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Just a thought.
Posted: Sat Jun 12, 2010 5:13 am
by eddie
We have been interfacing to the parallel port for different projects on a computer only. Then it hit me. linux based router + one or more hp jet directs (or similar) would be the ultimate home control system. I have an old 3 port jet direct. You can probably get them for a song if you can find one. Missed opportunity for HP? What does everyone think?
Re: Just a thought.
Posted: Sat Jun 12, 2010 7:01 pm
by VE1IO
Re: Just a thought.
Posted: Mon Jun 14, 2010 4:11 pm
by eddie
No that is not really what I am looking at. A jet direct is a networked 3 parallel port device and not a printer. parallel ports usually have 8 pins that can be used to control other devices. With a few cheap logic chips and latches, that can be multiplied for more points of control. Without additional chips that means I can control 24 devices digitally (on or off) not including what other input lines could be used for. For example I could control 24 different water sprinkler systems being on/off remotely, 24 different applicances on/off or etc all from the internet without using a computer to do it.,