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Top Forums Programming Arduino UNIX Time - Syncing Computer UNIX Time to Arduino Time with Python Post 303042425 by Neo on Tuesday 24th of December 2019 03:34:02 AM
Old 12-24-2019
Also, on macOS, I added this to launchd so it would sync the unix time with the Arduino UNO on startup:

Code:
macOS:LaunchDaemons# ls -l *neo*
-rw-r--r--  1 root  wheel  453 Dec 24 15:30 com.neo.startup.plist

Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>Label</key>
        <string>com.neo.startup</string>
        <key>ProgramArguments</key>
        <array>
                <string>/usr/bin/python</string>
                <string>/usr/local/bin/neo/checkArduino.py</string>
        </array>
        <key>StartInterval</key>
        <integer>1</integer>
</dict>
</plist>

Code:
macOS:LaunchDaemons# launchctl load -w /Library/LaunchDaemons/com.neo.startup.plist

Unfortunately, because this python script is not a "proper" macOS launch daemon, it will not "keep alive", so I still use cron for that. Maybe I'll find a way to fix this later. Maybe I need to move it to LaunchScripts versus LaunchDaemons? Anyway.... think I'll "call it good" on the unix time sync experiment for now... and as we all know....

It's only rock and roll, and I like it.
 

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Time::Piece::MySQL(3pm) 				User Contributed Perl Documentation				   Time::Piece::MySQL(3pm)

NAME
Time::Piece::MySQL - Adds MySQL-specific methods to Time::Piece SYNOPSIS
use Time::Piece::MySQL; my $time = localtime; print $time->mysql_datetime; print $time->mysql_date; print $time->mysql_time; my $time = Time::Piece->from_mysql_datetime( $mysql_datetime ); my $time = Time::Piece->from_mysql_date( $mysql_date ); my $time = Time::Piece->from_mysql_timestamp( $mysql_timestamp ); DESCRIPTION
Using this module instead of, or in addition to, "Time::Piece" adds a few MySQL-specific date-time methods to "Time::Piece" objects. OBJECT METHODS
mysql_date / mysql_time / mysql_datetime / mysql_timestamp Returns the date and/or time in a format suitable for use by MySQL. CONSTRUCTORS
from_mysql_date / from_mysql_datetime / from_mysql_timestamp Given a date, datetime, or timestamp value as returned from MySQL, these constructors return a new Time::Piece object. If the value is NULL, they will retrun undef. CAVEAT "Time::Piece" itself only works with times in the Unix epoch, this module has the same limitation. However, MySQL itself handles date and datetime columns from '1000-01-01' to '9999-12-31'. Feeding in times outside of the Unix epoch to any of the constructors has unpredictable results. Also, MySQL doesn't validate dates (because your application should); it only checks that dates are in the right format. So, your database might include dates like 2004-00-00 or 2001-02-31. Passing invalid dates to any of the constructors is a bad idea: on my system the former type (with zeros) returns undef (previous version used to die) while the latter returns a date in the following month. AUTHOR
Original author: Dave Rolsky <autarch@urth.org> Current maintainer: Marty Pauley <marty+perl@kasei.com> COPYRIGHT
(c) 2002 Dave Rolsky (c) 2004 Marty Pauley This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Time::Piece perl v5.12.4 2008-06-07 Time::Piece::MySQL(3pm)
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