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by hippy
Tue Sep 18, 2018 1:10 pm
Forum: Python
Topic: how to send uart break command in python
Replies: 2
Views: 65

Re: how to send uart break command in python

Using the usually used PySerial module you can use 'send_break(duration)'.

https://pyserial.readthedocs.io/en/late ... l_api.html
by hippy
Mon Sep 17, 2018 7:37 pm
Forum: General discussion
Topic: Reporting posts - Clarification sought
Replies: 28
Views: 563

Re: Reporting posts - Clarification sought

Heater wrote:
Mon Sep 17, 2018 7:01 pm
See how insane this is?
No; you are constructing a strawman, ala reductio ad absurdum.

No one has a problem with "classes" or "ballcocks" but there are genuine and acknowledged issues with a master-slave concept and perpetuating it as an acceptable model.
by hippy
Mon Sep 17, 2018 6:48 pm
Forum: General discussion
Topic: Reporting posts - Clarification sought
Replies: 28
Views: 563

Re: Reporting posts - Clarification sought

I saw a headline on The Register about Python dropping master/slave, but I didn't read the article, so I don't know what the proposed alternative is. I believe the alternative they have adopted is "workers" or "helpers" and "parent process". Not sure I like the "workers" suggestion as that just bri...
by hippy
Mon Sep 17, 2018 6:04 pm
Forum: General discussion
Topic: Reporting posts - Clarification sought
Replies: 28
Views: 563

Re: Reporting posts - Clarification sought

Lets not succumb completely to any political correctness craziness from "social justice warriors", or we might loose all freedom of speech. :( Is it political correctness craziness from "social justice warriors" or just the right thing to do which should be done suggested by people who do have genu...
by hippy
Mon Sep 17, 2018 4:06 pm
Forum: General discussion
Topic: Reporting posts - Clarification sought
Replies: 28
Views: 563

Re: Reporting posts - Clarification sought

"if you call foul and are found to be incorrect you will incur a penalty" Unbelievable. I would question whether such a threat is even legal, let alone be forum policy. It's not forum policy. And yet, when I complained about the actions of mods - closing a thread then mods adding comments which wer...
by hippy
Mon Sep 17, 2018 2:42 pm
Forum: General discussion
Topic: Reporting posts - Clarification sought
Replies: 28
Views: 563

Re: Reporting posts - Clarification sought

Heater wrote:
Mon Sep 17, 2018 2:25 pm
Assuming you actually did as you say of course.
I am not sure why there would be any reason or cause for suspicion or insinuation that B.Goode had not done exactly as said, were lying in that respect. But, hey ho.
by hippy
Mon Sep 17, 2018 2:17 pm
Forum: Python
Topic: os.path to network pc
Replies: 9
Views: 171

Re: os.path to network pc

If your server is running CentOS instead of Windows, you still need to configure network share acess on the Raspberry Pi once. Perhaps - That's beyond my skill level and experience - unless you mean mounting on the Pi. The OP did say "This script return "true" on any pc on network (windons os), but...
by hippy
Mon Sep 17, 2018 1:43 pm
Forum: General discussion
Topic: Reporting posts - Clarification sought
Replies: 28
Views: 563

Reporting posts - Clarification sought

I do not wish to restart the debate from another thread but in light of - I can only suggest that if people see posts they think are toxic, report them. And that includes posts by mods! Can an admin clarify if, what was written by another mod, still applies - https://www.raspberrypi.org/forums/viewt...
by hippy
Mon Sep 17, 2018 1:18 pm
Forum: General discussion
Topic: How to almost "shutdown" the Pi, only HDMI showing an image, to save battery
Replies: 10
Views: 369

Re: How to almost "shutdown" the Pi, only HDMI showing an image, to save battery

your 'image' which will be shown for 2 hours is all static, right? So why not use an e-Paper display instead of a monitor connected to HDMI? Good point. And many I2C or SPI connected LCD/OLED displays can retain their images while a Pi is powered off as long as the display remains powered. It would...
by hippy
Mon Sep 17, 2018 1:05 pm
Forum: Python
Topic: os.path to network pc
Replies: 9
Views: 171

Re: os.path to network pc

Your idea is good, however I'll need to move files to this location, so I'll find the same problem later. No; you are just creating a 'fake local directory' and linking that local Linux directory to the remote share. Then the files and sub-directories of the remote share can be seen and accessed as...
by hippy
Sun Sep 16, 2018 10:51 pm
Forum: General discussion
Topic: How to almost "shutdown" the Pi, only HDMI showing an image, to save battery
Replies: 10
Views: 369

Re: How to almost "shutdown" the Pi, only HDMI showing an image, to save battery

I don't know how feasible it would be but it might be possible to shut down the ARM core(s), external peripherals and just leave the GPU running, have it restart the ARM core(s) later. It seems to be possible to just start the GPU at boot, not the ARM cores. You could perhaps do everything in the GP...
by hippy
Sun Sep 16, 2018 7:11 pm
Forum: General discussion
Topic: If I connect 5V output sensor directly with raspberry pi 3b+ so it is harmful for my raspberry pi. Yes or No?
Replies: 4
Views: 163

Re: If I connect 5V output sensor directly with raspberry pi 3b+ so it is harmful for my raspberry pi. Yes or No?

krrishdheeraj wrote:
Sun Sep 16, 2018 6:21 pm
digital output of DHT11 is 5V
The datasheet I have for the DHT11 describes the bi-directional data line as open drain so it is not technically a 5V output.
by hippy
Sun Sep 16, 2018 6:22 pm
Forum: Advanced users
Topic: Is the voltage at the USB hub regulated on the RPi3B?
Replies: 7
Views: 313

