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by Heater
Sun Aug 02, 2020 9:43 pm
Forum: General discussion
Topic: For MrEngman ---> WiFi Dongle for Raspberry Pi CM3+
Replies: 21
Views: 470

Re: For MrEngman ---> WiFi Dongle for Raspberry Pi CM3+

DougieLawson wrote:
Sun Aug 02, 2020 9:18 pm
...the guy who builds the out-of-tree drivers for wonky WiFi modules that aren't well suppored in the mainline kernel.
Cool.

Now I understand why this is a constant source of questions over the years. The kernel changes, likely the hardware changes... A never ending task.

All power MrEngman.
by Heater
Sun Aug 02, 2020 8:48 pm
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

When I was regularly driving hire cars I had it specified that they only delivered those which had the indicator stalk on the side I was used to because some inadvertent mistakes can be deadly. Interesting. I spent a few years riding a Yamaha motorcycle on a "learners licence". When it came to the ...
by Heater
Sun Aug 02, 2020 8:24 pm
Forum: General discussion
Topic: For MrEngman ---> WiFi Dongle for Raspberry Pi CM3+
Replies: 21
Views: 470

Re: For MrEngman ---> WiFi Dongle for Raspberry Pi CM3+

Who is MrEngman? And why does your link to Amazon not work?

Edit: Maybe this helps: viewtopic.php?t=178405

Or just don't buy junk off Amazon.
by Heater
Sun Aug 02, 2020 8:10 pm
Forum: General discussion
Topic: EasyGUI without X?
Replies: 6
Views: 331

Re: EasyGUI without X?

If you really want to run a GUI application on a minimal Linux system without X Windows and all that goes on top of that, then you can use the Qt GUI library to display your application's GUI straight into the Linux frame buffer. Including nice fast hardware accelerated 3D rendering with OpenGL. I f...
by Heater
Sun Aug 02, 2020 3:54 pm
Forum: General discussion
Topic: How to run X86 docker images on RPi 4 ?
Replies: 14
Views: 659

Re: How to run X86 docker images on RPi 4 ?

Now a RISC-V based board ... that's a possibility. I could even envisage some BCM27xx SoC of the future having RISC-V cores embedded alongside the ARM. Now that it looks likely that ARM will be bought by Nvidia it is perhaps time for all those building with ARM to consider getting together and cook...
by Heater
Sun Aug 02, 2020 3:09 pm
Forum: General discussion
Topic: How to run X86 docker images on RPi 4 ?
Replies: 14
Views: 659

Re: How to run X86 docker images on RPi 4 ?

I can already hear the howls of protest, but if you look at this with a clear mind, you'll see that it is a good idea. I'm have often been told I am empty headed. As such I must have a very clear mind. Thinks... hmmm... no, it's not coming to me. Please do tell. Why would an x86 based Raspberry Pi ...
by Heater
Sun Aug 02, 2020 6:40 am
Forum: Off topic discussion
Topic: Suggestion: Locked down, moderated HOWTO sub group
Replies: 6
Views: 603

Re: Suggestion: Locked down, moderated HOWTO sub group

... each environment has subtle differences. It is so nice to flip to a guide to accomplish what I know needs to be done without searching for the variant that is different. It's an obvious and nice idea for any user. I believe it is impossible to do. The software world we inhabit is enormous and i...
by Heater
Sat Aug 01, 2020 11:50 pm
Forum: Other programming languages
Topic: PHP in HTML Running on Apache2 Web Server
Replies: 9
Views: 1102

Re: PHP in HTML Running on Apache2 Web Server

See here: https://www.raspberrypi.org/documentati ... /apache.md

Why on Earth would you want to be stopping and starting Apache?
by Heater
Sat Aug 01, 2020 9:09 pm
Forum: General programming discussion
Topic: Binary search
Replies: 5
Views: 418

Re: Binary search

It all depends on what you need to optimize and the size/shape of your data. In some recent little programs I have been working on a hash map has turned out faster than any binary search. But there is an interesting point about all this. Traditionally CS students are taught about algorithmic complex...
by Heater
Sat Aug 01, 2020 8:24 pm
Forum: Off topic discussion
Topic: How many pi's do YOU own?
Replies: 59
Views: 3212

Re: How many pi's do YOU own?

Minus 10. Give or take.

