From owner-freebsd-hackers Sun Oct 27 14: 7:51 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 78DE737B401 for ; Sun, 27 Oct 2002 14:07:50 -0800 (PST) Received: from aaz.links.ru (aaz.links.ru [193.125.152.37]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4BC0B43E4A for ; Sun, 27 Oct 2002 14:07:49 -0800 (PST) (envelope-from babolo@aaz.links.ru) Received: from aaz.links.ru (aaz.links.ru [193.125.152.37]) by aaz.links.ru (8.12.6/8.12.6) with ESMTP id g9RM8PDh096716; Mon, 28 Oct 2002 01:08:25 +0300 (MSK) (envelope-from babolo@aaz.links.ru) Received: (from babolo@localhost) by aaz.links.ru (8.12.6/8.12.6/Submit) id g9RM8PNX096715; Mon, 28 Oct 2002 01:08:25 +0300 (MSK) Message-Id: <200210272208.g9RM8PNX096715@aaz.links.ru> Subject: Re: Show me the light X-ELM-OSV: (Our standard violations) hdr-charset=KOI8-R; no-hdr-encoding=1 In-Reply-To: To: David Nicholas Kayal Date: Mon, 28 Oct 2002 01:08:25 +0300 (MSK) From: "."@babolo.ru Cc: freebsd-hackers@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL99b (25)] MIME-Version: 1.0 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > 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