Re: Is the voltage at the USB hub regulated on the RPi3B?

klricks wrote:
Sat Sep 15, 2018 11:21 pm
I believe the 'ideal diode' is not included on the RPi3B+
That appears to be correct from the reduced schematics but the OP indicates they have a 3B.
by hippy
Sun Sep 16, 2018 6:14 pm
Forum: Python
Topic: Pi Python development on Windows
Replies: 8
Views: 223

Re: Pi Python development on Windows

I have my Pi SD Card shared with read-write access to my Windows PC's. I use Notepad and save to the PC then copy and paste over using Explorer, though I sometimes save directly to the Pi. To run the code one can Telnet or SSH in to run the program. When using "python filename.py" to run the program...
by hippy
Sun Sep 16, 2018 6:04 pm
Forum: General discussion
Topic: POE Hat Quarantine (Orders Blocked due to Hardware Issue)
Replies: 10
Views: 291

Re: POE Hat Quarantine (Orders Blocked due to Hardware Issue)

rsdavis wrote:
Sun Sep 16, 2018 4:29 pm
So for the Poe hats I did receive should they be returned due to issue?
That is up to you. My view is here -

https://www.raspberrypi.org/forums/view ... 5#p1365718
by hippy
Sun Sep 16, 2018 6:00 pm
Forum: Troubleshooting
Topic: Can't transfer a file OFF the Pi
Replies: 5
Views: 133

Re: Can't transfer a file OFF the Pi

flaxmant wrote:
Sun Sep 16, 2018 4:59 pm
But all 3 methods fail.
Perhaps describe how you are using those methods, the way in which they fail, what error messages you receive.
by hippy
Sun Sep 16, 2018 2:15 pm
Forum: General discussion
Topic: Raspberry Pi is a waste of time (and money).
Replies: 115
Views: 3843

Re: Raspberry Pi is a waste of time (and money).

We are not "toxic" ... Really I don't know where this whole "toxic" idea comes from. This is one of the most well behaved forums on the internet. Sorry; but to me that's just like a bunch of racists saying they are not racists and are the most non-racist people around. Just because someone won't se...
by hippy
Sun Sep 16, 2018 2:01 pm
Forum: General discussion
Topic: system calls
Replies: 13
Views: 359

Re: system calls

Where is your 'the nightmare which is Linux' log? Mostly in memory but probably easily summarised as being extremely similar to the experiences of those people who come here to rant about why the Pi / Raspbian / Linux has to be so hard. Questioning why things don't work or as described, why documen...
by hippy
Sun Sep 16, 2018 1:29 pm
Forum: General discussion
Topic: system calls
Replies: 13
Views: 359

Re: system calls

I'm guessing you've removed the userland stuff, but the dkms package for the driver was left behind. That's my suspicion as well. I did a "sudo apt-get install sysdig" then, when that failed, did a "sudo apt-get remove sysdig" as the online documentation for removal says, and thought that had retur...
by hippy
Sun Sep 16, 2018 1:05 pm
Forum: Beginners
Topic: Only one USB port?
Replies: 34
Views: 529

Re: Only one USB port?

If I plug in something in the OTG cable it works but if I plug the hub in the OTG cable and then something in the hub it does not. Exactly the experience I had which I warned about earlier. You will either have to use a hub which someone says does work for them, find a powered hub which works, or k...
by hippy
Sat Sep 15, 2018 10:12 pm
Forum: Advanced users
Topic: Is the voltage at the USB hub regulated on the RPi3B?
Replies: 7
Views: 313

Re: Is the voltage at the USB hub regulated on the RPi3B?

I'll give you half marks ;) The question is about the on-board hub, which itself contains the USB power protection/switching elements. So in that sense the hub is directly connected. I'll agree there, your are right. To push it to Pedantic Level 11 I could say I believe the protection / switching i...
by hippy
Sat Sep 15, 2018 10:06 pm
Forum: General discussion
Topic: system calls
Replies: 13
Views: 359

Re: system calls

Hey, didn't I already make this apology? Didn't you already say "that's OK"? What happened to those posts? I think they might be on some other thread. But please don't worry; I really am not blaming you. If something doesn't work, and then 'screws up everything else', that's %*@@#! Linux. I only re...
by hippy
Sat Sep 15, 2018 7:46 pm
Forum: General discussion
Topic: system calls
Replies: 13
Views: 359

Re: system calls

Since installing sysdig, then uninstalling it, I'm now seeing issues with apt-get upgrade, only a truncated telnet seesion log I am afraid, not sure what the "above failures" refer to ... run-parts: executing /etc/kernel/postinst.d/dkms 4.14.69-v7+ /boot/kernel7.img /etc/kernel/postinst.d/dkms: dkms...
by hippy
Sat Sep 15, 2018 7:02 pm
Forum: Beginners
Topic: Only one USB port?
Replies: 34
Views: 529

Re: Only one USB port?

So if I plug in the USB OTG cable in the Raspberry Pi and then plug in a USB hub in the OTG cable and then plug the keyboard and mouse into the hub will it work. I mean will any random USB hub work with the Raspberry Pi? Not necessarily. You may need a powered hub. I tried numerous bus-powered hubs...
by hippy
Sat Sep 15, 2018 6:53 pm
Forum: General discussion
Topic: any way to fix the microSD card reader on the P3b+?
Replies: 10
Views: 324

Re: any way to fix the microSD card reader on the P3b+?

genivx wrote:
Sat Sep 15, 2018 5:26 am
gonna toss this one away
It would be worth seeing what "return, test, repair or replace" service the retailer you bought it from offers. It may even be covered by warranty.

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