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by hippy
Fri Jan 08, 2021 2:04 pm
Forum: Advanced users
Topic: Is it possible to change an USB address?
Replies: 5
Views: 267

Re: Is it possible to change an USB address?

I think than maybe giving a different address to the USB serial might work. Can it be done? How? Can you explain what you mean by "different address" when it comes to USB or a USB serial port ? Are you talking about the "/dev/ttyACM0" name or something else ? The better you can ...
by hippy
Thu Jan 07, 2021 9:36 pm
Forum: Off topic discussion
Topic: If only...
Replies: 92
Views: 4309

Re: If only...

The UK government has addressed the issue of lack of resources for remote learning; Schools will be kept open for those students -

https://www.bbc.co.uk/news/education-55565537

:roll:
by hippy
Thu Jan 07, 2021 2:15 pm
Forum: Off topic discussion
Topic: If only...
Replies: 92
Views: 4309

Re: If only...

As I pointed out in another post, at least locally, everything is done in a browser. The only things a "Distance Learning" package needs are a web cam and an audio input port (and that can get just a bit tricky). Sounds like my £15 Android phone fulfils all the requirements, and one can b...
by hippy
Thu Jan 07, 2021 2:04 pm
Forum: Troubleshooting
Topic: Pi 400 broke already?
Replies: 12
Views: 408

Re: Pi 400 broke already?

I would guess bringing 5V to gpio pin could kill the GPIO functionality (of this pin or related pins) but not whole device. The problem is 5V can pass through internal ESD diodes and silicon connected to the GPIO pin and onto the internal power rails, raising that above safe levels, and damaging ot...
by hippy
Wed Jan 06, 2021 2:03 pm
Forum: Beginners
Topic: fdisk (w) does not save partition changes
Replies: 13
Views: 290

Re: fdisk (w) does not save partition changes

(*) Yes, apparently, there is an image version of PINN - which seems to me to defeat the primary purpose of NOOBS/PINN - which is to be installable w/o using any wacky "image" type utility. I believe the PINN image came about to make life easier for those who could not handle the 'drag an...
by hippy
Wed Jan 06, 2021 1:49 pm
Forum: General discussion
Topic: Control my tv with raspberry Pi from a remote location
Replies: 4
Views: 163

Re: Control my tv with raspberry Pi from a remote location

A Python Flask web application shares the webpage with the remote device and receives the requests which then send out the IR commands to LIRC. That would be my approach. A web server can be more easily connected to from another PC or phone, locally or remote, without the faff of having to set-up M...
by hippy
Wed Jan 06, 2021 12:54 pm
Forum: Troubleshooting
Topic: Dead Pi4b
Replies: 8
Views: 278

Re: Dead Pi4b

I've never had a Pi die on me. Nor me and it seems most people don't but there were a number of people who suffered unexplained failures with 3B+'s and a number of "Green light of death" issues with the 4B. The numbers involved are very low compared to the number of Pi's sold so perhaps j...
by hippy
Wed Jan 06, 2021 12:36 pm
Forum: Off topic discussion
Topic: If only...
Replies: 92
Views: 4309

Re: If only...

Give the kids computers and a problem and let them do they own tech support ;) That may be fine if the goal is to teach kids computing but we are talking about providing a tool which allows distance learning here. There should be no necessity for the kids targeted to do anything other than turn it ...
by hippy
Wed Jan 06, 2021 12:28 pm
Forum: Off topic discussion
Topic: I need to know a method to archive my emails.
Replies: 2
Views: 358

Re: Need advice

Copy it to a USB hard disk.
by hippy
Tue Jan 05, 2021 7:43 pm
Forum: Networking and servers
Topic: Using rpi in rural areas
Replies: 4
Views: 350

Re: Using rpi in rural areas

I frequently used Pi in rural areas and if needed for i.e. for a classroom I did set the pi4 up as an access point to allow WiFi to it. I have always favoured a separate WiFi router acting as the access point. The advantage there with the right choice is one can add external antennas, even directio...
by hippy
Tue Jan 05, 2021 7:24 pm
Forum: General discussion
Topic: I have a product idea for older people, and want to use a PI for a sample - need help!
Replies: 52
Views: 1622

Re: I have a product idea for older people, and want to use a PI for a sample - need help!

YorkshireDave wrote:
Tue Jan 05, 2021 4:31 pm
the world is sadly, fundamentally, divided into two types of people - the givers and the takers
Including those who altruistically want to help people and those who want to profit from helping people.

Good luck with your venture.
by hippy
Tue Jan 05, 2021 2:36 pm
Forum: Advanced users
Topic: Ondemand Governor
Replies: 12
Views: 418

Re: Ondemand Governor

So I guess I can read that "ondemand" does indeed scale frequencies based on load regardless of whether the RPi is set to overclock? That's what I see. My Pi 3B isn't over-clocked, presumably is using 'ondemand', and and its frequency rises from 600MHz to whatever when programs are run, t...
by hippy
Tue Jan 05, 2021 2:03 pm
Forum: Off topic discussion
Topic: If only...
Replies: 92
Views: 4309

Re: If only...

The more I think about this, it does seem that the Pi 400 with suitable web camera would be an ideal solution to the distance learning problem at all levels in education. Is there any specification or requirements list anywhere which details what a computer suitable for distance learning must and s...
by hippy
Tue Jan 05, 2021 12:58 pm
Forum: General discussion
Topic: Pi Laptop - pibook!
Replies: 9
Views: 566

Re: Pi Laptop - pibook!

