Στις Τρίτη 06 Νοέμβριος 2007 13:42, γράψατε: > Achilleas Mantzios wrote: > > Hi, > > i am building a home security system based on zoneminder under FreeBSD > > 6.2. I think i have it all sorted out, except a way to drive an external > > alarm upon camera motion. > > > > > > > > Have two states: > > > > a) (normal) Have the two wires isolated from eachother, ground, voltage > > b) (alarm) Connect the wires together (shortcircuiting the EOL). > > > > Could it be done someway with /dev/cuad* /dev/lpt* > > Probably overkill, but you can buy general purpose relay boards driven > from the parallel port, e.g., > > http://www.electronic-kits-and-projects.com/3074.htm
Thank you Chris, thats probably a good solution for commercial/industrial applications. Bill (WKK) gave me an excellent idea about using a modem, and it works very good. > > Chris -- Achilleas Mantzios _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hardware To unsubscribe, send any mail to "[EMAIL PROTECTED]"
