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CC: ApptechNZ , RossGMail , "ken@elecsyn.com" Sender: "piclist-bounces@mit.edu" Date: Sat, 25 Jul 2020 05:19:24 -0700 Subject: [EE]:: Your DS18B20 temperature sensor is likely a fake, counterfeit, clone... Thread-Topic: [EE]:: Your DS18B20 temperature sensor is likely a fake, counterfeit, clone... Thread-Index: AdZify+hprrCSU47SDipJ6fPROKhLA== Message-ID: List-Help: List-Subscribe: , List-Unsubscribe: , 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: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of gmail.com designates 209.85.208.45 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.208.45; helo=mail-ed1-f45.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=JoajkLgDJC5hCs4POe2ciuoTKYjnKGQ33/zxHOAbjek=; b=jq6d68L/cCrCXdL0rLPTbQ0hj9TTWfd1+1l6d5vSJKHcSivntekOZg6oEAU08Q2bbG hiX0krDqb0IfjFqElC/PoZnO5KBneKU5uxS6mkXTyg9VWXBFGHAl0PeEwEvdYeYyKYU2 YLCHgd3IP7mQ4Xf6dtiTxkkgnzJdQ3oThrfs2c1rBNl5jxe0lh+gML7En2I6ur8TYxZL 5aqvDShBv7Dfnp84ZV63KuxhYSRw/i5EQu6BSw74uHTEirE4l3Eddqo6twwR5JkxWDPe sfsEaHoAggOaBYJZ4p1sQYL8BCFiQOoq0aF7mmX4R56HglWK9S0tlxq3n/AZl2lH6KdL lWqA== authentication-results: spf=pass (sender IP is 209.85.208.45) 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:a50:ee07:: with SMTP id g7mr13532475eds.320.1595679600998; Sat, 25 Jul 2020 05:20:00 -0700 (PDT) x-topics: [EE] x-content-filtered-by: Mailman/MimeDel 2.1.6 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 https://github.com/cpetrich/counterfeit_DS18B20 .... unless you bought the chips directly from Maxim Integrated (or Dallas Semiconductor in the old days), an authorized distributor (DigiKey, RS, Farnell, Mouser, etc.), or a big retailer, or you took exceptionally good care purchasing waterproofed DS18B20 probes. We bought over 1000 "waterproof" probes or bare chips from more than 70 different vendors on ebay, AliExpress, and online stores -big and small- in 2019. All of the probes bought on ebay and AliExpress contained counterfeit DS18B20 sensors, and almost all sensors bought on those two sites were counterfeit. Author: Chris Petrich, 25 July 2020. License: CC BY. Source: https://github.com/cpetrich/counterfeit_DS18B20/ (Sensor information based on sensors or probes ordered well into 2020 rather than in or around 2019 are marked "*(2020)*".) --=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 .