Date: Mon, 28 Oct 2002 01:08:25 +0300 (MSK) From: "."@babolo.ru To: David Nicholas Kayal <davek@saturn5.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Show me the light Message-ID: <200210272208.g9RM8PNX096715@aaz.links.ru> In-Reply-To: <Pine.BSF.4.44.0210271319360.709-100000@blackbox.yayproductions.com>
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> I got a LED and touched it to the positive and negative ends of two 1.5v > AA batteries in a serial configuration. > The LED lit up. I then crimped on pins to the end of the LED wires and > again tested it with the batteries. Again, I saw the light. > > I plugged said tinned pins into the 2nd and 25th pinout of a 25 pin port > (the parallel port): positive lead to the 2 pin, and negative pin to\ > the the 25 pin. As far as I remember, there is open collector output on parallel port, so your wish impossible %-) Try "-" batteryes to ground, "+" batteries to "+" LED and "-" LED to data. And remember - you probably blow up your port, if not use current restrictor, usually resistor. I advice to replace LED with voltmeter in parallel with 2..5 Kohm resistor instead. -- @BABOLO http://links.ru/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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