From owner-freebsd-hardware@FreeBSD.ORG Wed Aug 6 12:42:35 2003 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 62A0A37B401 for ; Wed, 6 Aug 2003 12:42:35 -0700 (PDT) Received: from boleskine.patpro.net (boleskine.patpro.net [62.4.20.155]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7937443F75 for ; Wed, 6 Aug 2003 12:42:34 -0700 (PDT) (envelope-from patpro@patpro.net) Received: from patpro.net (cassandre [192.168.0.1]) by boleskine.patpro.net (Postfix) with ESMTP id 7A15F36 for ; Wed, 6 Aug 2003 21:42:34 +0200 (CEST) Date: Wed, 6 Aug 2003 21:14:59 +0200 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Resent-Date: Wed, 6 Aug 2003 21:42:32 +0200 Content-Transfer-Encoding: quoted-printable Resent-Message-Id: <4595BAC2-C842-11D7-A73A-0030654D97EC@patpro.net> Resent-To: freebsd-hardware@freebsd.org Mime-Version: 1.0 (Apple Message framework v552) From: Patrick Proniewski To: Jim King Message-Id: <1F406FA2-C846-11D7-A73A-0030654D97EC@patpro.net> Resent-From: Patrick Proniewski X-Mailer: Apple Mail (2.552) Subject: Re: temperature acquisition on FreeBSD X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Aug 2003 19:42:35 -0000 On mercredi, ao=FB 6, 2003, at 15:15 Europe/Paris, Jim King wrote: > That's the one (DS9097U). ok > Thermochron would be more expensive. They're $25 each; a plain=20 > temperature iButton is $7, and bare DS1920s are probably a lot less=20 > than that. Also, DalSemi has had major problems producing=20 > Thermochrons and quantities have been pretty limited for the last=20 > couple years. (A Thermochron is a nifty toy to have though - I've had=20= > fun with mine.) I definitely want one :) > Clarification: The bare temperature device is the DS18S20. In small=20= > quantities they're $2.57 from DalSemi. In really small quantities=20 > they'll probably send you free samples. ok > The DalSemi 1-Wire bus is really a bus - if you want more devices you=20= > just wire them onto the bus (i.e. connect them in parallel with the=20 > other devices). > > fyi, I played with mlan3 a little bit. I connected one of the DS1920=20= > probes from my Spiderplant HLT into a DS9097U, and the 'temp' program=20= > from mlan3 worked fine and was able to display temperature readings=20 > from the probe. great, thanx a lot, I'm going to order the hardware after my vacation,=20= so that I'll have a funny september. And with some luck I'll be able to=20= plot the temperature of Steve Jobs Keynote at Apple Expo (Paris) ;)) patpro --=20 "Rien ne se perd, rien ne se cr=E9e, tout s'empile" - Mon bureau -