From owner-freebsd-hackers Sun Oct 27 15:54:55 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 8F56B37B401 for ; Sun, 27 Oct 2002 15:54:54 -0800 (PST) Received: from gull.mail.pas.earthlink.net (gull.mail.pas.earthlink.net [207.217.120.84]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B94B43E6E for ; Sun, 27 Oct 2002 15:54:54 -0800 (PST) (envelope-from tlambert2@mindspring.com) Received: from pool0347.cvx22-bradley.dialup.earthlink.net ([209.179.199.92] helo=mindspring.com) by gull.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 185xEu-0005YG-00; Sun, 27 Oct 2002 15:54:40 -0800 Message-ID: <3DBC7C71.CCD4FE35@mindspring.com> Date: Sun, 27 Oct 2002 15:53:21 -0800 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Baldur Gislason Cc: Ronald G Minnich , freebsd-hackers@freebsd.org Subject: Re: Show me the light References: <20021027230049.3BD9DAB93@tesla.foo.is> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit 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 Baldur Gislason wrote: > I have powered leds from the parallel port, there's about 10mA of current > available on each data pin without destroying anything. so I wired 8 leds, > each with a 330 ohm series resistor, no external power supply. Use 470 ohm; your chip will last longer with all bits lit. 8-). -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message