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Thread: Object Oriented Programming
Post: RE: Object Oriented Programming
| (Aug-21-2018, 10:33 AM)Gribouillis Wrote: In fact this code breaks an important rule in OOP (yes everything is possible in python). The line
self.__class__ = statechanges the type of the instance se... |
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jackbk |
General Coding Help |
8 |
4,479 |
Aug-24-2018, 09:21 AM |
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Thread: Object Oriented Programming
Post: RE: Object Oriented Programming
| (Aug-21-2018, 12:42 PM)Windspar Wrote: First where did you get this code ?
You might consider changing to python 3.
1. Yes. self.state = Off object and Off inherit from ComputerState.
2. State is... |
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jackbk |
General Coding Help |
8 |
4,479 |
Aug-22-2018, 02:51 AM |
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Thread: Object Oriented Programming
Post: Object Oriented Programming
| Hi there,
I am learning Object Oriented Programming. I do not understand some points in following code. Could you answer me some questions?
# States of a computer
class ComputerState(object):
"... |
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jackbk |
General Coding Help |
8 |
4,479 |
Aug-21-2018, 09:05 AM |
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Thread: 'OSError: [Errno 16] Device or resource busy' for ralationship with ds1307
Post: RE: 'OSError: [Errno 16] Device or resource busy' ...
| (Jul-28-2017, 11:32 AM)gray Wrote: (Jul-28-2017, 07:31 AM)jackbk Wrote: This thread was created some months ago. I do not know whether the author can solve the problem or not.
@gray: Have you solv... |
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jackbk |
General Coding Help |
4 |
9,074 |
Jul-31-2017, 02:17 AM |
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Thread: 'OSError: [Errno 16] Device or resource busy' for ralationship with ds1307
Post: RE: 'OSError: [Errno 16] Device or resource busy' ...
| This thread was created some months ago. I do not know whether the author can solve the problem or not.
@gray: Have you solved the problem or not?
If you have not solved your problem, I would give my... |
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jackbk |
General Coding Help |
4 |
9,074 |
Jul-28-2017, 07:31 AM |
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Thread: GPS & UTC time conversion?
Post: RE: GPS & UTC time conversion?
| (Jun-05-2017, 11:47 AM)Ofnuts Wrote: According to Wikipedia you can't tell more that 6 months in the future because the necessity of the adjustment is not known in advance.
Thank you so much for you... |
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jackbk |
General Coding Help |
7 |
28,785 |
Jun-06-2017, 09:40 AM |
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Thread: GPS & UTC time conversion?
Post: RE: GPS & UTC time conversion?
| (Jun-01-2017, 11:37 AM)Ofnuts Wrote: So do go from GPS to POSIX and vice-versa you add/subtract 315964782 seconds.
POSIX time is supported in all computer libratries. In python:
Thank you for your... |
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jackbk |
General Coding Help |
7 |
28,785 |
Jun-05-2017, 04:12 AM |
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Thread: GPS & UTC time conversion?
Post: RE: GPS & UTC time conversion?
| (Jun-01-2017, 10:27 AM)Larz60+ Wrote: you need to import datetime
import datetime
import time
gps = 1180344041
print(time.strftime("%b %d %Y %H:%M:%S", time.gmtime(gps)))strftime reference here: htt... |
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jackbk |
General Coding Help |
7 |
28,785 |
Jun-05-2017, 03:05 AM |
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Thread: GPS & UTC time conversion?
Post: GPS & UTC time conversion?
| Hello,
I have 2 questions as below. Have you ever met them or had any experience for my questions?
1. How can we convert from GPS timestamp to UTC time (human can read)?
Example:
GPS timestamp: 1180... |
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jackbk |
General Coding Help |
7 |
28,785 |
Jun-01-2017, 09:26 AM |
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Thread: How does a python thread work?
Post: RE: How does a python thread work?
| (May-31-2017, 07:06 AM)wavic Wrote: ^C will kill all the program.
^Z will send it as a background job. Linux?
I can't answer the second question because I never used threads before.
Thanks. I am us... |
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jackbk |
General Coding Help |
3 |
3,967 |
May-31-2017, 07:23 AM |
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Thread: How does a python thread work?
Post: How does a python thread work?
| I have used Python thread so far, but I had a question that I can not find an answer by myself.
Google some related information, but I do not satisfy with this. Do you have any experience with this?
... |
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jackbk |
General Coding Help |
3 |
3,967 |
May-31-2017, 07:02 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: RE: How to talk with Real Time Clock hardware?
| (Feb-14-2017, 02:57 AM)Larz60+ Wrote: Here's a link on how to run Linux commands from python.
Of the methods shown, the subprocess method is safer than the os.system
method.
see https://www.cybercit... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-15-2017, 05:53 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: RE: How to talk with Real Time Clock hardware?
| (Feb-13-2017, 09:03 PM)Larz60+ Wrote: Did you look at the document in?
Quote:The MCU is a DART-MX6, and here http://variwiki.com/index.php?title=VAR-...e_Clock.29
It's still there.
the command:
hw... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-14-2017, 01:53 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: RE: How to talk with Real Time Clock hardware?
| (Feb-13-2017, 07:33 AM)Larz60+ Wrote: I thought I'd look into the RTC a bit more, but I can't even find it on the block diagram.
What is the RTC chip id?
I've programmed a bunch of these on TI SBC's... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-13-2017, 08:29 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: RE: How to talk with Real Time Clock hardware?
| (Feb-13-2017, 06:22 AM)j.crater Wrote: If there is not yet a Python library written for the hardware, then the only way to use 100% Python is to write your own API for this RTC.
But it looks like th... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-13-2017, 07:14 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: RE: How to talk with Real Time Clock hardware?
| (Feb-13-2017, 03:43 AM)Larz60+ Wrote: You will probably find everything you need in the data sheet: http://www.variscite.com/images/stories/..._v_1_1.pdf
Thank you. I already read the data sheet of ... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-13-2017, 04:23 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: RE: How to talk with Real Time Clock hardware?
| (Feb-10-2017, 11:12 AM)j.crater Wrote: Hello,
What board are you using? Does that board have a hardware abstraction Python library to control GPIO and such? That is where I would be looking for an I... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-13-2017, 02:40 AM |
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Thread: How to talk with Real Time Clock hardware?
Post: How to talk with Real Time Clock hardware?
| Dear all,
I am finding a way to read/write to my Real Time Clock Hardware by Python.
The background is as below.
I have a board that integrated an RTC named ISL12057 on it. I need to control that R... |
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jackbk |
General Coding Help |
12 |
11,310 |
Feb-10-2017, 08:14 AM |
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Thread: What is python-pyrtc?
Post: RE: What is python-pyrtc?
| (Feb-09-2017, 12:43 PM)Larz60+ Wrote: do you mean python-pyrtf ?
if so, see https://pypi.python.org/pypi/PyRTF/0.45
Thank you. I meant "python-pyrtc". This is to talk with RTC hardware by Python.
T... |
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jackbk |
General Coding Help |
3 |
4,014 |
Feb-10-2017, 06:49 AM |
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Thread: What is python-pyrtc?
Post: What is python-pyrtc?
| Hi all,
I have a question. Do you know what "python-pyrtc" is?
As its introduction, it is an extension of Python that can talk to RTC (Real Time Clock). However, there is nothing mention about a way... |
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jackbk |
General Coding Help |
3 |
4,014 |
Feb-09-2017, 09:50 AM |
