help!
2006-11-20 22:38:11 · 2 answers · asked by Professional 3 in Computers & Internet ➔ Hardware ➔ Other - Hardware
Hi there:
I work with interfaces to computers all the time for my tiny website:
kidbots.com
You can look at the last three discussions related to your question, that I have previously answered :
Parallel port to 20 outputs
http://answers.yahoo.com/question/index;_ylt=AqWHZ_1zgwA2LxeaG7Lgh2nsy6IX?qid=20061013094649AA3FtrD
Economical package to switch things on/off
http://answers.yahoo.com/question/index;_ylt=AqNDTXWkSAqmcHhe6A4g_x3sy6IX?qid=20061024101946AA2VckB
What can you use a power supply for
http://answers.yahoo.com/question/index;_ylt=AtjQVI7ThG2t2vOZ8N0obT3sy6IX?qid=20060901195821AAkrUkV
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These discussions should show you how to get the power you need, and lots of information on how to connect to the computer.
I will be posting the actual wiring on my website, but not in time for your answer... Other websites have excellent simple examples, and these are listed in the above discussions..
Hope this information helps
robin.
2006-11-24 18:13:33 · answer #1 · answered by robin_graves 4 · 3⤊ 0⤋
I suggest you use an external power source switched by a transistor /optocoupler/relay powered by the parallel port.
2006-11-21 06:49:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