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
Chris
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