for the CUL family of devices from http://busware.de.
culfw is used in conjunction with the CUL/CUN/CUR and a high level software like fhem to automate some common tasks in the household like switching lamps / shutters / heating / etc. and to log events like temperature/humidity/power consumption. culfw supports following RF protocols:
"SlowRF" mode: FS20: send/receiveo, FHT: send/receive, S300: receive, EM1000: receive, HMS: receive, Hoermann: receive. ESA2000...