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Sender: "piclist-bounces@mit.edu" Date: Thu, 1 Oct 2020 11:43:17 -0700 Subject: Re: [EE] RS-485 analyzer/sniffer? Thread-Topic: [EE] RS-485 analyzer/sniffer? Thread-Index: AdaYJE7/akep6/CETTywJu0Y1GPcBg== Message-ID: References: <5F7619A5.1030407@narwani.org> List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: <5F7619A5.1030407@narwani.org> Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: TempError X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of gmail.com designates 209.85.166.50 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.166.50; helo=mail-io1-f50.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=qyrx3hM3dEGoawgBqoQuUqUgqMUujligE2b6EoY1oi4=; b=JZsCTT0pBZd60RGNTnDgb5PT7ReKNP/QE7M5Vdggv8G1Yb+Ao/E9+DvYAtHkZzmRPl dk3K+kvQ1vQQWlIw/wnzinFHGN/6TkiKEE+ZRLgoowqRBxYj1ujrFYIXQ586LozwDOlU uK4DzBA88VBXy+/MvyYEoGpJzpVZUuWJuQyiEUNH3APY2hs3zVQ8mr1q70xy1e4MqcU6 M1xX0tju2b2DeRKsOtwDYns1xeyrHViY1S+3pH7SNhFXYn+uuntEhlfaXn/6S5HXN762 3tq6ds6+tdoEfyJzilL7/8twvEZ6ATgoUHISSt+9M3lhEPksaeTNXHf6vSnqOKrxc3kX iFzQ== authentication-results: spf=pass (sender IP is 209.85.166.50) smtp.mailfrom=gmail.com; mit.edu; dkim=pass (signature was verified) header.d=gmail.com; mit.edu; dmarc=pass action=none header.from=gmail.com; errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:a02:22c4:: with SMTP id o187mr7235782jao.14.1601577823479; Thu, 01 Oct 2020 11:43:43 -0700 (PDT) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 On Thu, Oct 1, 2020 at 2:05 PM Neil wrote: > Anyone have a recommendation for a budget RS-485 sniffer/analyzer? > With software, under $50 would be nice. Under $100 is workable. > Will be testing some things for someone else for a few weeks, so it's > not something I do regularly enough to warrany buying a fancy tester. Hi Neil, Does it have to be one piece of gear? An SN75176 (or MAX485) and a logic analyzer would probably get you most of the way there. I've never tried this with a Bus Pirate or Logic Pirate, but it seems this might be up their alley. I've used my Saelea for this and it's wonderful. I love their stuff. But definitely over $100, though I'm sure you'd find use for it elsewhere. Josh --=20 A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .