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by PeterO
Tue Oct 08, 2019 8:32 am
Forum: General discussion
Topic: Poor internal comms in Pi Towers ?
Replies: 7
Views: 458

Poor internal comms in Pi Towers ?

I see that some of the Code Club projects still refer to running IDLE for Python https://projects.raspberrypi.org/en/pro ... ecraft-pi/
yet latest Raspian has had it removed...

Who ever decided to remove IDLE doesn't seem to have consulted (or told) Code Club !

PeterO
by PeterO
Tue Oct 08, 2019 8:17 am
Forum: General discussion
Topic: RPI4: Why is everything still 32-bit?
Replies: 186
Views: 9448

Re: RPI4: Why is everything still 32-bit?

dickon wrote:
Tue Oct 08, 2019 8:11 am
But it's broken. Thoroughly broken.
And yet millions of systems using it manage to boot successfully ! How is that "broken" or does it just not do what you want it to do ?

PeterO
by PeterO
Mon Oct 07, 2019 5:20 pm
Forum: General discussion
Topic: Am I the only one that still would buy a Raspberry Pi 3b+?
Replies: 59
Views: 2881

Re: Am I the only one that still would buy a Raspberry Pi 3b+?

rin67630 wrote:
Mon Oct 07, 2019 11:23 am
*here in DE
:?: :roll:
PeterO
by PeterO
Mon Oct 07, 2019 1:47 pm
Forum: Code Club
Topic: Logo and certificates
Replies: 1
Views: 4068

Re: Logo and certificates

Code club email contact details are on this page:

https://codeclub.org/en/help

PeterO
by PeterO
Mon Oct 07, 2019 10:28 am
Forum: General discussion
Topic: RPI4: Why is everything still 32-bit?
Replies: 186
Views: 9448

Re: RPI4: Why is everything still 32-bit?

My point is, you're typing into a root prompt, which looks different, with a '#' instead of a '$' (conventionally), so you are aware that what you're doing is potentially dangerous. Conditioning people to simply prefix everything with a magic 'make all the permissions problems go away' string that ...
by PeterO
Mon Oct 07, 2019 9:49 am
Forum: General discussion
Topic: RPI4: Why is everything still 32-bit?
Replies: 186
Views: 9448

Re: RPI4: Why is everything still 32-bit?

which is much, much more dangerous than a proper root shell: A root shell.... where everything is implicitly prefixed with "sudo" whether you want it or not, whether you think about it or not....... As a long time Unix/Linux user (and former SysAdmin) these days I much prefer using a sudo prefix th...
by PeterO
Sun Oct 06, 2019 1:10 pm
Forum: General discussion
Topic: How to INSTALL Linux onto a Raspberry 4?
Replies: 30
Views: 2008

Re: How to INSTALL Linux onto a Raspberry 4?

I'm a professional level 3 Linux/Unix System Administrator Welcome to the forums. I'm a level 7 Wizard User (with the beard to prove it). :lol: Not sure what "Level 3 Linux/Unix Sys Admin" means, it must be some local scheme where you work. However I don't think your requirements are the same as th...
by PeterO
Fri Oct 04, 2019 12:43 pm
Forum: Advanced users
Topic: Need help with RX/TX consistency
Replies: 9
Views: 474

Re: Need help with RX/TX consistency

rpiMike wrote:
Fri Oct 04, 2019 12:40 pm
Are your Pi connections off by 1 Pin

https://pinout.xyz/
Looks like it to me too.
PeterO
by PeterO
Fri Oct 04, 2019 12:22 pm
Forum: Other programming languages
Topic: The Rust debate.
Replies: 151
Views: 10499

Re: The Rust debate.

Right, I'm off to write some Algol-60 :lol: Perhaps you've worked with a Burroughs B6700, a stack and descriptor based machine optimized to run Algol? Some light reading/watching for you :-) https://www.youtube.com/watch?v=Wa7KVU_e8U8 https://www.tnmoc.org/notes-from-the-museum/2019/7/5/the-elliott...
by PeterO
Fri Oct 04, 2019 9:57 am
Forum: Troubleshooting
Topic: How to connect 2 raspberries
Replies: 31
Views: 1083

Re: How to connect 2 raspberries

Sorry, but if you connect 2 devices with HDMI and the one end sends data and the other receives data, how is it that it cannot read input, since ti receives? HDMI devices are either send (e.g. PC, PVR, CableTVbox) OR receive (monitor,TV,projector). Since the PI is clearly a send device it lacks the...
by PeterO
Fri Oct 04, 2019 7:25 am
Forum: Other programming languages
Topic: The Rust debate.
Replies: 151
Views: 10499

Re: The Rust debate.

I find it a bit paradoxical though. One might expect that those with such experience would be acutely aware of their fallibility and propensity for error. That they would be very welcoming of all the help they can get ensuring things are correct. I think it might be an issue with "presentation" and...
by PeterO
Thu Oct 03, 2019 12:28 pm
Forum: Other programming languages
Topic: The Rust debate.
Replies: 151
Views: 10499

Re: The Rust debate.

sal55 wrote:
Thu Oct 03, 2019 12:20 pm
They may have introduced them, but nobody uses them!
And with opinion stated as fact you loose all credibility I'm afraid !
PeterO
by PeterO
Thu Oct 03, 2019 11:47 am
Forum: Other programming languages
Topic: The Rust debate.
Replies: 151
Views: 10499

Re: The Rust debate.

sal55 wrote:
Thu Oct 03, 2019 11:29 am

Whereas more modern languages that have ranges of fixed-width types have standardised on widths of 8, 16, 32 and 64 bits, including Rust.

