Arduino UNIX Time - Syncing Computer UNIX Time to Arduino Time with Python Post: 303042410

Sponsored Content

Top Forums Programming Arduino UNIX Time - Syncing Computer UNIX Time to Arduino Time with Python Post 303042410 by Neo on Tuesday 24th of December 2019 12:20:18 AM

12-24-2019

Administrator

Here is the Python 2.7.16 code I quickly put together to send unix time to the Arduino UNO.

I assume it also works on Python3, but I have not tested it because I have not completely upgrade python on my mac pro yet, sorry about that.

Code:

# -----------------------------------------------------------
# Sync Unix Time with Arduino Initial Draft 0.1
# Written on macOS, tested with Python 2.7.16
# Neo, December 2019
# This code needs refinement to be more general
# I will improve this code later when I need to use it in an Arduino project
# For now, it works "OK" and serves it purpose
# Feel free to improve, modify as you like.
# -----------------------------------------------------------
import serial
import time

ser = serial.Serial(
    port='/dev/cu.usbserial-40',  #change this for your device
    baudrate=9600,
    parity=serial.PARITY_NONE,
    stopbits=serial.STOPBITS_ONE,
    bytesize=serial.EIGHTBITS,
    timeout=0)

print("connected to: " + ser.portstr)

# this will store the line
line = []
ux = 0
a = False
debugScript = False
offset = 2 .  #adjust this time offset (in seconds) to account for various time delays in script and transferring via the serial port, etc. to insure the Arduino is in closer sync to the computer
time_int = 1000  # this can be any number greater than zero and less than recent unix time
count = 0
while True:
    if debugScript:
        print(str(int(time.time())))
    for c in ser.read():
        if not a:
            if ux < time_int:
                ser.write("T")
                ux = int(time.time())+offset
                ser.write(str(ux))
                ser.write("\n")
                ser.flush()
                if debugScript:
                    print("unixtime: " + str(ux))
        line.append(c)
        count += 1
        if c == '\n':
            print("Line("+str(count)+"): " + ''.join(line))
            x = int(time.time())+offset
            print("time("+str(count)+"): " + str(x) + "\n")
            line = []
            a = True
            break
ser.close()

Neo

View Public Profile for Neo

Visit Neo's homepage!

Find all posts by Neo

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Help me!First time use UNIX.

I am assigned a programming work.It is my first time to use unix. The task is writing a shell script to interrogate the university Unix operating system to determine the number of "Runnable" processes at any given time.Then append the result,along with a time-stamp,on a log file. Also there are...

2. UNIX for Advanced & Expert Users

How To Provide Time Sync Using Nts-150 Time Server On Unix Network?

can anybody tel lme,how to instal NTS -150 on a unix network,it needs some patch to fetch time frm serve,,??

3. Shell Programming and Scripting

Convert Unix Time to Standard Time

I have a list of interfaces and time the interface was last active. I can't figure out how to convert the time in the second column, Fa1/14 0 Se0/0/0 0 Fa1/11 0 Fa1/9 0 Fa1/0 0 Se0/0/1 1240401408 Gi1/0 0 Fa0/0 1240401408 Fa1/3 0 Fa1/8 0 Fa1/15 0 Fa1/13 0 Fa1/10 0 Fa1/1 0 Fa1/12...

4. Shell Programming and Scripting

Unix time

how do i convert unix time to show normal eg i have unix time 1297702242 and i want it converted to normal time. how do i do that

5. Shell Programming and Scripting

How to get time duration between two human readable time stamp in Unix?

Here is two time I have: Jul 12 16:02:01 Jul 13 01:02:01 and how can I do a simple match to get difference between two time which is 09:00:00 Thanks in advance.

6. UNIX for Dummies Questions & Answers

Converting string date time to unix time in AWK

I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk. I tried This is how each line of the file looks like, different date and time in this format Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th ...

7. Shell Programming and Scripting

Adding time to date time in UNIX shell scipting

I needed some help in adding a duration (in seconds) to a start time (in hhmmss format) and a start date (in mmddyy format) in order to get an end date and end time. The concept of a leap year is also to be considered while incrementing the day. The code/ function that I have formed so far is as...

8. Shell Programming and Scripting

Convert UTC time into current UNIX sever time zone

Hi guys thanks for the help for my previous posts.Now i have a requirement that i download a XMl file which has UTC time stamp.I need to convert UTC time into Unix server timezone. For ex if the time zone of unix server is CDT then i need to convert into CDT.whatever may be the system time...

9. Programming

Arduino-cli - Uploading to Unknown Chinese Arduino Boards using the Arduino Command Line Interface

In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today. https://github.com/arduino/arduino-cli I followed the instructions for macOS but when I got to this part: arduino-cli board list I got the dreaded "Unknown" Fully Qualified Board Name...

LEARN ABOUT DEBIAN

audio::mpd::common::time

Audio::MPD::Common::Time(3pm)				User Contributed Perl Documentation			     Audio::MPD::Common::Time(3pm)

NAME

       Audio::MPD::Common::Time - class representing time of current song

VERSION

       version 1.120881

DESCRIPTION

       Audio::MPD::Common::Status returns some time information with the "time()" accessor. This information relates to the elapsed time of the
       current song, as well as the remaining and total time. This information is encapsulated in an Audio::MPD::Common::Time object.

       An Audio::MPD::Common::Time object does not update itself regularly, and thus should be used immediately.

       Note: one should never ever instantiate an Audio::MPD::Common::Time object directly - use the mpd modules instead.

ATTRIBUTES

   $time->time;
       The time passed to the constructor, used to compute all others values (see methods). It is the time value (on the "time" line) of what the
       MPD server returns to the status command. Defaults to "0:0".

METHODS

   my $str = $time->sofar;
       Return elapsed $time ("minutes:seconds" format).

   my $str = $time->left;
       Return remaining $time ("minutes:seconds" format).

   my $str = $time->left;
       Return total $time ("minutes:seconds" format).

   my $percent = $time->percent;
       Return elapsed $time (percentage, 1 digit).

   my $secs = $time->seconds_sofar;
       Return elapsed $time in seconds.

   my $secs = $time->seconds_left;
       Return remaining $time in seconds.

   my $secs = $time->seconds_total;
       Return total $time in seconds.

   my $mins = $time->sofar_mins;
       Return minutes part of elapsed $time.

   my $secs = $time->sofar_secs;
       Return seconds part of elapsed $time.

   my $mins = $time->left_mins;
       Return minutes part of remaining $time.

   my $secs = $time->left_secs;
       Return seconds part of remaining $time.

   my $mins = $time->total_mins;
       Return minutes part of total $time.

   my $mins = $time->total_secs;
       Return seconds part of total $time.

AUTHOR

       Jerome Quelin

COPYRIGHT AND LICENSE

       This software is copyright (c) 2007 by Jerome Quelin.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.14.2							    2012-04-01					     Audio::MPD::Common::Time(3pm)