nanog mailing list archives
Re: Cheap temperature sensors
From: Simon Lockhart <simon.lockhart () bbc co uk>
Date: Sat, 4 Oct 2003 07:46:53 +0100
On Fri Oct 03, 2003 at 10:34:59PM -0700, Bill Woodcock wrote:
Try $130. These are what Citylink uses, and we're installing now. http://www.digitemp.com/dt1a-isp.shtml
This is very similar to what I'm just starting to use. I've got the DS9097U attached to our Lantronix console server (but anything which does 9600 baud and can generate a Break will do), and I hang a daisy-chain of iButton temperature probes off of that. The 1wire protocol is a little wierd in places, but I've written several chunks of code to interrogate these iButtons (both direct attached via 9097 and 9097U, and also 9097U via console server), and am just in the process of integrating into our management systems. All in all, a very cheap solution - you can get a working 1 probe system for about $50 if you buy the eval kit, or much less if you buy the bits individually. Simon -- Simon Lockhart | Tel: +44 (0)1628 407720 (x37720) | Si fractum Technology Manager | Fax: +44 (0)1628 407701 (x37701) | non sit, noli BBC Internet Operations | Email: Simon.Lockhart () bbc co uk | id reficere BBC Technology, Maiden House, Vanwall Road, Maidenhead. SL6 4UB. UK
Current thread:
- Re: Cheap temperature sensors Bill Woodcock (Oct 03)
- Re: Cheap temperature sensors Simon Lockhart (Oct 03)
- <Possible follow-ups>
- Re: Cheap temperature sensors matthew zeier (Oct 22)