BEGIN:VCALENDAR PRODID;X-RICAL-TZSOURCE=TZINFO:-//Calagator//EN CALSCALE:GREGORIAN X-WR-CALNAME:Calagator METHOD:PUBLISH VERSION:2.0 BEGIN:VTIMEZONE TZID;X-RICAL-TZSOURCE=TZINFO:America/Los_Angeles BEGIN:STANDARD DTSTART:20191103T020000 RDATE:20191103T020000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT CREATED;VALUE=DATE-TIME:20191231T212021Z DTEND;TZID=America/Los_Angeles;VALUE=DATE-TIME:20200102T210000 DTSTART;TZID=America/Los_Angeles;VALUE=DATE-TIME:20200102T190000 DTSTAMP;VALUE=DATE-TIME:20191231T212021Z LAST-MODIFIED;VALUE=DATE-TIME:20191231T212021Z UID:http://calagator.org/events/1250476579 DESCRIPTION:Portland Linux/Unix Group General Meeting Announcement \;\ n \;\nWho: Russell Senior \;\nWhat: Reading wireless temperature s ensors with RTL-SDR and rtl_433 \;\nWhere: PSU\, 1900 SW 4th Ave. Roo m FAB 86-01 (Left Entrance\, Lower Level) \;\nWhen: Thursday\, Januar y 2nd\, 2020 at 7pm \;\nWhy: The pursuit of technology freedom \;\ nStream: http://pdxlinux.org/live \;\n \;\nRussell has been measur ing an array of temperature sensors in and around his house since Octobe r-ish 2011\, primarily Dallas Semiconductor DS18B20 one-wire sensors (pr eviously talk: 2013-06-06 Hacking on the Beagle Bone Black). For years\, he's had a few Oregon Scientific wireless temperature sensors outside\, but no way to log the temperatures for posterity. About a year ago\, in early December 2018\, he discovered a project called rtl_433 that uses a software defined radio to receive and decode the signals coming from t hese and similar sensors. so that they can be logged. This talk will des cribe a few of the things that are possible with rtl_433 and what Russel l does and doesn't do with the data. \;\n \;\nAbout Russell: \; \n \;\nRussell has been a Linux user since 1992. He worked for a few decades doing data management\, programming\, and analysis for a small s cientific consulting firm. Since 2005 he has been deeply involved in the Personal Telco Project and trying to bring about telecommunications in the users interests\, while also hacking on router firmware. For two yea rs\, he's been involved in an active effort to bring publicly-owned fibe r infrastructure to the Portland metro area (in furtherance of the Perso nal Telco goal). He has a possibly unnatural love for serial consoles an d RS-232\, but is too smitten to be ashamed. He describes himself as sel f-under-employed. Will work on Linux'y things for money. Will work on Sc ience'y/measurement'y things for money\, as long as Linux is or can be i nvolved somehow. He's very interested in trying to solve your telemetry problems with off-the-shelf wifi equipment and some elbow grease\, if yo u've got some. \;\n \;\nMany will head to the Lucky Lab at 1945 NW Quimby St. after the meeting. \;\n \;\nRide shares to the Lucky L ab available \;\n \;\nPLUG is open to everyone and does not tolera te abusive behavior on its mailing lists or at its meetings.\n\nTags: pl ug\, linux\, bsd\, unix\, networking\, education\, devops\, open source\ , beer\n\nImported from: http://calagator.org/events/1250476579 URL:http://pdxlinux.org SUMMARY:Portland Linux/Unix Group: Reading wireless temperature sensors w ith RTL-SDR and rtl_433 LOCATION:Portland State University Fourth Avenue Building (FAB) Room FAB 86-01: 1900 Southwest 4th Avenue\, Portland OR 97201 US SEQUENCE:1 END:VEVENT END:VCALENDAR