Return-Path: Received: from [206.46.252.44] (HELO vms044pub.verizon.net) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 752780 for flyrotary@lancaironline.net; Mon, 21 Feb 2005 12:38:36 -0500 Received: from 172.18.12.38 ([172.18.12.13]) by vms044.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04 (built Dec 24 2004)) with ESMTPA id <0IC900G77VO2S4N1@vms044.mailsrvcs.net> for flyrotary@lancaironline.net; Mon, 21 Feb 2005 11:38:26 -0600 (CST) Date: Mon, 21 Feb 2005 17:38:26 +0000 From: Bob Kuc Subject: Re: [FlyRotary] Re: Digital Fuel Monitoring System To: "Rotary motors in aircraft" Message-id: <0IC900G78VO2S4N1@vms044.mailsrvcs.net> MIME-version: 1.0 X-Mailer: Openwave WebEngine, version 2.8.12 (webedge20-101-197-20030912) Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit I have also been toying about building a "black Box" to monitor things. Besides the fuel level monitor, outside temp, data from EMC2 and such. I can program it but building the components is the challenging stuff and that is why it interests me. As i feed the airplane voltage into my application, I divide the current by 1/3 so that I can feed my microchip ADC. In my prototype, I have been using 1M resistors to do the division. Does it matter on the size? My thinking is, since I only want to voltage, the higher the better. Bob K