Code: Select all

#include <sdtint.h>

int8_t  a;

......
PeterO
by PeterO
Thu Oct 03, 2019 9:38 am
Forum: Troubleshooting
Topic: How to connect 2 raspberries
Replies: 31
Views: 1083

Re: How to connect 2 raspberries

Does anyone know if you can "back to back" PI4 Ethernet ports without using a hub or switch ? PeterO Just tested pi4B to pi3B+ network port to network port, straight cable , static IP set on both pi's , was able to ssh from the pi4B to the pi 3B+ no problems so I don't see why you should not be abl...
by PeterO
Thu Oct 03, 2019 7:41 am
Forum: Troubleshooting
Topic: How to connect 2 raspberries
Replies: 31
Views: 1083

Re: How to connect 2 raspberries

Does anyone know if you can "back to back" PI4 Ethernet ports without using a hub or switch ?
PeterO
by PeterO
Thu Oct 03, 2019 6:26 am
Forum: General discussion
Topic: What is a good replacement for Etcher (ads and ignores privacy)
Replies: 83
Views: 4882

Re: What is a good replacement for Etcher (ads and ignores privacy)

IMO if someone isn't able to read a tutorial how to do something on linux in a terminal he or she'll have a hard time anyway, I believe we now have a things called "The Web" and "Web Browsers" that can be used to read tutorials :lol: About the only thing that is still command line based are the "ma...
by PeterO
Wed Oct 02, 2019 11:54 am
Forum: C/C++
Topic: Running C/C++ on Raspberry Pi
Replies: 32
Views: 3046

Re: Running C/C++ on Raspberry Pi

nick8967 wrote:
Wed Oct 02, 2019 11:41 am
Sorry, but objective C/C++ doesn't run only on macbooks??
I can't tell if that is that a statement or a question.
But....
Objective-C will run on lots of platforms.
PeterO
by PeterO
Tue Oct 01, 2019 1:10 pm
Forum: Other programming languages
Topic: The Rust debate.
Replies: 151
Views: 10499

Re: The Rust debate.

Heater wrote:
Tue Oct 01, 2019 12:24 pm
jahboater,
Yes, comparing programming languages is hard. Mostly for reasons that are nothing to do with performance.
But I don't understand you. Can you explain what you mean by "comparing the speeds of the two languages" ?
Sometimes you are a real pedantic fool !

PeterO
by PeterO
Tue Oct 01, 2019 7:59 am
Forum: General discussion
Topic: issues after upgrade
Replies: 6
Views: 348

Re: issues after upgrade

Hi, I have a Raspberry Pi 3 which was running stretch until yesterday. I modified source.lis and raspi.lis to reference buster rather than stretch then apt-get update apt-get dist-upgrade Major release upgrades like that are not recommended. It's better to just get a new SD card and start fresh wit...
by PeterO
Mon Sep 30, 2019 2:14 pm
Forum: General discussion
Topic: GUI Development using GTK
Replies: 7
Views: 334

Re: GUI Development using GTK

I would suggest the OP gives native GTK development a try on their PI.
My intro is a little out of date (It mentions PIXEL!) since Raspbian now ships the latest Glade but it is basically still applicable.
http://www.peteronion.org.uk/GtkExample ... rials.html
PeterO
by PeterO
Mon Sep 30, 2019 1:56 pm
Forum: General discussion
Topic: GUI Development using GTK
Replies: 7
Views: 334

Re: GUI Development using GTK

I developed a Python program which runs on a Pi using GTK / TKinter and found the 'tk_happy' utility program GTK and TKinter are unrelated. As far as I can see "tk_happy" has nothing at all to do with GTK. As bjtheone suggested I do all my GTK development work on Raspbian (on Pi3/4) and Mint (on In...
by PeterO
Mon Sep 30, 2019 6:59 am
Forum: General discussion
Topic: Which is better for power?
Replies: 26
Views: 1495

Re: Which is better for power?

rin67630 wrote:
Mon Sep 30, 2019 1:42 am
Wow! £27.20 + £22.00 postage for a fuse holder and a couple of fuses? I would not really recommend such a deal!
If you go LiPo route then I would recommend another thing - something like this: https://www.ebay.co.uk/itm/orangeRX-Boo ... 3910566744
:roll:

PeterO
by PeterO
Sun Sep 29, 2019 8:29 pm
Forum: General discussion
Topic: Which is better for power?
Replies: 26
Views: 1495

Re: Which is better for power?

Yes, but don't forget protection strips to balance the load. You should not put 2 LiPo cells in series without that. Never heard of that before, and I've run systems with 5S2P batteries in the past, with 750W loads. It's important to keep them in balance when charging not when discharging. PeterO
by PeterO
Sun Sep 29, 2019 12:13 pm
Forum: OpenGLES
Topic: Where's my Triangle??
Replies: 18
Views: 2115

Re: Where's my Triangle??

I've never seen a clear explanation of what to use on Pi3 vs Pi4.
PeterO
by PeterO
Sun Sep 29, 2019 6:36 am
Forum: Other programming languages
Topic: The Rust debate.
Replies: 151
Views: 10499

Re: The Rust debate.

Some general points.... I think it's important to remember that when you compare languages one key question to bear in mind is "How long have they existed?". It's unfair to judge a new language in the same way you would an mature one. New ones can change since they don't yet have the inertia of a la...

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