Is a pi laptop the next logical step? I was discussing this with some friends the other day. While it seems like the natural evolution of the Pi 400 it's not quite so simple as "attach a screen and call it a laptop". One of the not immediately obvious problems is weight; having to make th...
by hippy
Tue Jan 05, 2021 12:29 pm
Forum: General discussion
Topic: I have a product idea for older people, and want to use a PI for a sample - need help!
Replies: 52
Views: 1622

Re: I have a product idea for older people, and want to use a PI for a sample - need help!

Patently you've not read any of the previous posts hippy. I have read them all. And more than once. Beyond having a screen, LED's, switches, playing sounds, reading "std sensors" - with no explanation of what those sensors are; other than it being intended to help older people nothing des...
by hippy
Mon Jan 04, 2021 7:07 pm
Forum: General discussion
Topic: X86-64 on my PI 4B 8GB
Replies: 12
Views: 675

Re: X86-64 on my PI 4B 8GB

pasdechance wrote:
Mon Jan 04, 2021 4:26 pm
Have you looked into using Box86?
Box86 only runs 32-bit code.
by hippy
Mon Jan 04, 2021 6:48 pm
Forum: C/C++
Topic: compiler warnings about operator precedences (chess engine)
Replies: 68
Views: 1617

Re: compiler warnings about operator precedences

#define W while seem to imply that it is deliberate obfuscation. I wouldn't say "deliberate obfuscation" when the attempt is to keep the number of characters typed as code below 2048. It's more a compression which consequently leads to unreadability. If this thread had started with "...
by hippy
Mon Jan 04, 2021 6:24 pm
Forum: General discussion
Topic: I have a product idea for older people, and want to use a PI for a sample - need help!
Replies: 52
Views: 1622

Re: I have a product idea for older people, and want to use a PI for a sample - need help!

here's the flow chart https://imgur.com/LSd4UsV But what is it describing ? It's all very general, doesn't detail what those boxes mean or what's actually involved. Plus it seems incomplete; there's a "turn on op" but nothing which seems to turn it off. You only "poll buttons" o...
by hippy
Mon Jan 04, 2021 4:46 pm
Forum: C/C++
Topic: compiler warnings about operator precedences (chess engine)
Replies: 68
Views: 1617

Re: compiler warnings about operator precedences

"A chess program smaller than 2KB (of non-blank source)" That would explain why the code is how it is rather than it how it may otherwise have been. With that context it seems entirely reasonable for such code to use "&" instead of "&&" when it delivers the ...
by hippy
Mon Jan 04, 2021 4:19 pm
Forum: Beginners
Topic: Why are the GPIO physical/Broadcomm pin assignmnents so strange and unrelated?
Replies: 14
Views: 340

Re: Why are the GPIO physical/Broadcomm pin assignmnents so strange and unrelated?

As I've posted before, It is good job that the same engineers who designed the Raspberry Pi pinout and configuration did not design The UK 400KV Super Grid , as there would be a Few black outs ,And fried Line Engineers. Regards BoyOh Yes, you've said that before, and it was as ridiculous and unfoun...
by hippy
Mon Jan 04, 2021 4:08 pm
Forum: General discussion
Topic: I have a product idea for older people, and want to use a PI for a sample - need help!
Replies: 52
Views: 1622

Re: I have a product idea for older people, and want to use a PI for a sample - need help!

I have a product idea for older people. The end product would use a dedicated microprocessor. So, in order to simply demonstrate the concept to prospective business, I'm looking to use a Pi to build a 'functionally working' sample. Wouldn't it make more sense to build a prototype using that micropr...
by hippy
Mon Jan 04, 2021 3:56 pm
Forum: Off topic discussion
Topic: If only...
Replies: 92
Views: 4309

Re: If only...

More "Hmmm...". I seem to be arguing if the maths education is down pat then actual coding as we commonly know it is not really necessary to be taught in school. Indeed. We all learned the algorithms and processes to do maths, make a cup of tea, cross the road safely, even form a wheel or...
by hippy
Mon Jan 04, 2021 3:19 pm
Forum: C/C++
Topic: compiler warnings about operator precedences (chess engine)
Replies: 68
Views: 1617

Re: compiler warnings about operator precedences

PieceType>2 & StepVec<0 It is interesting to note that there couldn't be any ambiguity in a language which has proper typing, a boolean type which could only ever be true or false, when '&' meant bit-wise 'and'. No matter what the precedence; the semantics would be incorrect and it would fai...
by hippy
Mon Jan 04, 2021 12:09 pm
Forum: Beginners
Topic: Why are the GPIO physical/Broadcomm pin assignmnents so strange and unrelated?
Replies: 14
Views: 340

Re: Why are the GPIO physical/Broadcomm pin assignmnents so strange and unrelated?

As I've posted before, It is good job that the same engineers who designed the Raspberry Pi pinout and configuration did not design The UK 400KV Super Grid , as there would be a Few black outs ,And fried Line Engineers. Regards BoyOh Yes, you've said that before, and it was as ridiculous and unfoun...
by hippy
Mon Jan 04, 2021 12:03 pm
Forum: C/C++
Topic: compiler warnings about operator precedences (chess engine)
Replies: 68
Views: 1617

Re: compiler warnings about operator precedences

OTOH I do not want to risk to perhaps muddle up my code which is actually working fine, I don't see how forcing the precedence you desire could muddle up your code. Forcing precedence is something I do by rote because I move between so many languages. I am a great advocate of defensive programming;...

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