My Pi's own me!
by Heater
Sat Aug 01, 2020 8:00 pm
Forum: General programming discussion
Topic: Binary search
Replies: 5
Views: 418

Re: Binary search

Interesting. I guess for that to be useful you need your arrays to be sorted before you start. Which might be a lot more processing time that the search itself. Or perhaps one always keeps ones arrays sorted by using the binary search to find the insertion point for new items and moving things after...
by Heater
Sat Aug 01, 2020 7:51 pm
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

Exactly.
by Heater
Sat Aug 01, 2020 7:31 pm
Forum: Other programming languages
Topic: JavaScript on Raspberry pi
Replies: 10
Views: 17873

Re: JavaScript on Raspberry pi

No idea but our OP has not been seen for three years. I guess any suggestions here, now, are pretty pointless.
by Heater
Sat Aug 01, 2020 7:16 pm
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

One reason would be that I've been using it for the last 10 years and am not inclined to switch. Hmm... I can well understand the desire to stay with what is familiar and comfortable. But really, for such a simple thing as a simple text editor? By that criteria I would refuse to drive any car today...
by Heater
Sat Aug 01, 2020 8:33 am
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

... Kate ... certainly the best text editor in existence ... It's very unlikely Kate is the best text editor in existence. You know when someone makes a statement like that, it's likely in jest. Why worry about 154MB when we have SD cards so small I can't find them holding 64 thousand megabytes and...
by Heater
Fri Jul 31, 2020 7:28 pm
Forum: General discussion
Topic: Actual memory bandwidth of raspberry pi4?
Replies: 75
Views: 3373

Re: Actual memory bandwidth of raspberry pi4?

I wonder rather believe these disappointing results are not real. ... The problem with most benchmarks is that the only thing they really benchmark is the benchmark. Better believe it. We all know that all these little benchmarks are pretty useless on their own. However whilst ejolson's OpenMP memo...
by Heater
Fri Jul 31, 2020 2:18 pm
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

The open source community has many brilliant designers. However they tend to have strong opinions of "the one true way things should work", and sometimes are less than receptive to requests that do not fit with this. They also are often writing tools for themselves or to solve their problem, which ...
by Heater
Fri Jul 31, 2020 9:42 am
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

Zenith singh wrote:
Fri Jul 31, 2020 8:16 am
... the best part is Notepad++ unofficially available as a Snap package for Linux users
I presume that only works in Intel computers.
by Heater
Fri Jul 31, 2020 9:41 am
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

It's very unlikely Kate is the best text editor in existence. There is no one single "best" text editor. So we agree then. In practice, the best editor is one you have written yourself,... Ah, no. If I wrote an editor for myself it would be terrible :( ...or modified to suit yourself (emacs), then ...
by Heater
Fri Jul 31, 2020 6:13 am
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

I myself tried to install Kate (certainly the best text editor in existence) on RpiOS. I decided against it because 154MB for a text editor is silly. And because I decided to get out of my comfort zone, I've become quite proficient in nano. It's made me a stronger user in general. Those are probabl...
by Heater
Fri Jul 31, 2020 12:28 am
Forum: C/C++
Topic: Polling Keyboard
Replies: 6
Views: 451

Re: Polling Keyboard

I think DarkElvenAngel is right. If your program were running in the background you will likely want to get keyboard events from somewhere in /dev/input. I presume what you end up with is scan codes. But I gather there are time stamps attached if you want to measure time between press/release events...
by Heater
Thu Jul 30, 2020 11:49 pm
Forum: C/C++
Topic: Polling Keyboard
Replies: 6
Views: 451

Re: Polling Keyboard

I'd like to poll the keyboard to know what keys are pressed at any time, so I can do my own manual debouncing / long-stroke-timing / whatever, and see multiple presses at once in real time. (Think like accessing an embedded keypad). I don't think this is possible. Normal keyboards have their own mi...
by Heater
Thu Jul 30, 2020 10:55 pm
Forum: General discussion
Topic: Notepad++
Replies: 51
Views: 3008

Re: Notepad++

The idea of Windows having a superior text editor is simply intolerable to most of us. I don't know about intolerable. As far as I can tell there is no Windows only text editor that is superior. Even MS' best effort to date, VS Code, runs on Linux, BSD and Mac as well as Windows. Sublime runs on Li...
by Heater
Thu Jul 30, 2020 10:24 pm
Forum: General discussion
Topic: Raspberry as an all around the world transmitter?
Replies: 8
Views: 387

Re: Raspberry as an all around the world transmitter?

Pleas do tell. Which solution did you find?
by Heater
Thu Jul 30, 2020 10:01 pm
Forum: General discussion
Topic: Poor Man's Pi Safe Backup Supply (UPS)
Replies: 21
Views: 1215

Re: Poor Man's Pi Safe Backup Supply (UPS)

OK, I'll rephrase that. Don't mess with charging batteries unless you know what you are doing. Maybe I'm just hyper sensitive after finding even Microsoft can't get this right. I ran an MS Surface Pro 4 for a couple of years. It was almost always connected to it's charger. Then the screen started to...

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